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Kumar P, Wallis M, Zhou X, Li F, Holland DC, Reddell P, Münch G, Raju R. Triplinones A-H: Anti-Inflammatory Arylalkenyl α,β-Unsaturated-δ-Lactones Isolated from the Leaves of Australian Rainforest Plant Cryptocarya triplinervis (Lauraceae). JOURNAL OF NATURAL PRODUCTS 2024; 87:1817-1825. [PMID: 38964296 DOI: 10.1021/acs.jnatprod.4c00454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Our ongoing exploration of Australian rainforest plants for the biodiscovery of anti-inflammatory agents led to the isolation and structural elucidation of eight new arylalkenyl α,β-unsaturated-δ-lactones, triplinones A-H (1-8), from the leaves of the Australian rainforest plant Cryptocarya triplinervis B. Hyland (Lauraceae). The chemical structures of these compounds were established by NMR spectroscopic data analysis, while their relative and absolute configurations were established using a combination of Mosher ester analysis utilizing both Riguera's and Kishi's methods, ECD experiments, and X-ray crystallography analysis. Compounds 1-8 exhibited good inhibitory activities toward nitric oxide (NO) production in lipopolysaccharide (LPS) and interferon (IFN)-γ induced RAW 264.7 macrophages, in particular compounds 1-3 and 5, with IC50 values of 7.3 ± 0.5, 6.0 ± 0.3, 5.6 ± 0.3, and 5.4 ± 2.5 μM, respectively.
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Affiliation(s)
- Paayal Kumar
- Department of Pharmacology, Western Sydney University, Campbelltown Campus, Sydney, NSW 2751, Australia
| | - Matthew Wallis
- School of Science, Western Sydney University, Penrith, Sydney, NSW 2751, Australia
| | - Xian Zhou
- NICM Health Research Institute, Western Sydney University, Westmead, NSW 2145, Australia
| | - Feng Li
- School of Science, Western Sydney University, Penrith, Sydney, NSW 2751, Australia
| | - Darren C Holland
- School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia
| | - Paul Reddell
- QBiotics Ltd, PO Box 1, Yungaburra, Queensland 4066, Australia
| | - Gerald Münch
- Department of Pharmacology, Western Sydney University, Campbelltown Campus, Sydney, NSW 2751, Australia
- NICM Health Research Institute, Western Sydney University, Westmead, NSW 2145, Australia
| | - Ritesh Raju
- Department of Pharmacology, Western Sydney University, Campbelltown Campus, Sydney, NSW 2751, Australia
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Choudhury UM, Mendhekar KL, Kunwar AC, Mohapatra DK. Total Synthesis and Determination of Absolute Configuration of Cryptorigidifoliol G. J Org Chem 2024; 89:5219-5228. [PMID: 36480814 DOI: 10.1021/acs.joc.2c02398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first asymmetric total synthesis of (1S,5R,7S)-cryptorigidifoliol G and (1S,5R,7R)-cryptorigidifoliol G of the proposed natural product was achieved. The key steps in the synthesis involved Keck-Maruoka allylation, our own developed protocol for the construction of the trans-2,6-disubstituted dihydropyran, iodolactonization, cross-metathesis, Prins cyclization, and cis-Wittig olefination reaction. A comparison of the NMR as well as analytical data and thorough analysis of the 2D NMR suggested that the absolute stereochemistry of the proposed natural product is (1S,5R,7S)-cryptorigidifoliol G.
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Affiliation(s)
- Utkal Mani Choudhury
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kishor L Mendhekar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ajit C Kunwar
- Centre for NMR and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Debendra K Mohapatra
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Neves NCV, de Mello MP, Zaidan I, Sousa LP, Braga AV, Machado RR, Kukula-Koch W, Boylan F, Caliari MV, Castilho RO. Campomanesia lineatifolia Ruiz & Pavón (Myrtaceae): Isolation of major and minor compounds of phenolic-rich extract by high-speed countercurrent chromatography and anti-inflammatory evaluation. JOURNAL OF ETHNOPHARMACOLOGY 2023; 310:116417. [PMID: 36990302 DOI: 10.1016/j.jep.2023.116417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Campomanesia lineatifolia Ruiz & Pavón (Myrtaceae), an edible species found in Brazilian Forest, possesses leaves that are traditionally used for the treatment of gastrointestinal disorders in Brazil. Extracts of C. lineatifolia are rich in phenolics and exhibit antioxidant, and gastric antiulcer properties. Furthermore, Campomanesia spp. have been described to possess anti-inflammatory properties, but studies related to chemical constituents of C. lineatifolia are scarce in the literature. AIM OF THE STUDY This work aims to identify the chemical composition of the phenolic-rich ethanol extract (PEE) from C. lineatifolia leaves and evaluate the anti-inflammatory activity that could be related to its ethnopharmacological use. MATERIALS AND METHODS The high-speed countercurrent chromatography (HSCCC), using an isocratic and a step gradient elution method, and NMR, HPLC-ESI-QTOF-MS/MS were used to isolate and identify the chemicals of PEE, respectively. Lipopolysaccharide-(LPS)-stimulated THP-1 cells were used to evaluate the anti-inflammatory activities from PEE and the two majority flavonoids isolated by measure TNF-α and NF-κB inhibition assays. RESULTS Fourteen compounds were isolated from the PEE, further identified by NMR and HPLC-ESI-QTOF-MS/MS, twelve of them are new compounds, and two others are already known for the species. The PEE, quercitrin and myricitrin promoted a concentration-dependent inhibition of TNF-α, and PEE promoted an inhibition of NF-κB pathway. CONCLUSIONS PEE from C. lineatifolia leaves demonstrated significant anti-inflammatory activity that may be related to the traditional use to treat gastrointestinal disorders.
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Affiliation(s)
- Nívea Cristina Vieira Neves
- GnosiaH, Pharmacognosy and Homeopathy Laboratory, School of Pharmacy, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil; School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; Department of Pharmacy, Centro Universitário Santa Rita, Área Rural, SN, KM 206, Caixa Postal 26, 31.270-901, Conselheiro Lafaiete, MG, Brazil.
| | - Morgana Pinheiro de Mello
- GnosiaH, Pharmacognosy and Homeopathy Laboratory, School of Pharmacy, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil.
| | - Isabella Zaidan
- Signalling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, School of Pharmacy, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil.
| | - Lirlândia Pires Sousa
- Signalling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, School of Pharmacy, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil.
| | - Alysson Vinícius Braga
- Department of Pharmaceutical Products, School of Pharmacy, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil.
| | - Renes Resende Machado
- Department of Pharmaceutical Products, School of Pharmacy, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil.
| | - Wirginia Kukula-Koch
- Department of Pharmacognosy with Medicinal Plants Garden, Medical University of Lublin, 1 Chodźki Str., 20-093, Lublin, Poland.
| | - Fabio Boylan
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
| | - Marcelo Vidigal Caliari
- Department of General Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil.
| | - Rachel Oliveira Castilho
- GnosiaH, Pharmacognosy and Homeopathy Laboratory, School of Pharmacy, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil; Consórcio Acadêmico Brasileiro de Saúde Integrativa, CABSIN, São Paulo, 05449-070, Brazil.
