1
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Tran TD, Le AT, Van Tran D, Le TQ, Pham TV. Essential oil of the leaves of psychotria asiatica L.: chemical composition, antioxidant, anti-inflammatory, and cytotoxic properties. Nat Prod Res 2024:1-6. [PMID: 38613430 DOI: 10.1080/14786419.2024.2341286] [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: 01/06/2024] [Accepted: 04/02/2024] [Indexed: 04/15/2024]
Abstract
This study is focused on investigating the chemical composition and bioactive properties of the essential oil extracted from Psychotria asiatica L., a plant species known for its medicinal properties. Utilising gas chromatography-mass spectrometry (GC-MS) analysis, the essential oil from P. asiatica was found to contain 53 distinct constituents. Major compounds identified include (E)-citral (20.6%), 10-epi-γ-eudesmol (15.9%), (Z)-citral (10.5%), geraniol (7.4%), α-cadinol (6.7%), 7-epi-α-eudesmol (4.4%), linalool (3.7%), and α-muurolol (3.4%). The essential oil did not exhibit antioxidant activity, as indicated by an IC50 value of > 100 µg/mL, whereas the positive control L-Ascorbic acid had an IC50 of 7.37 ± 0.27 µg/mL in the DPPH model. Assessment of its anti-inflammatory potential revealed an inhibitory effect on NO production, with an IC50 value of 29.08 ± 1.54 µg/mL in Lipopolysaccharide-induced RAW264.7 macrophage cells. Furthermore, the essential oil demonstrated significant cytotoxicity against the SK-LU-1 cancer cell line, with an IC50 value of 39.75 ± 1.79 μg/mL according to the sulforhodamine B (SRB) assay.
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Affiliation(s)
- Tien Dong Tran
- Faculty of Chemistry, University of Education, Hue University, Hue, Vietnam
| | - Anh Tuan Le
- Mien Trung Institute for Scientific Research, Vietnam National Museum of Nature, VAST, Thua Thien Hue, Vietnam
| | - Dat Van Tran
- Faculty of Chemistry, University of Education, Hue University, Hue, Vietnam
| | - Thang Quoc Le
- Faculty of Chemistry, University of Education, Hue University, Hue, Vietnam
| | - Ty Viet Pham
- Faculty of Chemistry, University of Education, Hue University, Hue, Vietnam
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2
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Duong TH, Vu YT, Long NP, Phan NHN, Pham NKT, Sichaem J, Kieu NKD, Duong CB, Nguyen TT, Dang VS, Nguyen HT. Bioactive-Guided Phytochemical Investigations, In Vitro and In Silico Alpha-Glucosidase Inhibition of Two Vietnamese Medicinal Plants Dicranopteris linearis and Psychotria adenophylla. Pharmaceuticals (Basel) 2023; 16:1253. [PMID: 37765061 PMCID: PMC10538207 DOI: 10.3390/ph16091253] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 08/26/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Little is known about the chemical and biological profiles of Dicranopteris linearis and Psychotria adenophylla. No previous studies have investigated alpha-glucosidase inhibition using extracts from D. linearis and P. adenophylla. In this paper, bioactive-guided isolation procedures were applied to the plants D. linearis and P. adenophylla based on alpha-glucosidase inhibition. From the most active fractions, 20 compounds (DL1-DL13 and PA1-PA7) were isolated. The chemical structures were elucidated using spectroscopic data and compared with those available in the literature. These compounds were evaluated for alpha-glucosidase inhibition, while a molecular docking study was performed to elucidate the mechanisms involved. Consequently, D. linearis and P. adenophylla might serve as a good potential for developing new antidiabetic preparations.
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Affiliation(s)
- Thuc-Huy Duong
- Department of Chemistry, University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City 700000, Vietnam; (T.-H.D.); (N.-H.-N.P.); (N.-K.-D.K.); (C.-B.D.)
| | - Y Thien Vu
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam;
| | - Nguyen Phuoc Long
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan 47392, Republic of Korea;
| | - Nguyen-Hong-Nhi Phan
- Department of Chemistry, University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City 700000, Vietnam; (T.-H.D.); (N.-H.-N.P.); (N.-K.-D.K.); (C.-B.D.)
- Faculty of Environment, Sai Gon University, 273 An Duong Vuong, Ward 3, District 5, Ho Chi Minh City 700000, Vietnam;
| | - Nguyen-Kim-Tuyen Pham
- Faculty of Environment, Sai Gon University, 273 An Duong Vuong, Ward 3, District 5, Ho Chi Minh City 700000, Vietnam;
| | - Jirapast Sichaem
- Research Unit in Natural Products Chemistry and Bioactivities, Faculty of Science and Technology, Thammasat University Lampang Campus, Lampang 52190, Thailand;
| | - Nguyen-Khanh-Duy Kieu
- Department of Chemistry, University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City 700000, Vietnam; (T.-H.D.); (N.-H.-N.P.); (N.-K.-D.K.); (C.-B.D.)
| | - Chi-Bao Duong
- Department of Chemistry, University of Education, 280 An Duong Vuong Street, District 5, Ho Chi Minh City 700000, Vietnam; (T.-H.D.); (N.-H.-N.P.); (N.-K.-D.K.); (C.-B.D.)
- Faculty of Environment, Sai Gon University, 273 An Duong Vuong, Ward 3, District 5, Ho Chi Minh City 700000, Vietnam;
| | - Thanh-Trung Nguyen
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam
- Center for Pharmaceutical Biotechnology, School of Medicine and Pharmacy, Duy Tan University, Danang 550000, Vietnam
| | - Van-Son Dang
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam;
- Institute of Tropical Biology, Vietnam Academy of Science and Technology, 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City 700000, Vietnam
| | - Huy Truong Nguyen
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam;
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3
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Smith PJ, Tong Z, Ragus J, Solon P, Shimkin KW, Anderson EA. Rhodium-Catalyzed [2 + 2 + 2] Cyclotrimerizations of Yndiamides with Alkynes. Org Lett 2022; 24:7522-7526. [PMID: 36214595 DOI: 10.1021/acs.orglett.2c02770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Yndiamides offer opportunities for the synthesis of vicinally nitrogen-disubstituted aromatics and azacycles. Here we report the Rh-catalyzed cyclotrimerization of alkynyl yndiamides with alkynes, the regiochemical outcome of which is controlled by the electronic properties of the alkyne partner, enabling the formation of 7-aminoindolines with excellent selectivity (up to >20:1 r.r.). We also report a complementary synthesis of bicyclic 1,2-dianiline derivatives by cyclotrimerization of yndiamides with terminal diynes, where slow addition of the diyne overcomes self-dimerization.