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Manh Ha N, The Son N. The Genus Cryptocarya: A Review on Phytochemistry and Pharmacological Activities. Chem Biodivers 2023; 20:e202201102. [PMID: 36759327 DOI: 10.1002/cbdv.202201102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/11/2023]
Abstract
Cryptocarya (the laurel family) is a large genus of great economic plants found in tropics and subtropics. Plants of this genus are a rich resource of essential oils, and pharmacological compounds. An overview of phytochemistry and pharmacological aspect is not yet available. This review aims to establish insightful information on phytochemistry, and pharmacological values. The literature collection is based on keywords 'Cryptocarya', 'phytochemistry', and 'pharmacology' using a broad panel of scientific sources, such as Google Scholar, Sciencedirect, and Wiley. Since the 1950s, Cryptocarya plants have been the main object in various phytochemical studies, by which about 390 metabolite compounds were isolated. Alkaloids, α-pyrones, and flavonoids could be seen as the main classes of Cryptocarya isolates. Cryptocarya constituents displayed potential pharmacological values such as anti-inflammatory, antimicrobial, antioxidative, antiviral, vasorelaxant activities, especially cytotoxicity.
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Affiliation(s)
- Nguyen Manh Ha
- Faculty of Chemical Technology, Hanoi University of Industry, 298 Cau Dien, North Tu Liem, Hanoi 10000, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi 1000, Vietnam
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Raju R, Gunawardena D, Reddell P, Münch G. Cryptocaryoic acids A - C: New phenyl alkyl acids isolated from the leaves of Australian rainforest plant Cryptocarya mackinnoniana. Fitoterapia 2022; 162:105266. [PMID: 35961598 DOI: 10.1016/j.fitote.2022.105266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/03/2022] [Accepted: 08/07/2022] [Indexed: 11/04/2022]
Abstract
Phytochemical investigation of the leaves of the Australian rainforest tree Cryptocarya mackinnoniana led to the discovery of three new oxygenated phenyl alkyl acids, cryptocaryoic acids A - C and two known compounds, cryptocaryone and 2',6'-dihydroxy-4'-methoxychalcone. The structures of all the compounds were determined by detailed spectroscopic analysis. Mosher's analysis was used for absolute stereochemistry determination at C-11, while the remaining stereochemistry determination of the one remaining stereocenter C-13 was based on NOESY correlations. All compounds isolated were also evaluated for their anti-inflammatory properties by assessing their inhibitory effects on LPS and interferon-γ induced nitric oxide (NO) production and TNF- α release in RAW 264.7 macrophages. The new cryptocaryoic acids exhibited weak to moderate anti-inflammatory activity (NO inhibition) ranging from (18.4-56 μM).
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Affiliation(s)
- Ritesh Raju
- Department of Pharmacology, Western Sydney University, Campbelltown Campus, Sydney, Australia.
| | - Dhanushka Gunawardena
- Department of Pharmacology, Western Sydney University, Campbelltown Campus, Sydney, Australia
| | - Paul Reddell
- QBiotics Ltd, PO Box 1, Yungaburra, Queensland, Australia
| | - Gerald Münch
- Department of Pharmacology, Western Sydney University, Campbelltown Campus, Sydney, Australia
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6
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He Q, Li S, Fan Y, Liu Y, Su Y, Zhou Z, Zhang YN, Li GL, Rao L, Zhang CR. Complex Flavanones from Cryptocarya metcalfiana and Structural Revision of Oboflavanone A. JOURNAL OF NATURAL PRODUCTS 2022; 85:1617-1625. [PMID: 35635020 DOI: 10.1021/acs.jnatprod.2c00279] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nine new complex flavanones, cryptometcones A-I (1-9), along with four known analogues, were isolated from Cryptocarya metcalfiana. The structures of 1-9 including their absolute configurations were elucidated by spectroscopic data analysis and electronic circular dichroism (ECD) calculations. In addition, the structure of oboflavanone A was revised, while the absolute configurations of oboflavanone B, cryptoflavanone C, and cryptoflavanone D were determined, according to their spectroscopic data. Compounds 3-5, 8, and 9 exhibited cytotoxicity against the HCT-116 cancer cell line.
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Affiliation(s)
- Qian He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Simin Li
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, People's Republic of China
| | - Yue Fan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yu Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yu Su
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Zhen Zhou
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yi-Nan Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, People's Republic of China
| | - Guo-Li Li
- Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing Three Gorges Medical College, Chongqing 404120, People's Republic of China
| | - Li Rao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Chuan-Rui Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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7
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Su Y, Song W, He Q, Fan Y, Rao L, Liu Y, Zhang Y, Zhang CR. Two Novel Flavonoids and Cytotoxicity Evaluation from Cryptocarya yunnanensis. Chem Biodivers 2022; 19:e202200224. [PMID: 35567314 DOI: 10.1002/cbdv.202200224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/02/2022] [Indexed: 11/08/2022]
Abstract
Two new flavonoids, cryunchalcone (1) and cryptoyunnanone I (2), were isolated from the leaves and twigs of Cryptocarya yunnanensis. Their structures were elucidated by the detailed spectroscopic data analysis and electronic circular dichroism (ECD) calculations. Cryunchalcone (1) is a biflavonoid constructed by a dihydrochalcone coupled with a chalcone through an unprecedented C-2''-C-6 linkage. Cryptoyunnanone I (2) is a unique complex flavanone bearing a phenylpropanoid moiety.
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Affiliation(s)
- Yu Su
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Wanbin Song
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P. R. China
| | - Qian He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yue Fan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Li Rao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yu Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yinan Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P. R. China
| | - Chuan-Rui Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, P. R. China
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8
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Ma Y, Vemula R, Zhang Q, Wu B, O'Doherty GA. Achmatowicz approach to the asymmetric synthesis of both (+)- and (−)-monanchorin. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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9
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Abu Zarga MH, Al-Jaber HI, Al-Qudah MA, Al-Aboudi AMF. A new cyclic polyketide and other constituents from Ononis spinosa growing wildly in Jordan and their antioxidant activity. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:290-295. [PMID: 33881372 DOI: 10.1080/10286020.2021.1914597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 04/05/2021] [Accepted: 04/05/2021] [Indexed: 06/12/2023]
Abstract
The new cyclic polyketide 7,9,11-trihydroxytetracos-2-eneoic acid δ-lactone (1), together with other eleven known compounds, were isolated from Ononis spinosa, growing wildly in Jordan. All isolated compounds were identified by thorough investigation of their spectral data including NMR and HRESIMS. Antioxidant activity testing of puerol B, specionin and the new cyclic polyketide revealed that puerol B had the highest DPPH radical scavenging activity (IC50 0.09 ± 0.006 mg/ml) as compared to α-tocopherol (IC50 0.039 ± 0.0006 mg/ml), while specionin had the highest ABTS radical scavenging power (IC50 0.013 ± 0.0008 mg/ml) as compared to α-tocopherol and ascorbic acid (IC50 0.042 ± 0.0004; 0.026 ± 0 .0007 mg/ml; respectively).