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Affiliation(s)
- Philip J Smith
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OxfordOX1 3TA, U.K
| | - Zixuan Tong
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OxfordOX1 3TA, U.K
| | - Julia Ragus
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OxfordOX1 3TA, U.K
| | - Pearse Solon
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OxfordOX1 3TA, U.K
| | - Kirk W Shimkin
- Discovery Chemistry, Therapeutics Discovery, Janssen Research & Development, LLC, Spring House, Pennsylvania19477, United States
| | - Edward A Anderson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, OxfordOX1 3TA, U.K
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4
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Wu Z, Krishnamurthy S, Tummalapalli KSS, Antilla JC. Chiral Calcium Phosphate-Catalyzed Enantioselective Amination of 3-Aryl-2-oxindoles with Dibenzyl Azodicarboxylate. J Org Chem 2022; 87:8203-8212. [PMID: 35621216 DOI: 10.1021/acs.joc.2c00432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A chiral calcium phosphate-catalyzed enantioselective amination of 2-oxindoles with dibenzyl azodicarboxylate has been developed, affording the products in consistently high yields and excellent enantioselectivity. This synthetic method features low catalyst loading and a high catalytic efficiency. Moreover, the practical value of this process is well demonstrated by a scale-up experiment and a trial of catalyst recovery and reuse.
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Affiliation(s)
- Zhenwei Wu
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Suvratha Krishnamurthy
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - K S Satyanarayana Tummalapalli
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Jon C Antilla
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China.,School of Science, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
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5
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Takayama H. What I Learned from Exploratory Research on Alkaloids. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Di X, Wang S, Oskarsson JT, Rouger C, Tasdemir D, Hardardottir I, Freysdottir J, Wang X, Molinski TF, Omarsdottir S. Bromotryptamine and Imidazole Alkaloids with Anti-inflammatory Activity from the Bryozoan Flustra foliacea. JOURNAL OF NATURAL PRODUCTS 2020; 83:2854-2866. [PMID: 33016699 DOI: 10.1021/acs.jnatprod.0c00126] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chemical investigation of the marine bryozoan Flustra foliacea collected in Iceland resulted in isolation of 13 new bromotryptamine alkaloids, flustramines Q-W (1-7) and flustraminols C-H (8-13), and two new imidazole alkaloids, flustrimidazoles A and B (14 and 15), together with 12 previously described compounds (16-27). Their structures were established by detailed spectroscopic analysis using 1D and 2D NMR and HRESIMS. Structure 2 was verified by calculations of the 13C and 1H NMR chemical shifts using density functional theory. The relative and absolute configurations of the new compounds were elucidated on the basis of coupling constant analysis, NOESY, [α]D, and ECD spectroscopic data, in addition to chemical derivatization. The compounds were tested for in vitro anti-inflammatory activity using a dendritic cell model. Eight compounds (1, 3, 5, 13, 16, 18, 26, and 27) decreased dendritic cell secretion of the pro-inflammatory cytokine IL-12p40, and two compounds (4 and 14) increased secretion of the anti-inflammatory cytokine IL-10. Deformylflustrabromine B (27) showed the most potent anti-inflammatory effect (IC50 2.9 μM). These results demonstrate that F. foliacea from Iceland expresses a broad range of brominated alkaloids, many without structural precedents. The potent anti-inflammatory activity in vitro of metabolite 27 warrants further investigations into its potential as a lead for inflammation-related diseases.
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Affiliation(s)
- Xiaxia Di
- Faculty of Pharmaceutical Sciences, University of Iceland, IS-107 Reykjavik, Iceland
| | - Shuqi Wang
- Faculty of Pharmaceutical Science, Shandong University, 250012 Jinan, China
| | - Jon T Oskarsson
- Department of Immunology, Landspitali-The National University Hospital of Iceland, IS-101 Reykjavik, Iceland
| | - Caroline Rouger
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Marine Natural Products Chemistry Research Unit, GEOMAR Helmholtz Centre for Ocean Research Kiel, 24106 Kiel, Germany
| | - Deniz Tasdemir
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Marine Natural Products Chemistry Research Unit, GEOMAR Helmholtz Centre for Ocean Research Kiel, 24106 Kiel, Germany
- Faculty of Mathematics and Natural Sciences, Kiel University, 24118 Kiel, Germany
| | - Ingibjorg Hardardottir
- Department of Immunology, Landspitali-The National University Hospital of Iceland, IS-101 Reykjavik, Iceland
- Faculty of Medicine, Biomedical Center, University of Iceland, IS-101 Reykjavik, Iceland
| | - Jona Freysdottir
- Department of Immunology, Landspitali-The National University Hospital of Iceland, IS-101 Reykjavik, Iceland
- Faculty of Medicine, Biomedical Center, University of Iceland, IS-101 Reykjavik, Iceland
| | - Xiao Wang
- Analytical Research & Development, Merck & Co. Inc, Rahway, New Jersey 07065, United States
| | - Tadeusz F Molinski
- Department of Chemistry and Biochemistry and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Sesselja Omarsdottir
- Faculty of Pharmaceutical Sciences, University of Iceland, IS-107 Reykjavik, Iceland
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7
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Sun XS, Wang XH, Tao HY, Wei L, Wang CJ. Catalytic asymmetric synthesis of quaternary trifluoromethyl α- to ε-amino acid derivatives via umpolung allylation/2-aza-Cope rearrangement. Chem Sci 2020; 11:10984-10990. [PMID: 34094346 PMCID: PMC8162408 DOI: 10.1039/d0sc04685j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, we developed an efficient Ir-catalyzed cascade umpolung allylation/2-aza-Cope rearrangement of tertiary α-trifluoromethyl α-amino acid derivatives for the preparation of a variety of quaternary α-trifluoromethyl α-amino acids in high yields with excellent enantioselectivities. The umpolung reactivity empowered by the activation of the key isatin-ketoimine moiety obviates the intractable enantioselectivity control in Pd-catalyzed asymmetric linear α-allylation. In combination with quasi parallel kinetic resolution or kinetic resolution, the generality of this method is further demonstrated by the first preparation of enantioenriched quaternary trifluoromethyl β-, γ-, δ- and ε-amino acid derivatives.