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Affiliation(s)
- Musa H Abu Zarga
- Department of Chemistry, School of Science, The University of Jordan, Amman 11942, Jordan
| | - Hala I Al-Jaber
- Department of Chemistry, Faculty of Science, Al-Balqa Applied University, Al-Salt 19117, Jordan
| | - Mahmoud A Al-Qudah
- Department of Chemistry, Faculty of Science, Yarmouk University, Irbid 21163, Jordan
| | - Amal M F Al-Aboudi
- Department of Chemistry, School of Science, The University of Jordan, Amman 11942, Jordan
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10
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Wang XN, Kuang XD, Wang Y, Sun P, He XR, Peng YA, Liu LH, Gu JL, Gan LS, Wang XN, Shu JC, Zhou ZW. α-Pyrones with glucose uptake-stimulatory activity from the twigs of Cryptocarya wrayi. Fitoterapia 2022; 158:105144. [PMID: 35149120 DOI: 10.1016/j.fitote.2022.105144] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/06/2022] [Accepted: 02/06/2022] [Indexed: 11/20/2022]
Abstract
Five new α-pyrones, cryptowratones A-E (1-5), and five known congeners (6-10), together with four other known compounds 11-14 were isolated from the twigs of Cryptocarya wrayi. The structures of the new compounds were elucidated on the basis of extensive spectroscopic data analysis and ECD calculations. All α-pyrones except 6 were evaluated for their stimulatory effects on glucose uptake in vitro with CHO-K1/GLUT4 cells. The positive control insulin displayed an approximate 42 ± 0.14% promotion on glucose uptake at 25 μM, compared with the CHO-K1/GLUT4 group. Compounds 1a/2a, 2, 3, and 10 showed a more significant stimulation of glucose uptake than insulin (25 μM) by 36 ± 0.08%, 27 ± 0.12%, 28 ± 0.12%, and 25 ± 0.12% at 1.5 μM, respectively. Immunofluorescence assays indicated the glucose uptake-stimulatory activity of α-pyrones might be correlated with increased GLUT4 translocation.
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Affiliation(s)
- Xiao-Na Wang
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Xiao-Dong Kuang
- Department of Pathology, School of Basic Medicine, Nanchang University, Nanchang 330006, PR China
| | - Yong Wang
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Peng Sun
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, PR China
| | - Xiao-Ru He
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China
| | - Yi-An Peng
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Lu-Hong Liu
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Jin-Long Gu
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China
| | - Li-She Gan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, PR China
| | - Xiao-Ning Wang
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, PR China
| | - Ji-Cheng Shu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China.
| | - Zhi-Wang Zhou
- School of Pharmacy, Nanchang University, Nanchang 330006, PR China; Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, PR China.
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11
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Sai M. Potassium Base-Promoted Diastereoselective Synthesis of 1,3-Diols from Allylic Alcohols and Aldehydes through a Tandem Allylic-Isomerization/Aldol-Tishchenko Reaction. Chem Asian J 2021; 16:4053-4056. [PMID: 34651444 DOI: 10.1002/asia.202101093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/14/2021] [Indexed: 01/07/2023]
Abstract
This study reports the first base-promoted aldol-Tishchenko reactions of allylic alcohols with aldehydes initiated by allylic isomerization. The reaction enables the diastereoselective synthesis of a variety of 1,3-diols with three contiguous stereogenic centers. Unlike commonly reported systems, our method allows the use of readily available allylic alcohols as nucleophiles instead of enolizable aldehydes and ketones.
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Affiliation(s)
- Masahiro Sai
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.,Research Foundation ITSUU Laboratory, C1232 Kanagawa Science Park R & D Building, 3-2-1 Sakado Takatsu-ku, Kawasaki, Kanagawa, 213-0012, Japan
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12
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He Q, Fan Y, Liu Y, Rao L, You YX, Su Y, Zhou Z, Xu YK, Zhang CR. Cryptoyunnanones A-H, Complex Flavanones from Cryptocarya yunnanensis. JOURNAL OF NATURAL PRODUCTS 2021; 84:2209-2216. [PMID: 34282909 DOI: 10.1021/acs.jnatprod.1c00287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Eight new complex flavanones with a novel linkage, cryptoyunnanones A-H (1-8), together with four known α-pyrones, were isolated from the leaves and twigs of Cryptocarya yunnanensis. The structures of 1-8 including their absolute configurations were characterized by spectroscopic data analysis and single-crystal X-ray crystallography. Plausible biosynthetic pathways for the formation of compounds 1-8 were proposed. Compounds 1-4 exhibited cytotoxicity against HCT-116, MDA-MB-231, and PC-3 cancer cells with IC50 values from 6.4 to 9.1 μM.
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Affiliation(s)
- Qian He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yue Fan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yu Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Li Rao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yun-Xia You
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yu Su
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Zhen Zhou
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - You-Kai Xu
- Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Yunnan 666303, People's Republic of China
| | - Chuan-Rui Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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13
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Tracy JS, Kalnmals CA, Toste FD. Beyond Allylic Alkylation: Applications of Trost Chemistry in Complex Molecule Synthesis. Isr J Chem 2021. [DOI: 10.1002/ijch.202000103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jacob S. Tracy
- Dept. of Chemistry University of California, Berkeley MC 1460 Berkeley CA 94720 USA
| | | | - F. Dean Toste
- Dept. of Chemistry University of California, Berkeley MC 1460 Berkeley CA 94720 USA
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14
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Tsurumi F, Miura Y, Nakano M, Saito Y, Fukuyoshi S, Miyake K, Newman DJ, O’Keefe BR, Lee KH, Nakagawa-Goto K. Spiro[3.5]nonenyl Meroterpenoid Lactones, Cryptolaevilactones G-L, an Ionone Derivative, and Total Synthesis of Cryptolaevilactone M from Cryptocarya laevigata. JOURNAL OF NATURAL PRODUCTS 2019; 82:2368-2378. [PMID: 31442048 PMCID: PMC8495473 DOI: 10.1021/acs.jnatprod.8b00732] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A CH3OH-CH2Cl2 (1:1) extract (N025439) of the leaves and twigs of Cryptocarya laevigata furnished eight new compounds, 1-8. Based on extensive 1D and 2D NMR spectroscopic data examination, the new δ-lactone derivatives 1-6 are monoterpene-polyketide hybrids containing a unique spiro[3.5]nonenyl moiety. Their trivial names, cryptolaevilactones G-L, follow those of the related known meroterpenoids cryptolaevilactones A-F. Cryptolaevilactone L (6) contains 11,12-cis-oriented substituents, while the other cryptolaevilactones contain trans-oriented groups. The structure of the linear δ-lactone 7, cryptolaevilactone M, was characterized from various spectroscopic data analysis, and the absolute configuration was determined by total synthesis through stereoselective allylation and Grubbs olefin metathesis. Compound 8 was elucidated to be an ionone derivative with a 3,4-syn-diol functionality.
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Affiliation(s)
- Fumika Tsurumi
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Yuta Miura
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Misaki Nakano
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Yohei Saito
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Shuichi Fukuyoshi
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Katsunori Miyake
- Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - David J. Newman
- NIH Special Volunteer, Wayne, Pennsylvania 19087, United States
| | - Barry R. O’Keefe
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, and Molecular Targets Program, Center for Cancer Research, National Cancer Institute, NCI at Frederick, Frederick, Maryland 21702-1201, United States
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, 2 Yuh-Der Road, Taichung, 40447, Taiwan
| | - Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7568, United States
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15
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Fan Y, Liu Y, You YX, Rao L, Su Y, He Q, Hu F, Li Y, Wei W, Xu YK, Lin B, Zhang CR. Cytotoxic arylalkenyl α,β-unsaturated δ-lactones from Cryptocarya brachythyrsa. Fitoterapia 2019; 136:104167. [DOI: 10.1016/j.fitote.2019.05.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 04/29/2019] [Accepted: 05/05/2019] [Indexed: 11/24/2022]
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16
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Che W, Li YZ, Liu JC, Zhu SF, Xie JH, Zhou QL. Stereodiverse Iterative Synthesis of 1,3-Polyol Arrays through Asymmetric Catalytic Hydrogenation. Formal Total Synthesis of (−)-Cyanolide A. Org Lett 2019; 21:2369-2373. [DOI: 10.1021/acs.orglett.9b00650] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Sudhakar Reddy G, Arjunreddy Mallampudi N, Lakshmi JK, Mohapatra DK. Total Synthesis of Cryptorigidifoliol K: Confirmation of Structure and Absolute Configuration. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- G. Sudhakar Reddy
- Organic Synthesis and Process Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad 500 007, Telangana INDIA
| | - N. Arjunreddy Mallampudi
- Organic Synthesis and Process Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad 500 007, Telangana INDIA
| | - Jerripothula K. Lakshmi
- Centre for NMR and Structural ChemistryCSIR-Indian Institute of Chemical Technology Hyderabad 500 007, Telangana INDIA
| | - Debendra K. Mohapatra
- Organic Synthesis and Process Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad 500 007, Telangana INDIA
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18
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Tsurumi F, Miura Y, Saito Y, Miyake K, Fujie T, Newman DJ, O'Keefe BR, Lee KH, Nakagawa-Goto K. Secondary Metabolites, Monoterpene-Polyketides Containing a Spiro[3.5]nonane from Cryptocarya laevigata. Org Lett 2018; 20:2282-2286. [PMID: 29624062 DOI: 10.1021/acs.orglett.8b00624] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Six novel lactone derivatives, cryptolaevilactones A-F (1-6), were isolated from Cryptocarya laevigata. Their unique spiro[3.5]nonane moiety by hetero [2 + 2] cyclization with monoterpene and polyketide was found for the first time in nature. Structural elucidation using various nuclear magnetic resonance (NMR) techniques revealed that 1-3 and 4-6 are diastereomers and partially established the absolute configurations.
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Affiliation(s)
- Fumika Tsurumi
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences , Kanazawa University , Kanazawa , 920-1192 , Japan
| | - Yuta Miura
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences , Kanazawa University , Kanazawa , 920-1192 , Japan
| | - Yohei Saito
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences , Kanazawa University , Kanazawa , 920-1192 , Japan
| | - Katsunori Miyake
- Tokyo University of Pharmacy and Life Sciences , Hachioji , Tokyo , 192-0392 , Japan
| | - Tetsuo Fujie
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences , Kanazawa University , Kanazawa , 920-1192 , Japan
| | - David J Newman
- National Institutes of Health (NIH) , Wayne , Pennsylvania 19087 , United States
| | - Barry R O'Keefe
- Natural Products Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis , National Cancer Institute (NCI) , Frederick , Maryland 21702-1201 , United States.,Molecular Targets Program, Center for Cancer Research , National Cancer Institute , NCI at Frederick , Frederick , Maryland 21702-1201 , United States
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599-7568 , United States.,Chinese Medicine Research and Development Center , China Medical University and Hospital , 2 Yuh-Der Road , Taichung , 40447 , Taiwan
| | - Kyoko Nakagawa-Goto
- School of Pharmaceutical Sciences, College of Medical, Pharmaceutical and Health Sciences , Kanazawa University , Kanazawa , 920-1192 , Japan.,Natural Products Research Laboratories, UNC Eshelman School of Pharmacy , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599-7568 , United States
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19
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Aljahdali AZ, Foster KA, O'Doherty GA. The asymmetric syntheses of cryptocaryols A and B. Chem Commun (Camb) 2018; 54:3428-3435. [PMID: 29547218 DOI: 10.1039/c8cc00482j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The recent total syntheses of cryptocaryols A and B are reviewed. These efforts include the correction of the initially assigned absolute and relative stereochemistry of this class of natural products. In addition to enabling the initial structure activity relationships for this class of natural products, these syntheses demonstrated the practical utility of several novel synthetic approaches.
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20
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Oyama M, Mori K, Shimogomi A, Abe N, Haba M, Yoshimura T, Ridho Witono J, Darnaedi D, Tanaka T, Murata J. Three New 5,6-Dihydro-α-pyrones Isolated from Cryptocarya nitens. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Reddy GS, Padhi B, Bharath Y, Mohapatra DK. Total Synthesis of Four Isomers of the Proposed Structures of Cryptorigidifoliol K. Org Lett 2017; 19:6506-6509. [DOI: 10.1021/acs.orglett.7b03174] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- G. Sudhakar Reddy
- Natural
Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
| | - Birakishore Padhi
- Natural
Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
| | - Yada Bharath
- Natural
Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
| | - Debendra K. Mohapatra
- Natural
Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Mathura Road, New Delhi 110 025, India
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22
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Li J, Lin L, Hu B, Zhou P, Huang T, Liu X, Feng X. Gold(I)/Chiral
N
,
N′
‐Dioxide–Nickel(II) Relay Catalysis for Asymmetric Tandem Intermolecular Hydroalkoxylation/Claisen Rearrangement. Angew Chem Int Ed Engl 2016; 56:885-888. [DOI: 10.1002/anie.201611214] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Indexed: 01/04/2023]
Affiliation(s)
- Jun Li
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Bowen Hu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Pengfei Zhou
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Tianyu Huang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin China
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23
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Li J, Lin L, Hu B, Zhou P, Huang T, Liu X, Feng X. Gold(I)/Chiral
N
,
N′
‐Dioxide–Nickel(II) Relay Catalysis for Asymmetric Tandem Intermolecular Hydroalkoxylation/Claisen Rearrangement. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201611214] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jun Li
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Bowen Hu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Pengfei Zhou
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Tianyu Huang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin China
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24
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Bredenkamp A, Wegener M, Hummel S, Häring AP, Kirsch SF. Versatile process for the stereodiverse construction of 1,3-polyols: iterative chain elongation with chiral building blocks. Chem Commun (Camb) 2016; 52:1875-8. [PMID: 26673147 DOI: 10.1039/c5cc09328g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A versatile process for the construction of 1,3-polyols, a key structural element of polyketide-type natural products, is presented. The modular synthesis strategy involves the iterative chain elongation with novel four-carbon building blocks to access all possible stereoisomers of a growing 1,3-polyol chain. These chiral building blocks are designed to install four carbon atoms with two stereogenic centres by performing only four experimentally simple steps per elongation cycle, thus making these building blocks attractive for the realization of a universal platform from which to access a diverse range of polyketidic molecules.