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Affiliation(s)
- Xi-Shang Sun
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Xing-Heng Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Hai-Yan Tao
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Liang Wei
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Chun-Jiang Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China .,State Key Laboratory of Elemento-organic Chemistry, Nankai University Tianjin 300071 China
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8
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Bristy TA, Barua N, Montakim Tareq A, Sakib SA, Etu ST, Chowdhury KH, Jyoti MA, Aziz MAI, Reza AA, Caiazzo E, Romano B, Tareq SM, Emran TB, Capasso R. Deciphering the Pharmacological Properties of Methanol Extract of Psychotria calocarpa Leaves by In Vivo, In Vitro and In Silico Approaches. Pharmaceuticals (Basel) 2020; 13:E183. [PMID: 32781707 PMCID: PMC7463710 DOI: 10.3390/ph13080183] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/02/2020] [Accepted: 08/05/2020] [Indexed: 01/11/2023] Open
Abstract
The present study explores the neuropharmacological, antinociceptive, antidiarrheal, antioxidant, thrombolytic and cytotoxic activity of methanol extract of Psychotria calocarpa leaves (MEPC). In anxiolytic activity testing of MEPC by elevated plus maze test, hole-board test and light-dark test, the extract exhibited a dose-dependent reduction of anxiety while the open field test observed a decreased locomotion. The administration of MEPC revealed a significant dose-dependent reduction of depressant behavior in forced swimming and tail suspension test. Additionally, the antinociceptive and antidiarrheal activity exposed a significant reduction of nociception and diarrheal behavior at the highest dose. In addition, a strong antioxidant activity was observed in DPPH-free radical-scavenging assay (IC50 = 461.05 μg/mL), total phenol content (118.31 ± 1.12 mg) and total flavonoid content (100.85 ± 0.97 mg). The significant clot-lysis activity was also observed with moderate toxicity (LC50 = 247.92 μg/mL) level in the lethality assay of brine shrimp. Moreover, in silico molecular docking study showed that the compound Psychotriasine could offer promising active site interactions for binding proteins. Furthermore, ADME/T and toxicological properties of the compound satisfied the Lipinski's rule of five and Veber rules for drug-like potential and toxicity level. Overall, MEPC had a potential neuropharmacological, antinociceptive, antidiarrheal and antioxidant activity that warranted further investigation.
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Affiliation(s)
- Tahmina Akter Bristy
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh; (T.A.B.); (N.B.); (A.M.T.); (S.T.E.); (K.H.C.); (M.A.J.); (M.A.I.A.); (A.S.M.A.R.)
| | - Niloy Barua
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh; (T.A.B.); (N.B.); (A.M.T.); (S.T.E.); (K.H.C.); (M.A.J.); (M.A.I.A.); (A.S.M.A.R.)
| | - Abu Montakim Tareq
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh; (T.A.B.); (N.B.); (A.M.T.); (S.T.E.); (K.H.C.); (M.A.J.); (M.A.I.A.); (A.S.M.A.R.)
| | - Shahenur Alam Sakib
- Department of Theoretical and Computational Chemistry, University of Dhaka, Dhaka 1000, Bangladesh;
| | - Saida Tasnim Etu
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh; (T.A.B.); (N.B.); (A.M.T.); (S.T.E.); (K.H.C.); (M.A.J.); (M.A.I.A.); (A.S.M.A.R.)
| | - Kamrul Hasan Chowdhury
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh; (T.A.B.); (N.B.); (A.M.T.); (S.T.E.); (K.H.C.); (M.A.J.); (M.A.I.A.); (A.S.M.A.R.)
| | - Mifta Ahmed Jyoti
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh; (T.A.B.); (N.B.); (A.M.T.); (S.T.E.); (K.H.C.); (M.A.J.); (M.A.I.A.); (A.S.M.A.R.)
| | - Md. Arfin Ibn Aziz
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh; (T.A.B.); (N.B.); (A.M.T.); (S.T.E.); (K.H.C.); (M.A.J.); (M.A.I.A.); (A.S.M.A.R.)
| | - A.S.M. Ali Reza
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh; (T.A.B.); (N.B.); (A.M.T.); (S.T.E.); (K.H.C.); (M.A.J.); (M.A.I.A.); (A.S.M.A.R.)
| | - Elisabetta Caiazzo
- Department of Pharmacy, School of Medicine, University of Naples Federico II via Domenico Montesano, 49 80131 Naples, Italy; (E.C.); (B.R.)
| | - Barbara Romano
- Department of Pharmacy, School of Medicine, University of Naples Federico II via Domenico Montesano, 49 80131 Naples, Italy; (E.C.); (B.R.)
| | - Syed Mohammed Tareq
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chittagong 4318, Bangladesh; (T.A.B.); (N.B.); (A.M.T.); (S.T.E.); (K.H.C.); (M.A.J.); (M.A.I.A.); (A.S.M.A.R.)
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
| | - Raffaele Capasso
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
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9
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Wang YH, Tian JS, Tan PW, Cao Q, Zhang XX, Cao ZY, Zhou F, Wang X, Zhou J. Regiodivergent Intramolecular Nucleophilic Addition of Ketimines for the Diverse Synthesis of Azacycles. Angew Chem Int Ed Engl 2019; 59:1634-1643. [PMID: 31755631 DOI: 10.1002/anie.201910864] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 11/01/2019] [Indexed: 12/15/2022]
Abstract
Azacycles such as indoles and tetrahydroquinolines are privileged structures in drug development. Reported here is an unprecedented regiodivergent intramolecular nucleophilic addition reaction of imines as a flexible approach to access N-functionalized indoles and tetrahydroquinolines, by the control of reaction at the N-terminus and C-terminus, respectively. Using ketimines derived from 2-(2-nitroethyl)anilines with isatins or α-ketoesters, the regioselective N-attack reaction gives N-functionalized indoles, while the catalytic enantioselective C-attack reaction affords chiral tetrahydroquinolines featuring an α-tetrasubstituted stereocenter. Mechanistic studies reveal that hydrogen-bonding interactions may greatly facilitate such unusual N-attack reactions of imines. The utility of this protocol is highlighted by the catalytic enantioselective formal synthesis of (-)-psychotrimine, and the construction of various fused aza-heterocycles.