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Affiliation(s)
- Angela Bredenkamp
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany.
| | - Michael Wegener
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany.
| | - Sara Hummel
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany.
| | - Andreas P Häring
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany.
| | - Stefan F Kirsch
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany.
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25
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Perez F, Waldeck AR, Krische MJ. Total Synthesis of Cryptocaryol A by Enantioselective Iridium-Catalyzed Alcohol C-H Allylation. Angew Chem Int Ed Engl 2016; 55:5049-52. [PMID: 27079820 PMCID: PMC4834877 DOI: 10.1002/anie.201600591] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Indexed: 11/06/2022]
Abstract
The polyketide natural product cryptocaryol A is prepared in 8 steps via iridium catalyzed enantioselective diol double C-H allylation, which directly generates an acetate-based triketide stereodiad. In 4 previously reported total syntheses, 17-28 steps were required.
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Affiliation(s)
- Felix Perez
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA
| | - Andrew R Waldeck
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX, 78712-1167, USA.
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26
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Schmid T, Blees JS, Bajer MM, Wild J, Pescatori L, Cuzzucoli Crucitti G, Scipione L, Costi R, Henrich CJ, Brüne B, Colburn NH, Di Santo R. Diaryl Disulfides as Novel Stabilizers of Tumor Suppressor Pdcd4. PLoS One 2016; 11:e0151643. [PMID: 26982744 PMCID: PMC4794182 DOI: 10.1371/journal.pone.0151643] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/02/2016] [Indexed: 01/01/2023] Open
Abstract
The translation inhibitor and tumor suppressor Pdcd4 was reported to be lost in various tumors and put forward as prognostic marker in tumorigenesis. Decreased Pdcd4 protein stability due to PI3K-mTOR-p70S6K1 dependent phosphorylation of Pdcd4 followed by β-TrCP1-mediated ubiquitination, and proteasomal destruction of the protein was characterized as a major mechanism contributing to the loss of Pdcd4 expression in tumors. In an attempt to identify stabilizers of Pdcd4, we used a luciferase-based high-throughput compatible cellular assay to monitor phosphorylation-dependent proteasomal degradation of Pdcd4 in response to mitogen stimulation. Following a screen of approximately 2000 compounds, we identified 1,2-bis(4-chlorophenyl)disulfide as a novel Pdcd4 stabilizer. To determine an initial structure-activity relationship, we used 3 additional compounds, synthesized according to previous reports, and 2 commercially available compounds for further testing, in which either the linker between the aryls was modified (compounds 2-4) or the chlorine residues were replaced by groups with different electronic properties (compounds 5 and 6). We observed that those compounds with alterations in the sulfide linker completely lost the Pdcd4 stabilizing potential. In contrast, modifications in the chlorine residues showed only minor effects on the Pdcd4 stabilizing activity. A reporter with a mutated phospho-degron verified the specificity of the compounds for stabilizing the Pdcd4 reporter. Interestingly, the active diaryl disulfides inhibited proliferation and viability at concentrations where they stabilized Pdcd4, suggesting that Pdcd4 stabilization might contribute to the anti-proliferative properties. Finally, computational modelling indicated that the flexibility of the disulfide linker might be necessary to exert the biological functions of the compounds, as the inactive compound appeared to be energetically more restricted.
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Affiliation(s)
- Tobias Schmid
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590, Frankfurt, Germany
| | - Johanna S. Blees
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590, Frankfurt, Germany
| | - Magdalena M. Bajer
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590, Frankfurt, Germany
| | - Janine Wild
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590, Frankfurt, Germany
| | - Luca Pescatori
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur – Fondazione Cenci Bolognetti, “Sapienza” University of Rome, 00185, Rome, Italy
| | - Giuliana Cuzzucoli Crucitti
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur – Fondazione Cenci Bolognetti, “Sapienza” University of Rome, 00185, Rome, Italy
| | - Luigi Scipione
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur – Fondazione Cenci Bolognetti, “Sapienza” University of Rome, 00185, Rome, Italy
| | - Roberta Costi
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur – Fondazione Cenci Bolognetti, “Sapienza” University of Rome, 00185, Rome, Italy
| | - Curtis J. Henrich
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD, 21702, United States of America
- Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD, 21702, United States of America
| | - Bernhard Brüne
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590, Frankfurt, Germany
| | - Nancy H. Colburn
- Laboratory of Cancer Prevention, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD, 21702, United States of America
| | - Roberto Di Santo
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur – Fondazione Cenci Bolognetti, “Sapienza” University of Rome, 00185, Rome, Italy
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27
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Perez F, Waldeck AR, Krische MJ. Total Synthesis of Cryptocaryol A by Enantioselective Iridium-Catalyzed Alcohol C−H Allylation. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600591] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Felix Perez
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
| | - Andrew R. Waldeck
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
| | - Michael J. Krische
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. (A5300) Austin TX 78712-1167 USA
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28
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Yang BY, Kong LY, Wang XB, Zhang YM, Li RJ, Yang MH, Luo JG. Nitric Oxide Inhibitory Activity and Absolute Configurations of Arylalkenyl α,β-Unsaturated δ/γ-Lactones from Cryptocarya concinna. JOURNAL OF NATURAL PRODUCTS 2016; 79:196-203. [PMID: 26741483 DOI: 10.1021/acs.jnatprod.5b00839] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
During an ongoing exploration of potential anti-inflammatory agents from medicinal plants, eight new arylalkenyl α,β-unsaturated δ-lactones, cryptoconcatones A-H (1-8), and two unusual arylalkenyl α,β-unsaturated γ-lactones, cryptoconcatones I and J (9 and 10), were identified from the leaves and twigs of Cryptocarya concinna. The structures of these compounds were established based on spectroscopic data (MS, 1D/2D NMR), and their absolute configurations were determined with Riguera's method, the modified Mosher's method, chemical derivatization, and the Snatzke chirality rule. Compounds 4-6 and 8-10 showed inhibitory activity toward nitric oxide (NO) production in lipopolysaccharide-induced RAW 264.7 macrophages, particularly compounds 4 and 8-10, with IC50 values of 3.2, 4.2, 3.4, and 7.5 μM, respectively.