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Affiliation(s)
- Yu-Hui Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, China.,Innovation Research Institute of Traditional Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Jun-Song Tian
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, China
| | - Peng-Wei Tan
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, China
| | - Qiang Cao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, China
| | - Xue-Xin Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, China
| | - Zhong-Yan Cao
- College of chemical engineering, Zhejiang university of technology, Chaowang road, 18N, Hangzhou, 310014, P. R. China
| | - Feng Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, China
| | - Xin Wang
- College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, P. R. China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P. R. China
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10
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Wang Y, Tian J, Tan P, Cao Q, Zhang X, Cao Z, Zhou F, Wang X, Zhou J. Regiodivergent Intramolecular Nucleophilic Addition of Ketimines for the Diverse Synthesis of Azacycles. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yu‐Hui Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 N. Zhongshan Road Shanghai 200062 China
- Innovation Research Institute of Traditional Chinese Medicine (IRI) Shanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Jun‐Song Tian
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 N. Zhongshan Road Shanghai 200062 China
| | - Peng‐Wei Tan
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 N. Zhongshan Road Shanghai 200062 China
| | - Qiang Cao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 N. Zhongshan Road Shanghai 200062 China
| | - Xue‐Xin Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 N. Zhongshan Road Shanghai 200062 China
| | - Zhong‐Yan Cao
- College of chemical engineering Zhejiang university of technology Chaowang road, 18N Hangzhou 310014 P. R. China
| | - Feng Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 N. Zhongshan Road Shanghai 200062 China
| | - Xin Wang
- College of Chemistry Sichuan University Chengdu Sichuan 610064 P. R. China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 N. Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 P. R. China
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11
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Zhang GY, Peng Y, Xue J, Fan YH, Deng QH. Copper-catalyzed nitrene transfer/cyclization cascade to synthesize 3a-nitrogenous furoindolines and pyrroloindolines. Org Chem Front 2019. [DOI: 10.1039/c9qo01124b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Copper-catalyzed nitrene transfer for amination/cyclization of tryptophols and tryptamines to generate the corresponding indole alkaloids in good to excellent yields was successfully developed.
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Affiliation(s)
- Guang-Yi Zhang
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- P. R. China
| | - Yi Peng
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- P. R. China
| | - Jing Xue
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- P. R. China
| | - Yan-Hui Fan
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- P. R. China
| | - Qing-Hai Deng
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai 200234
- P. R. China
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12
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Hajra S, Maity S, Roy S, Das D. Controlling the regioselectivity of the ring opening of spiro-epoxyoxindoles for efficient synthesis of C(3)–N(1′)-bisindoles and C(3)–N(1′)-diindolylmethane. Org Biomol Chem 2019; 17:7747-7759. [DOI: 10.1039/c9ob01249d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A strategy for the construction of both C(3)–N(1′) bisindoles and C(3)–N(1′) diindolylmethane has been explored via tuning of the nucleophilicity of indoline/indole to spiro-epoxyoxindole.
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Affiliation(s)
- Saumen Hajra
- Centre of Biomedical Research
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus
- Lucknow 226014
- India
| | - Subrata Maity
- Centre of Biomedical Research
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus
- Lucknow 226014
- India
- Department of Chemistry
| | - Sayan Roy
- Centre of Biomedical Research
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus
- Lucknow 226014
- India
| | - Dhiraj Das
- Dept. of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Manauli PO 140306
- India
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13
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Liu XL, Yue J, Chen S, Liu HH, Yang KM, Feng TT, Zhou Y. Thermal-mediated catalyst-free heterolytic cleavage of 3-halooxindoles: rapid access to 3-functionalized-2-oxindoles. Org Chem Front 2019. [DOI: 10.1039/c8qo01222a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein a previously unreported catalyst-free SN1 reaction of the 3-halooxindoles to build 3-functionalized-2-oxindoles is described.
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Affiliation(s)
- Xiong-Li Liu
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
| | - Jing Yue
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Shuang Chen
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Huan-Huan Liu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Kai-Mo Yang
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Ting-Ting Feng
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
| | - Ying Zhou
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
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14
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Muthusamy S, Balasubramani A, Suresh E. Boron Trifluoride Catalyzed Divergent Synthesis of 3-Alkenyl-3-amino-2-oxindoles and Spiro-indeneindolones from Propargylic Alcohols. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801106] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
| | | | - Eringathodi Suresh
- CSIR-Central Salt & Marine Chemicals Research Institute; Bhavnagar- 364002 India
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15
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Tayu M, Higuchi K, Kawasaki T. Functionalizations of Indoles by Intermolecular Interrupted Pummerer Reaction. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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16
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Freckleton M, Baeza A, Benavent L, Chinchilla R. Asymmetric Organocatalytic Electrophilic Heterofunctionalization of Oxindoles. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800146] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Megan Freckleton
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Alejandro Baeza
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Llorenç Benavent
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Rafael Chinchilla
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
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17
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Suo JJ, Liu W, Du J, Ding CH, Hou XL. Diastereo- and Enantioselective Palladium-Catalyzed Dearomative [3+2] Cycloaddition of 3-Nitroindoles. Chem Asian J 2018; 13:959-963. [DOI: 10.1002/asia.201800133] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/02/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Jia-Jia Suo
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- University of Chinese Academy of Sciences; Beijing China
| | - Wei Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Juan Du
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- University of Chinese Academy of Sciences; Beijing China
| | - Chang-Hua Ding
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Xue-Long Hou
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences.; China
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18
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Zhang JQ, Tong F, Sun BB, Fan WT, Chen JB, Hu D, Wang XW. Pd-Catalyzed Asymmetric Dearomative Cycloaddition for Construction of Optically Active Pyrroloindoline and Cyclopentaindoline Derivatives: Access to 3a-Aminopyrroloindolines. J Org Chem 2018; 83:2882-2891. [DOI: 10.1021/acs.joc.8b00046] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Jun-Qi Zhang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Feifei Tong
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Bing-Bing Sun
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Wei-Tai Fan
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jun-Bo Chen
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Dandan Hu
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xing-Wang Wang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, P. R. China
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19
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Yang HM, Zhang HM, Zhang YK, Liao PN, Chen YG. Compounds from the Twigs and Leaves of Psychotria prainii. Chem Nat Compd 2018. [DOI: 10.1007/s10600-018-2289-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Zhou CX, Yu YE, Sheng R, Mo JX, Huang M, Ouyang L, Gan LS. Cimicifoetones A and B, Dimeric Prenylindole Alkaloids as Black Pigments of Cimicifuga foetida. Chem Asian J 2017; 12:1277-1281. [PMID: 28393490 DOI: 10.1002/asia.201700348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 09/04/2017] [Indexed: 02/05/2023]
Abstract
Two dimeric prenylindole alkaloids with a unique indole-benzoindolequinone skeleton, cimicifoetones A (1) and B (2), were isolated as black pigments from the rhizomes of Cimicifuga foetida. The structures were elucidated by spectroscopic methods including HRMS and 2D NMR, as well as single-crystal X-ray diffraction and computational chemical modeling techniques. Cimicifoetones A and B represented the first examples of dimeric indole alkaloids generated through [4+2] Diels-Alder cycloaddition between the prenyl side chain in one 3-prenylindole and the aromatic ring in another. The two compounds showed promising anti-proliferative activity on seven tumor cell lines with IC50 values in the range of 1.36-21.09 μm. Flow cytometric and western blot analysis revealed that compound 2 induced cell apoptosis via death receptor-mediated extrinsic and mitochondrial-mediated intrinsic pathways.
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Affiliation(s)
- Chang-Xin Zhou
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Yu-E Yu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Rong Sheng
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Jian-Xia Mo
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Min Huang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, China
| | - Liang Ouyang
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 1# Keyuan 4th Road, High-tech Zone, Chengdu, 610041, China
| | - Li-She Gan
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
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21
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Dev K, Ramakrishna E, Maurya SW, Siddiqui IR, Kant R, Maurya R. Ugi three-component reaction of alcohols, amines and isocyanides: A new approach to the synthesis of cyclic amidines. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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13C-NMR Spectral Data of Alkaloids Isolated from Psychotria Species (Rubiaceae). Molecules 2017; 22:molecules22010103. [PMID: 28085077 PMCID: PMC6155581 DOI: 10.3390/molecules22010103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/09/2016] [Accepted: 12/28/2016] [Indexed: 12/02/2022] Open
Abstract
The genus Psychotria (Rubiaceae) comprises more than 2000 species, mainly found in tropical and subtropical forests. Several studies have been conducted concerning their chemical compositions, showing that this genus is a potential source of alkaloids. At least 70 indole alkaloids have been identified from this genus so far. This review aimed to compile 13C-NMR data of alkaloids isolated from the genus Psychotria as well as describe the main spectral features of different skeletons.
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23
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Mishra NK, Jeon M, Oh Y, Jo H, Park J, Han S, Sharma S, Han SH, Jung YH, Kim IS. Site-selective Cp*Rh(iii)-catalyzed C–H amination of indolines with anthranils. Org Chem Front 2017. [DOI: 10.1039/c6qo00714g] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The pyrimidinyl-directed C–H functionalization of indolines with anthranils as amination sources under rhodium(iii) catalysis is described to afford a range of C7-aminated indoline derivatives with excellent site-selectivity and functional group compatibility.
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Affiliation(s)
| | - Mijin Jeon
- School of Pharmacy
- Sungkyunkwan University
- Suwon 16419
- Republic of Korea
| | - Yongguk Oh
- School of Pharmacy
- Sungkyunkwan University
- Suwon 16419
- Republic of Korea
| | - Hyeim Jo
- School of Pharmacy
- Sungkyunkwan University
- Suwon 16419
- Republic of Korea
| | - Jihye Park
- School of Pharmacy
- Sungkyunkwan University
- Suwon 16419
- Republic of Korea
| | - Sangil Han
- School of Pharmacy
- Sungkyunkwan University
- Suwon 16419
- Republic of Korea
| | - Satyasheel Sharma
- School of Pharmacy
- Sungkyunkwan University
- Suwon 16419
- Republic of Korea
| | - Sang Hoon Han
- School of Pharmacy
- Sungkyunkwan University
- Suwon 16419
- Republic of Korea
| | - Young Hoon Jung
- School of Pharmacy
- Sungkyunkwan University
- Suwon 16419
- Republic of Korea
| | - In Su Kim
- School of Pharmacy
- Sungkyunkwan University
- Suwon 16419
- Republic of Korea
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24
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Lian XL, Meng J, Han ZY. Ru(II)/Organo Relay Catalytic Three-Component Reaction of 3-Diazooxindoles, Amines, and Nitroalkene: Formal Synthesis of (−)-Psychotrimine. Org Lett 2016; 18:4270-3. [DOI: 10.1021/acs.orglett.6b02019] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiao-Lei Lian
- Hefei National Laboratory
for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Jing Meng
- Hefei National Laboratory
for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Zhi-Yong Han
- Hefei National Laboratory
for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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25
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Liu L, Song CW, Khan A, Li XN, Yang XW, Cheng GG, Liu YP, Luo XD. A potent antibacterial indole alkaloid from Psychotria pilifera. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2016; 18:798-803. [PMID: 26963582 DOI: 10.1080/10286020.2016.1158710] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 02/23/2016] [Indexed: 06/05/2023]
Abstract
A new strychnine alkaloid, 16,17,19,20-tetrahydro-2,16-dehydro-18-deoxyisostrychnine (1), and fourteen known alkaloids were isolated from the leaves of Psychotria pilifera. Their structures were identified on the basis of extensive spectroscopic analysis, as well as by comparison with the reported spectroscopic data. The new alkaloid (1) exhibited potent antibacterial activity against Escherichia coli, equivalent to cefotaxime with MIC value of 0.781 μg/ml.