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Affiliation(s)
- Bing-Yuan Yang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, People's Republic of China
| | - Ling-Yi Kong
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, People's Republic of China
| | - Xiao-Bing Wang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, People's Republic of China
| | - Yang-Mei Zhang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, People's Republic of China
| | - Rui-Jun Li
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, People's Republic of China
| | - Ming-Hua Yang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, People's Republic of China
| | - Jian-Guang Luo
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, People's Republic of China
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29
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Rolli E, Marieschi M, Maietti S, Guerrini A, Grandini A, Sacchetti G, Bruni R. Phytotoxic Effects and Phytochemical Fingerprinting of Hydrodistilled Oil, Enriched Fractions, and Isolated Compounds Obtained from Cryptocarya massoy (Oken) Kosterm. Bark. Chem Biodivers 2016; 13:66-76. [PMID: 26765353 DOI: 10.1002/cbdv.201500010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Accepted: 05/11/2015] [Indexed: 11/10/2022]
Abstract
The hydrodistilled oil of Cryptocarya massoy bark was characterized by GC-FID and GC/MS analyses, allowing the identification of unusual C10 massoia lactone (3, 56.2%), C12 massoia lactone (4, 16.5%), benzyl benzoate (1, 12.7%), C8 massoia lactone (3.4%), δ-decalactone (5, 1.5%), and benzyl salicylate (2, 1.8%) as main constituents. The phytotoxic activities of the oil, three enriched fractions (lactone-rich, ester-rich, and sesquiterpene-rich), and four constituents (compounds 1, 2, 5, and δ-dodecalactone (6)) against Lycopersicon esculentum and Cucumis sativus seeds and seedlings were screened. At a concentration of 1000 μl/l, the essential oil and the massoia lactone-rich fraction caused a complete inhibition of the germination of both seeds, and, when applied on tomato plantlets, they induced an 85 and 100% dieback, respectively. These performances exceeded those of the well-known phytotoxic essential oils of Syzygium aromaticum and Cymbopogon citratus, already used in commercial products for the weed and pest management. The same substances were also evaluated against four phytopathogenic bacteria and ten phytopathogenic fungi, providing EC50 values against the most susceptible strains in the 100-500 μl/l range for the essential oil and in the 10-50 μl/l range for compound 6 and the lactone-rich fraction. The phytotoxic behavior was related mainly to massoia lactones and benzyl esters, while a greater amount of 6 may infer a good activity against some phytopathogenic fungi. Further investigations of these secondary metabolites are warranted, to evaluate their use as natural herbicides.
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Affiliation(s)
- Enrico Rolli
- Dipartimento di Bioscienze, Università degli Studi di Parma, Via G.P. Usberti 11/a, IT-43134 Parma
| | - Matteo Marieschi
- Dipartimento di Scienze degli Alimenti, LS9 Interlab Group, Università degli Studi di Parma, Via G.P. Usberti 95/a, IT-43134 Parma (phone: +39-0521-906004; fax: +39-0521-905403)
| | - Silvia Maietti
- Dipartimento di Scienze della Vita e Biotecnologie, SVeB, Università di Ferrara, Corso Ercole I d'Este 32, IT-44121 Ferrara
| | - Alessandra Guerrini
- Dipartimento di Scienze della Vita e Biotecnologie, SVeB, Università di Ferrara, Corso Ercole I d'Este 32, IT-44121 Ferrara
| | - Alessandro Grandini
- Dipartimento di Scienze della Vita e Biotecnologie, SVeB, Università di Ferrara, Corso Ercole I d'Este 32, IT-44121 Ferrara
| | - Gianni Sacchetti
- Dipartimento di Scienze della Vita e Biotecnologie, SVeB, Università di Ferrara, Corso Ercole I d'Este 32, IT-44121 Ferrara
| | - Renato Bruni
- Dipartimento di Scienze degli Alimenti, LS9 Interlab Group, Università degli Studi di Parma, Via G.P. Usberti 95/a, IT-43134 Parma (phone: +39-0521-906004; fax: +39-0521-905403).
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30
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Abstract
A de novo asymmetric total synthesis of the guanidine alkaloid natural product (+)-monanchorin has been achieved in nine steps from the commodity chemicals furan and caproic acid. The asymmetry of the route was introduced by a Noyori reduction of an acylfuran. In addition, this route relies upon an Achmatowicz rearrangement, a diastereoselective palladium catalyzed glycosylation, reductive amination, and an acid catalyzed bicyclic guanidine mixed acetal formation.
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Affiliation(s)
- Yuzhi Ma
- Department of Chemistry and Chemical Biology, Northeastern University , Boston, Massachusetts 02115, United States
| | - George A O'Doherty
- Department of Chemistry and Chemical Biology, Northeastern University , Boston, Massachusetts 02115, United States
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31
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32
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Brun E, Bellosta V, Cossy J. Total Synthesis of (+)-Cryptocaryol A Using a Prins Cyclization/Reductive Cleavage Sequence. J Org Chem 2015; 80:8668-76. [DOI: 10.1021/acs.joc.5b01323] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elodie Brun
- Laboratoire de Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI) - UMR 8231 -
ESPCI ParisTech/CNRS, PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Véronique Bellosta
- Laboratoire de Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI) - UMR 8231 -
ESPCI ParisTech/CNRS, PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Janine Cossy
- Laboratoire de Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI) - UMR 8231 -
ESPCI ParisTech/CNRS, PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
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33
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Liu Y, Rakotondraibe LH, Brodie PJ, Wiley JD, Cassera MB, Miller JS, Ratovoson F, Rakotobe E, Rasamison VE, Kingston DGI. Antimalarial 5,6-Dihydro-α-pyrones from Cryptocarya rigidifolia: Related Bicyclic Tetrahydro-α-Pyrones Are Artifacts1. JOURNAL OF NATURAL PRODUCTS 2015; 78:1330-8. [PMID: 26042470 PMCID: PMC4485685 DOI: 10.1021/acs.jnatprod.5b00187] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Indexed: 06/04/2023]
Abstract
Antimalarial bioassay-guided fractionation of an EtOH extract of the root wood of Cryptocarya rigidifolia (Lauraceae) led to the isolation of the five new 5,6-dihydro-α-pyrones cryptorigidifoliols A-E (1-5) and the six bicyclic tetrahydro-α-pyrone derivatives cryptorigidifoliols F-K (6-11). The structure elucidations of all compounds were made on the basis of the interpretation of spectroscopic data and chemical derivatization, and the relative and absolute configurations were determined by NOESY, electronic circular dichroism (ECD), and (1)H NMR analysis of α-methoxyphenylacetyl (MPA) derivatives. The bicyclic tetrahydro-α-pyrone derivatives were identified as products of acid-catalyzed intramolecular Michael addition of the 5,6-dihydro-α-pyrones in the presence of silica gel. A structure-activity relationship study suggested that the presence of an α,β-unsaturated carbonyl moiety is not essential for potent antimalarial activity.
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Affiliation(s)
- Yixi Liu
- Department
of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0212, Blacksburg, Virginia 24061, United States
| | - L. Harinantenaina Rakotondraibe
- Department
of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0212, Blacksburg, Virginia 24061, United States
| | - Peggy J. Brodie
- Department
of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0212, Blacksburg, Virginia 24061, United States
| | - Jessica D. Wiley
- Department
of Biochemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0308, Blacksburg, Virginia 24061, United States
| | - Maria B. Cassera
- Department
of Biochemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0308, Blacksburg, Virginia 24061, United States
| | - James S. Miller
- Missouri
Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166, United States
| | - F. Ratovoson
- Missouri
Botanical Garden, Lot
VP 31 Ankadibevava, Anjohy Antananarivo 101, Madagascar
| | - Etienne Rakotobe
- Centre
National d’Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - Vincent E. Rasamison
- Centre
National d’Application des Recherches Pharmaceutiques, B.P. 702, Antananarivo 101, Madagascar
| | - David G. I. Kingston
- Department
of Chemistry and the Virginia Tech Center for Drug Discovery, Virginia Tech, M/C 0212, Blacksburg, Virginia 24061, United States
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34
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Dias LC, Kuroishi PK, de Lucca EC. The total synthesis of (−)-cryptocaryol A. Org Biomol Chem 2015; 13:3575-84. [DOI: 10.1039/c5ob00080g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A stereoselective total synthesis of (−)-cryptocaryol A (1) is described. Key features of the 17-step route include the use of three boron-mediated aldol reaction–reduction sequences to control all stereocenters and an Ando modification of the Horner–Wadsworth–Emmons olefination that permitted the installation of the Z double bond of the α-pyrone ring.