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Affiliation(s)
- Lu Liu
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- c University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Chang-Wei Song
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Afsar Khan
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
- b Department of Chemistry , COMSATS Institute of Information Technology , Abbottabad 22060 , Pakistan
| | - Xiao-Ning Li
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Xing-Wei Yang
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Gui-Guang Cheng
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Ya-Ping Liu
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
| | - Xiao-Dong Luo
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
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26
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27
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Yang H, Zhang H, Yang C, Chen Y. Chemical Constituents of Plants from the GenusPsychotria. Chem Biodivers 2016; 13:807-20. [DOI: 10.1002/cbdv.201500259] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 11/11/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Hongmei Yang
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 P. R. China
| | - Hongmei Zhang
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 P. R. China
| | - Caiqiong Yang
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 P. R. China
| | - Yegao Chen
- School of Chemistry and Chemical Engineering; Yunnan Normal University; Kunming 650500 P. R. China
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28
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Kumar M, Kaur BP, Chimni SS. 2,4-Dinitrophenol-Catalyzed α-C(sp3
)−H and C(sp)−H Bond Functionalization of Cyclic Amines and Alkynes: Highly Regio-/Diastereoselective Synthesis of α-Alkynyl-3-Amino-2-Oxindoles. Chemistry 2016; 22:9948-52. [DOI: 10.1002/chem.201601222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 04/14/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Mukesh Kumar
- Department of Chemistry; U.G.C. Centre of Advance Studies in Chemistry; Guru Nanak Dev University Amritsar; 143005 Amritsar India
| | - Banni P. Kaur
- Department of Chemistry; U.G.C. Centre of Advance Studies in Chemistry; Guru Nanak Dev University Amritsar; 143005 Amritsar India
| | - Swapandeep S Chimni
- Department of Chemistry; U.G.C. Centre of Advance Studies in Chemistry; Guru Nanak Dev University Amritsar; 143005 Amritsar India
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29
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Synthesis of 3-aminooxindoles via acid-promoted cyclization of α-imino-N-arylamides and α-azido-N-arylamides. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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de Carvalho A, de Carvalho M, Braz-Filho R, Vieira I. Psychotria Genus. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2016. [DOI: 10.1016/b978-0-444-63602-7.00007-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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31
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Rao KS, Ramesh P, Chowhan LR, Trivedi R. Asymmetric Mannich reaction: highly enantioselective synthesis of 3-amino-oxindoles via chiral squaramide based H-bond donor catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra16877a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile formation of 3-aminooxindole derivatives from the reaction of 1,3-diketones with isatin (N-Boc) via an asymmetric Mannich reaction catalyzed by chiral cinchona alkaloid based squaramide containing H-bond donor catalysts.
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Affiliation(s)
- Kadiyala Srinivasa Rao
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Pambala Ramesh
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - L. Raju Chowhan
- School of Chemical Sciences
- Central University of Gujarat
- Gandhinagar-382030
- India
| | - Rajiv Trivedi
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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32
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Tayu M, Ishizaki T, Higuchi K, Kawasaki T. DMSO/Tf2O-mediated cross-coupling of tryptamine with substituted aniline to access C3a-N1'-linked pyrroloindoline alkaloids. Org Biomol Chem 2015; 13:3863-5. [PMID: 25714899 DOI: 10.1039/c5ob00190k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cross-coupling of tryptamine with substituted aniline to access C3a-nitrogen-linked pyrroloindolines has been developed via the consecutive cyclization of tryptamine with DMSO/Tf2O and the substitution of 3a-pyrroloindolylthionium intermediate with aniline. The use of 2,3-dihydrotryptamine instead of aniline enabled easy access to 3a-(1-indolyl)pyrroloindoline and the concise synthesis of C3a-N1'-linked pyrroloindoline alkaloid (±)-psychotriasine was accomplished.
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Affiliation(s)
- Masanori Tayu
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan.
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33
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Liu C, Yi JC, Zheng ZB, Tang Y, Dai LX, You SL. Enantioselective Synthesis of 3a-Amino-Pyrroloindolines by Copper-Catalyzed Direct Asymmetric Dearomative Amination of Tryptamines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508570] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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34
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Liu C, Yi JC, Zheng ZB, Tang Y, Dai LX, You SL. Enantioselective Synthesis of 3a-Amino-Pyrroloindolines by Copper-Catalyzed Direct Asymmetric Dearomative Amination of Tryptamines. Angew Chem Int Ed Engl 2015; 55:751-4. [PMID: 26603145 DOI: 10.1002/anie.201508570] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 11/04/2015] [Indexed: 01/10/2023]
Abstract
A direct asymmetric dearomative amination of tryptamines with O-(2,4-dinitrophenyl)hydroxylamine (DPH) was achieved using CuBr-bisoxazoline complex as a catalyst, affording 3a-amino-pyrroloindolines in good to excellent enantioselectivity under mild reaction conditions. Furthermore, the synthetic value of this method was demonstrated in the total synthesis of (-)-psychotriasine in a highly concise manner.
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Affiliation(s)
- Chuan Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (China)
| | - Ji-Cheng Yi
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (China)
| | - Zhong-Bo Zheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (China)
| | - Yong Tang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (China). .,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin (China).
| | - Li-Xin Dai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (China)
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (China). .,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin (China).
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35
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Berger A, Kostyan MK, Klose SI, Gastegger M, Lorbeer E, Brecker L, Schinnerl J. Loganin and secologanin derived tryptamine-iridoid alkaloids from Palicourea crocea and Palicourea padifolia (Rubiaceae). PHYTOCHEMISTRY 2015; 116:162-169. [PMID: 26043882 DOI: 10.1016/j.phytochem.2015.05.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 03/16/2015] [Accepted: 05/22/2015] [Indexed: 06/04/2023]
Abstract
During comparative analysis on Palicourea species from Costa Rica, two unusual loganin derived tryptamine-iridoid alkaloids were isolated from an accession of Palicourea crocea. Besides the already known brachycerine (2), palicroceaine (1) features a novel hexacyclic backbone. A second provenance, however, yielded strictosidinic acid (3), belonging to the more common secologanin derived tryptamine-iridoid alkaloids, such as those found in Palicourea padifolia. From this species, strictosidine (4), lyaloside (5) and its derivative (E)-O-(6')-(4″-hydroxy-3″,5″-dimethoxy)-cinnamoyl lyaloside (6) could be isolated. A herbarium specimen-based screening was performed, indicating some degree of regional differentiation in alkaloid content and biosynthetic pathways within the widespread and variable Pal. crocea. It further shows its differentiation from the related strictosidine containing Palicourea croceoides. The occurrence of loganin derived tryptamine-iridoid alkaloids in Pal. crocea, Psychotria brachyceras and Psychotria brachypoda, all putatively unrelated members of the Palicourea s.l. clade, is a noteworthy exception within the genus, otherwise largely characterized by secologanin-derived tryptamine-iridoid alkaloids.