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Affiliation(s)
- L. C. Dias
- Instituto de Química
- Universidade Estadual de Campinas
- Campinas
- Brazil
| | - P. K. Kuroishi
- Instituto de Química
- Universidade Estadual de Campinas
- Campinas
- Brazil
| | - E. C. de Lucca
- Instituto de Química
- Universidade Estadual de Campinas
- Campinas
- Brazil
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Horikawa M, Inai M, Oguri Y, Kuroda E, Tanaka M, Suzuki S, Ito T, Takahashi S, Kaku H, Tsunoda T. Isolation and total syntheses of cytotoxic cryptolactones A1, A2, B1, and B2: α,β-unsaturated δ-lactones from a Cryptomyzus sp. aphid. JOURNAL OF NATURAL PRODUCTS 2014; 77:2459-2464. [PMID: 25353976 DOI: 10.1021/np500542x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The cryptolactones A1, A2, B1, and B2, which are α,β-unsaturated δ-lactones, were isolated from a Cryptomyzus sp. aphid. The structures were established by 1-D and 2-D NMR spectra and CI-HRMS. Their absolute configurations were determined with the Kusumi-Mosher method, combined with asymmetric total syntheses. The syntheses were accomplished with the Mukaiyama aldol reaction and olefin metathesis, which utilized the second-generation Grubbs catalyst for the key steps. These compounds exhibited cytotoxic activity against human promyelocytic leukemia HL-60 cells with IC50 values of 0.97-5.3 μM.
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Affiliation(s)
- Mitsuyo Horikawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University , Tokushima 770-8514, Japan
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36
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Grkovic T, Blees JS, Bayer MM, Colburn NH, Thomas CL, Henrich CJ, Peach ML, McMahon JB, Schmid T, Gustafson KR. Tricyclic guanidine alkaloids from the marine sponge Acanthella cavernosa that stabilize the tumor suppressor PDCD4. Mar Drugs 2014; 12:4593-601. [PMID: 25196934 PMCID: PMC4145332 DOI: 10.3390/md12084593] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 06/25/2014] [Accepted: 07/24/2014] [Indexed: 01/14/2023] Open
Abstract
A cell-based high-throughput screen that assessed the cellular stability of a tumor suppressor protein PDCD4 (Programmed cell death 4) was used to identify a new guanidine-containing marine alkaloid mirabilin K (3), as well as the known compounds mirabilin G (1) and netamine M (2). The structures of these tricyclic guanidine alkaloids were established from extensive spectroscopic analyses. Compounds 1 and 2 inhibited cellular degradation of PDCD4 with EC50 values of 1.8 μg/mL and 2.8 μg/mL, respectively. Mirabilin G (1) and netamine M (2) are the first marine natural products reported to stabilize PDCD4 under tumor promoting conditions.
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Affiliation(s)
- Tanja Grkovic
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA.
| | - Johanna S Blees
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA.
| | - Magdalena M Bayer
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany.
| | - Nancy H Colburn
- Laboratory of Cancer Prevention, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA.
| | - Cheryl L Thomas
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA.
| | - Curtis J Henrich
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA.
| | - Megan L Peach
- Basic Science Program, Leidos Biomedical Research, Inc., Chemical Biology Laboratory, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA.
| | - James B McMahon
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA.
| | - Tobias Schmid
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany.
| | - Kirk R Gustafson
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA.
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37
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Cuccarese MF, Wang Y, Beuning PJ, O’Doherty GA. Cryptocaryol Structure-Activity Relationship Study of Cancer Cell Cytotoxicity and Ability to Stabilize PDCD4. ACS Med Chem Lett 2014; 5:522-6. [PMID: 24900873 DOI: 10.1021/ml4005039] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 02/17/2014] [Indexed: 12/11/2022] Open
Abstract
The synthetic cryptocaryols A and B and a series of their analogues have been evaluated for their cytotoxicity and their ability to stabilize the tumor suppressor PDCD4. Cytotoxicities in the 3 to 30 μM range were found. Both the cytotoxicity and PDCD4 stabilizing ability were tolerant of large stereochemical changes to the molecule. Co-dosing studies with cryptocaryols A and B and several known cancer drugs showed no measuable enhancement in cancer drug cytotoxicity.
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Affiliation(s)
- Michael F. Cuccarese
- Department of Chemistry
and
Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Yanping Wang
- Department of Chemistry
and
Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Penny J. Beuning
- Department of Chemistry
and
Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - George A. O’Doherty
- Department of Chemistry
and
Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
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38
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Bajer MM, Kunze MM, Blees JS, Bokesch HR, Chen H, Brauss TF, Dong Z, Gustafson KR, Biondi RM, Henrich CJ, McMahon JB, Colburn NH, Schmid T, Brüne B. Characterization of pomiferin triacetate as a novel mTOR and translation inhibitor. Biochem Pharmacol 2014; 88:313-21. [PMID: 24513322 PMCID: PMC3978168 DOI: 10.1016/j.bcp.2014.01.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 01/08/2014] [Accepted: 01/24/2014] [Indexed: 01/03/2023]
Abstract
Deregulation of the phosphatidylinositol 3-kinase (PI3K)-Akt-mammalian target of rapamycin (mTOR)-70kDa ribosomal protein S6 kinase 1 (p70(S6K)) pathway is commonly observed in many tumors. This pathway controls proliferation, survival, and translation, and its overactivation is associated with poor prognosis for tumor-associated survival. Current efforts focus on the development of novel inhibitors of this pathway. In a cell-based high-throughput screening assay of 15,272 pure natural compounds, we identified pomiferin triacetate as a potent stabilizer of the tumor suppressor programmed cell death 4 (Pdcd4). Mechanistically, pomiferin triacetate appeared as a general inhibitor of the PI3K-Akt-mTOR-p70(S6K) cascade. Interference with this pathway occurred downstream of Akt but upstream of p70(S6K). Specifically, mTOR kinase emerged as the molecular target of pomiferin triacetate, with similar activities against mTOR complexes 1 and 2. In an in vitro mTOR kinase assay pomiferin triacetate dose-dependently inhibited mTOR with an IC50 of 6.2 μM. Molecular docking studies supported the interaction of the inhibitor with the catalytic site of mTOR. Importantly, pomiferin triacetate appeared to be highly selective for mTOR compared to a panel of 17 lipid and 50 protein kinases tested. As a consequence of the mTOR inhibition, pomiferin triacetate efficiently attenuated translation. In summary, pomiferin triacetate emerged as a novel and highly specific mTOR inhibitor with strong translation inhibitory effects. Thus, it might be an interesting lead structure for the development of mTOR- and translation-targeted anti-tumor therapies.
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Affiliation(s)
- Magdalena M Bajer
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany
| | - Michael M Kunze
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany
| | - Johanna S Blees
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany
| | - Heidi R Bokesch
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD 21702, USA; Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Hanyong Chen
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Thilo F Brauss
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Kirk R Gustafson
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD 21702, USA
| | - Ricardo M Biondi
- Research Group PhosphoSites, Department of Internal Medicine I, University Clinic, 60590 Frankfurt, Germany
| | - Curtis J Henrich
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD 21702, USA; Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - James B McMahon
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD 21702, USA
| | - Nancy H Colburn
- Laboratory of Cancer Prevention, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD 21702, USA
| | - Tobias Schmid
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany.
| | - Bernhard Brüne
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany
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39
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Wang Y, O’Doherty GA. Cryptocaryols A and B: total syntheses, stereochemical revision, structure elucidation, and structure-activity relationship. J Am Chem Soc 2013; 135:9334-7. [PMID: 23750754 PMCID: PMC3772640 DOI: 10.1021/ja404401f] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The first total syntheses and structural elucidation of cryptocaryol A and cryptocaryol B were achieved in 23 and 25 linear steps, respectively. The synthesis relied on the use of a key pseudo-Cs symmetric pentaol intermediate, which in a stereochemically divergent manner was converted into either enantiomer as well as diastereomers. This synthetic effort enabled the first structure-activity relationships of this class of PDCD4 stabilizing natural products.
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Affiliation(s)
- Yanping Wang
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115
| | - George A. O’Doherty
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115
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40
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Feng R, Wang T, Wei W, Tan RX, Ge HM. Cytotoxic constitutents from Cryptocarya maclurei. PHYTOCHEMISTRY 2013; 90:147-153. [PMID: 23489577 DOI: 10.1016/j.phytochem.2013.01.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 12/27/2012] [Accepted: 01/28/2013] [Indexed: 06/01/2023]
Abstract
A phytochemical study of Cryptocarya maclurei led to isolation of five flavanones, cryptogiones G-H, and a polyketide, cryptomaclurone. The structures of the isolates were elucidated by analysis of the 1D and 2D NMR spectroscopic data, and their absolute configurations were determined by CD methods. A putative biosynthetic pathway to them is proposed. Cytotoxicity of these compounds evaluated against KB, SGC-7901 and SW 1116 cancer cell lines, with only cryptomaclurone exhibiting moderate cytotoxicity (IC50 28.2, 28.4 and 16.4μM, respectively).
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Affiliation(s)
- Rui Feng
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, China
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41
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Reddy CR, Veeranjaneyulu B, Nagendra S, Das B. Stereoselective Total Synthesis of Passifloricin A. Helv Chim Acta 2013. [DOI: 10.1002/hlca.201200356] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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42
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Reddy DS, Mohapatra DK. Total Synthesis and Structure Confirmation of Cryptocaryol A. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201309] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Blees JS, Bokesch HR, Rübsamen D, Schulz K, Milke L, Bajer MM, Gustafson KR, Henrich CJ, McMahon JB, Colburn NH, Schmid T, Brüne B. Erioflorin stabilizes the tumor suppressor Pdcd4 by inhibiting its interaction with the E3-ligase β-TrCP1. PLoS One 2012; 7:e46567. [PMID: 23056346 PMCID: PMC3462793 DOI: 10.1371/journal.pone.0046567] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Accepted: 08/31/2012] [Indexed: 12/20/2022] Open
Abstract
Loss of the tumor suppressor Pdcd4 was reported for various tumor entities and proposed as a prognostic marker in tumorigenesis. We previously characterized decreased Pdcd4 protein stability in response to mitogenic stimuli, which resulted from p70(S6K1)-dependent protein phosphorylation, β-TrCP1-mediated ubiquitination, and proteasomal destruction. Following high-throughput screening of natural product extract libraries using a luciferase-based reporter assay to monitor phosphorylation-dependent proteasomal degradation of the tumor suppressor Pdcd4, we succeeded in showing that a crude extract from Eriophyllum lanatum stabilized Pdcd4 from TPA-induced degradation. Erioflorin was identified as the active component and inhibited not only degradation of the Pdcd4-luciferase-based reporter but also of endogenous Pdcd4 at low micromolar concentrations. Mechanistically, erioflorin interfered with the interaction between the E3-ubiquitin ligase β-TrCP1 and Pdcd4 in cell culture and in in vitro binding assays, consequently decreasing ubiquitination and degradation of Pdcd4. Interestingly, while erioflorin stabilized additional β-TrCP-targets (such as IκBα and β-catenin), it did not prevent the degradation of targets of other E3-ubiquitin ligases such as p21 (a Skp2-target) and HIF-1α (a pVHL-target), implying selectivity for β-TrCP. Moreover, erioflorin inhibited the tumor-associated activity of known Pdcd4- and IκBα-regulated αtranscription factors, that is, AP-1 and NF-κB, altered cell cycle progression and suppressed proliferation of various cancer cell lines. Our studies succeeded in identifying erioflorin as a novel Pdcd4 stabilizer that inhibits the interaction of Pdcd4 with the E3-ubiquitin ligase β-TrCP1. Inhibition of E3-ligase/target-protein interactions may offer the possibility to target degradation of specific proteins only as compared to general proteasome inhibition.
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Affiliation(s)
- Johanna S. Blees
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Heidi R. Bokesch
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
- SAIC-Frederick, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Daniela Rübsamen
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Kathrin Schulz
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Larissa Milke
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Magdalena M. Bajer
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Kirk R. Gustafson
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Curtis J. Henrich
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
- SAIC-Frederick, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - James B. McMahon
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Nancy H. Colburn
- Laboratory of Cancer Prevention, Center for Cancer Research, National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Tobias Schmid
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
| | - Bernhard Brüne
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, Frankfurt, Germany
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44
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Chinna Reddy G, Balasubramanyam P, Salvanna N, Sreenivasulu Reddy T, Das B. The first stereoselective total synthesis of (Z)-cryptomoscatone D2, a natural G2 checkpoint inhibitor. Bioorg Med Chem Lett 2012; 22:2415-7. [DOI: 10.1016/j.bmcl.2012.02.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 02/08/2012] [Accepted: 02/09/2012] [Indexed: 12/01/2022]
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45
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Bariotaki A, Kalaitzakis D, Smonou I. Enzymatic reductions for the regio- and stereoselective synthesis of hydroxy-keto esters and dihydroxy esters. Org Lett 2012; 14:1792-5. [PMID: 22409731 DOI: 10.1021/ol3003833] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ketoreductases were utilized for the stereoselective synthesis of δ-hydroxy-β-keto esters, β-hydroxy-δ-keto esters, and β,δ-dihydroxy esters. Seven out of eight possible stereoisomers were obtained from the enzymatic reduction of the corresponding β,δ-diketo ester in high enantio- and diastereomeric excess.
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Affiliation(s)
- Anna Bariotaki
- Department of Chemistry, University of Crete, Heraklion 71003, Crete, Greece
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Vodolazhenko MA, Gorobets NY, Yermolayev SA, Musatov VV, Chebanov VA, Desenko SM. Application of stable fused dienolates for diversity oriented synthesis of 2,5-dioxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxamides. RSC Adv 2012. [DOI: 10.1039/c1ra00723h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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