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Affiliation(s)
- Andreas Berger
- Chemodiversity Research Group, Division of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, A-1030 Vienna, Austria
| | - Maria Katharina Kostyan
- Chemodiversity Research Group, Division of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, A-1030 Vienna, Austria
| | - Simon Immo Klose
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria
| | - Michael Gastegger
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria
| | - Eberhard Lorbeer
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria
| | - Lothar Brecker
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria
| | - Johann Schinnerl
- Chemodiversity Research Group, Division of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, A-1030 Vienna, Austria.
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36
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Li Q, Xia T, Yao L, Deng H, Liao X. Enantioselective and diastereoselective azo-coupling/iminium-cyclizations: a unified strategy for the total syntheses of (-)-psychotriasine and (+)-pestalazine B. Chem Sci 2015; 6:3599-3605. [PMID: 29511522 PMCID: PMC5659145 DOI: 10.1039/c5sc00338e] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 03/25/2015] [Indexed: 11/21/2022] Open
Abstract
We report a unified strategy for the total syntheses of (-)-psychotriasine and (+)-pestalazine B based on the advanced intermediates of 3α-amino-hexahydropyrrolo[2,3-b]indole. To construct these structural motifs, a cascade reaction involving a BINOL-derived phosphoric anion-paired catalyst for enantioselective or diastereoselective azo-coupling/iminium-cyclizations was developed. The remaining key steps of the synthesis involve a sterically hindered amination via hypervalent iodine reagents and the Larock annulation. These transformations enable a general approach to the syntheses of indole alkaloids containing a 3α-amino-hexahydropyrrolo[2,3-b]indole motif and could be further applied to build a natural product-based library.
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Affiliation(s)
- Qi Li
- Tsinghua-Peking Centre for Life Sciences , Beijing 100084 , China.,Department of Pharmacology and Pharmaceutical Sciences , School of Medicine , Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases , Tsinghua University , Beijing 100084 , China .
| | - Tingting Xia
- Department of Pharmacology and Pharmaceutical Sciences , School of Medicine , Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases , Tsinghua University , Beijing 100084 , China .
| | - Licheng Yao
- Department of Pharmacology and Pharmaceutical Sciences , School of Medicine , Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases , Tsinghua University , Beijing 100084 , China .
| | - Haiteng Deng
- MOE Key Laboratory of Bioinformatics , School of Life Sciences , Tsinghua University , Beijing 100084 , China .
| | - Xuebin Liao
- Department of Pharmacology and Pharmaceutical Sciences , School of Medicine , Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases , Tsinghua University , Beijing 100084 , China .
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37
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Zhao K, Shu T, Jia J, Raabe G, Enders D. An organocatalytic Mannich/denitration reaction for the asymmetric synthesis of 3-ethylacetate-substitued 3-amino-2-oxindoles: formal synthesis of AG-041R. Chemistry 2015; 21:3933-6. [PMID: 25630891 DOI: 10.1002/chem.201406422] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Indexed: 11/06/2022]
Abstract
The highly enantioselective organocatalytic addition of ethyl nitroacetate to isatin-derived N-Boc ketimines (Boc = tert-butoxycarbonyl), followed by the removal of the nitro group, is described. The scalable reaction sequence leads to the title compounds as important intermediates of pyrroloindoline alkaloids and related drugs in excellent yields and enantioselectivities. The synthesis of the hexahydrofurano[2,3-b]indole skeleton, the spirocarbamate oxindole unit, and the formal synthesis of AG-041R have been carried out to demonstrate the synthetic utility of this protocol.
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Affiliation(s)
- Kun Zhao
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen (Germany), Fax: (+49) 241-809-2127 http://www.oc.rwth-aachen.de/akenders/AKEN_D.HTM
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38
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Shen Z, Xia Z, Zhao H, Hu J, Wan X, Lai Y, Zhu C, Xie W. Synthesis of naked amino-pyrroloindoline via direct aminocyclization of tryptamine. Org Biomol Chem 2015; 13:5381-4. [DOI: 10.1039/c5ob00546a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Direct access to unprotected amino-pyrroloindolineviaaminocyclization of tryptamine and tryptophan catalyzed by Rh2(esp)2has been described usingO-(2,4-dinitrophenyl)hydroxylamine (DPH) as the nitrogen source.
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Affiliation(s)
- Zhigao Shen
- State Key Laboratory of Natural Medicines
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases
- Center of Drug Discovery
- China Pharmaceutical University
- Nanjing 210009
| | - Zilei Xia
- State Key Laboratory of Natural Medicines
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases
- Center of Drug Discovery
- China Pharmaceutical University
- Nanjing 210009
| | - Huijun Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Jiadong Hu
- State Key Laboratory of Natural Medicines
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases
- Center of Drug Discovery
- China Pharmaceutical University
- Nanjing 210009
| | - Xiaolong Wan
- State Key Laboratory of Bioorganic & Natural Products Chemistry
- Shanghai Institute of Organic Chemistry Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Yisheng Lai
- State Key Laboratory of Natural Medicines
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases
- Center of Drug Discovery
- China Pharmaceutical University
- Nanjing 210009
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Weiqing Xie
- State Key Laboratory of Bioorganic & Natural Products Chemistry
- Shanghai Institute of Organic Chemistry Chinese Academy of Sciences
- Shanghai 200032
- China
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
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39
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Herraiz-Cobo J, Albericio F, Álvarez M. The Larock Reaction in the Synthesis of Heterocyclic Compounds. ADVANCES IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1016/bs.aihch.2015.04.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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40
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Chen JP, Chen WW, Li Y, Xu MH. A highly diastereoselective Friedel–Crafts reaction of indoles with isatin-derived N-sulfinyl ketimines towards the efficient synthesis of chiral tetrasubstituted 3-indolyl-3-aminooxindoles. Org Biomol Chem 2015; 13:3363-70. [DOI: 10.1039/c5ob00063g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A Lewis acid promoted highly diastereoselective asymmetric Friedel–Crafts alkylation of indoles with isatin-derived N-tert-butanesulfinyl ketimines is described.
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Affiliation(s)
- Jian-Ping Chen
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Wen-Wen Chen
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Yi Li
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Ming-Hua Xu
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
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41
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Babu KN, Kinthada LK, Ghosh S, Bisai A. Highly chemoselective synthesis of dimeric 2-oxindoles with a C-3/C-5′ linkage via Friedel–Crafts alkylations of 2-oxindoles with 3-hydroxy-2-oxindoles. Org Biomol Chem 2015; 13:10641-55. [DOI: 10.1039/c5ob01670c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An expeditious approach to a variety of dimeric 2-oxindoles with a C-3/C-5′ linkage sharing an all-carbon quaternary center at the pseudobenzylic position has been developed via Lewis acid-catalyzed F–C alkylations.
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Affiliation(s)
- K. Naresh Babu
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Lakshmana K. Kinthada
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Santanu Ghosh
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Alakesh Bisai
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
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42
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George J, Sridhar B, Reddy BVS. First example of quinine-squaramide catalyzed enantioselective addition of diphenyl phosphite to ketimines derived from isatins. Org Biomol Chem 2014; 12:1595-602. [PMID: 24469542 DOI: 10.1039/c3ob42026d] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A highly enantioselective addition of diphenyl phosphite to ketimines derived from isatins has been achieved using a bifunctional organocatalyst, quinine-derived squaramide catalyst. This method works efficiently with several ketimines to produce the corresponding 3-amino-2-oxoindolin-3-yl-phosphonates in excellent yields with high enantioselectivity (up to 98% ee).
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Affiliation(s)
- Jimil George
- Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.
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43
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Chen D, Xu MH. Lewis acid promoted diastereoselective addition of TMSCN and TMSCF3 to isatin-derived N-sulfinyl ketimines: synthesis of optically active tetrasubstituted 3-aminooxindoles. J Org Chem 2014; 79:7746-51. [PMID: 25045777 DOI: 10.1021/jo501360g] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A practical and efficient method for preparation of highly enantiomerically enriched 3-cyano-3-aminooxindoles and 3-trifluoromethyl-3-aminooxindoles with up to 99% optical purity by a Lewis acid promoted diastereoselective Strecker reaction and trifluoromethylation of isatin-derived N-tert-butanesulfinyl ketimines has been developed. This protocol allows direct use of N-free isatin substrates under mild conditions.
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Affiliation(s)
- Diao Chen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, China
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44
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Lu Q, Wang J, Luo J, Wang X, Shan S, Kong L. A new acorane sesquiterpene from the aerial parts of Psychotria yunnanensis. Nat Prod Res 2014; 28:1659-63. [DOI: 10.1080/14786419.2014.934234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Qinpei Lu
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing210009, People's Republic of China
| | - Junsong Wang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing210009, People's Republic of China
| | - Jun Luo
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing210009, People's Republic of China
| | - Xiaobing Wang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing210009, People's Republic of China
| | - Siming Shan
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing210009, People's Republic of China
| | - Lingyi Kong
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing210009, People's Republic of China
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45
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Zhang H, Kang H, Hong L, Dong W, Li G, Zheng X, Wang R. Construction of the N1-C3 linkage stereogenic centers by catalytic asymmetric amination reaction of 3-bromooxindoles with indolines. Org Lett 2014; 16:2394-7. [PMID: 24725065 DOI: 10.1021/ol5007423] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The catalytic asymmetric amination reaction of 3-bromooxindoles with indolines for the construction of the N1-C3 linkage stereogenic centers has been realized for the first time. Moreover, the racemic substrates (3-substituted indolines) were also applicable under the same chiral conditions. The newly developed method conveniently led to a formal synthesis of (+)-psychotrimine.
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Affiliation(s)
- Hailong Zhang
- School of Life Sciences, Key Laboratory of Preclinical Study for New Drug of Gansu Province, Lanzhou University Lanzhou 730000, P.R. China
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46
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Kuttruff CA, Eastgate MD, Baran PS. Natural product synthesis in the age of scalability. Nat Prod Rep 2014; 31:419-32. [DOI: 10.1039/c3np70090a] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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47
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Liu Y, Wang JS, Wang XB, Kong LY. Absolute configuration study of a new dimeric indole alkaloid from the leaves and twigs of Psychotria henryi. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2014; 16:29-33. [PMID: 24354881 DOI: 10.1080/10286020.2013.870996] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 11/27/2013] [Indexed: 06/03/2023]
Abstract
From the leaves and twigs of Psychotria henryi, a new dimeric indole alkaloid, named psychohenin, was isolated, whose structure was elucidated on the basis of extensive spectroscopic analysis. The absolute configuration of psychohenin was determined by a single-crystal X-ray diffraction study using a mirror Cu Kα radiation.
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Affiliation(s)
- Ye Liu
- a Department of Natural Medicinal Chemistry , State Key Laboratory of Natural Medicines, China Pharmaceutical University , Nanjing , 210009 , China
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48
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Iwabuchi Y, Shibuta T, Sato S, Shibuya M, Kanoh N, Taniguchi T, Monde K. Enantioselective Intramolecular Aza-Spiroannulation onto Benzofurans Using Chiral Rhodium Catalysis. HETEROCYCLES 2014. [DOI: 10.3987/com-14-12941] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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49
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Repka LM, Reisman SE. Recent developments in the catalytic, asymmetric construction of pyrroloindolines bearing all-carbon quaternary stereocenters. J Org Chem 2013; 78:12314-20. [PMID: 24295135 PMCID: PMC3905788 DOI: 10.1021/jo4017953] [Citation(s) in RCA: 159] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Pyrroloindoline alkaloids constitute a large family of natural products that has inspired the development of an impressive array of new reactions to prepare the key heterocyclic motif. This synopsis will address catalytic, asymmetric reactions developed to synthesize pyrroloindolines bearing C3a all-carbon quaternary stereocenters. The methods described herein include both transition-metal-catalyzed and organocatalyzed reactions that have been demonstrated to be suitable for the synthesis of the pyrroloindoline framework.
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Affiliation(s)
- Lindsay M. Repka
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA)
| | - Sarah E. Reisman
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA)
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50
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Highly Enantioselective Bromocyclization of Tryptamines and Its Application in the Synthesis of (−)-Chimonanthine. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306774] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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