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Yang J, Song Y, Tang MC, Li M, Deng J, Wong NK, Ju J. Genome-Directed Discovery of Tetrahydroisoquinolines from Deep-Sea Derived Streptomyces niveus SCSIO 3406. J Org Chem 2021; 86:11107-11116. [PMID: 33770435 DOI: 10.1021/acs.joc.1c00123] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A genome-directed discovery strategy to identify new tetrahydroisoquinolines (THIQs) was applied to deep-sea derived Streptomyces niveus SCSIO 3406; 11 THIQs were found representing three THIQ classes. Known aclidinomycins A (1) and B (2) were isolated along with nine new compounds, aclidinomycins C-K (3-11). The structures were elucidated using extensive spectroscopic analyses and single-crystal X-ray diffraction methods. The core skeleton of compounds 6-9 contains a fused tetrahydropyran (THP) as an integral part of a distinct type of 6/6/6/6/5/5 polycyclic motif. This is the first report of such a system. Beyond their discovery, we also report here a proposed biosynthetic route to these interesting natural products as well as a preliminary survey of their antimicrobial activities.
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Affiliation(s)
- Jiafan Yang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), No. 1119, Haibin Road, Nansha District, Guangzhou 511458, China
| | - Yongxiang Song
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), No. 1119, Haibin Road, Nansha District, Guangzhou 511458, China
| | - Man-Cheng Tang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Mingzhe Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Junwei Deng
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Nai-Kei Wong
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Jianhua Ju
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), No. 1119, Haibin Road, Nansha District, Guangzhou 511458, China
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Yang L, Hou L, Li H, Li W. Antibiotic angucycline derivatives from the deepsea-derived Streptomyces lusitanus. Nat Prod Res 2019; 34:3444-3450. [PMID: 30835571 DOI: 10.1080/14786419.2019.1577835] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A new (1, grincamycin L) and two known (2 and 3) angucycline derivatives were obtained from the fermentation of deepsea-derived Streptomyces lusitanus OUCT16-27 strain. The structures of 1-3 were elucidated based on the LC-MS analysis together with 1D and 2D NMR data assignment. In the antibacterial assay, 1 and 2 exhibited moderate growth inhibitions against multi-drug resistant (MDR) strains of E. faecium, E. faecalis and S. aureus with the minimum inhibitory concentrations (MICs) of 3.12-6.25 µg/mL.
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Affiliation(s)
- Lu Yang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Lukuan Hou
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Huayue Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Wenli Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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Garner P, Kaniskan HÜ, Keyari CM, Weerasinghe L. Asymmetric [C + NC + CC] Coupling Entry to the Naphthyridinomycin Natural Product Family: Formal Total Synthesis of Cyanocycline A and Bioxalomycin β2. J Org Chem 2011; 76:5283-94. [DOI: 10.1021/jo200553g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - H. Ümit Kaniskan
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106-7078, United States
| | - Charles M. Keyari
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, United States
| | - Laksiri Weerasinghe
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, United States
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Ortín I, González JF, Cuesta EDL, Manguan-García C, Perona R, Avendaño C. Cytotoxicity mechanisms of pyrazino[1,2-b]isoquinoline-4-ones and SAR studies. Bioorg Med Chem 2009; 17:8040-7. [PMID: 19875300 DOI: 10.1016/j.bmc.2009.10.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Revised: 09/28/2009] [Accepted: 10/05/2009] [Indexed: 12/23/2022]
Abstract
The cytotoxicity showed by 1b, an interesting representant of the title compounds, for HT-29 human colon cancer cells (CI(50) value of 1.95 x 10(-7)M) has been related to the induced cell death at the G2 phase and not to DNA damage. This compound promotes the degradation of components of the G2/M checkpoint machinery, in particular cdc2, Cyclin B1 and Wee1, which represents a novel mechanism of cytotoxicity. Degradation of Wee1 seems to be mediated by proteasome activity but degradation of cdc2 has to occur through a different mechanism. The activity of 1b on G2 cell cycle components suggests that tumor cells that are arrested in G2/M by anticancer drugs like cisplatin could be targeted by compound 1b, increasing the apoptosis induction, and that their optimized analogs might be useful in the treatment of colon cancer through combination therapies with cisplatin or other anticancer drugs that affect the cytoskeleton integrity such as taxol and taxotere. SAR studies with compounds obtained by manipulation of the N(2) and C(4)-functional groups and the C(6)-chain of compound 1b have confirmed the importance of these structural features in the in vitro antitumor activity. Fused oxazolidine derivatives as compound 5 were inactive, and the lack of activity found in the replacement of the C(4)-lactam by a cyanoamine function, as in compounds 8-10, could be explained considering that their all-syn relative configuration makes them too stable to generate alkylating iminium species.
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Affiliation(s)
- Irene Ortín
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
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Olano C, Moss SJ, Braña AF, Sheridan RM, Math V, Weston AJ, Méndez C, Leadlay PF, Wilkinson B, Salas JA. Biosynthesis of the angiogenesis inhibitor borrelidin by Streptomyces parvulus Tü4055: insights into nitrile formation. Mol Microbiol 2005; 52:1745-56. [PMID: 15186422 DOI: 10.1111/j.1365-2958.2004.04090.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The 18-membered polyketide macrolide borrelidin exhibits a number of important biological activities, including potent angiogenesis inhibition. This has prompted two recent total syntheses as well as the cloning of the biosynthetic gene cluster from Streptomyces parvulus Tü4055. Borrelidin possesses some unusual structural characteristics, including a cyclopentane carboxylic acid moiety at C17 and a nitrile moiety at C12 of the macrocyclic ring. Nitrile groups are relatively rare in nature, and little is known of their biosynthesis during secondary metabolism. The nitrile group of borrelidin is shown here to arise from the methyl group of a methylmalonyl-CoA extender unit incorporated during polyketide chain extension. Insertional inactivation of two genes in the borrelidin gene cluster, borI (coding for a cytochrome P450 monooxygenase) and borJ (coding for an aminotransferase), generated borrelidin non-producing mutants. These mutants accumulated different compounds lacking the C12 nitrile moiety, with the product of the borI-minus mutant (12-desnitrile-12-methyl-borrelidin) possessing a methyl group and that of the borJ-minus mutant (12-desnitrile-12-carboxyl-borrelidin) a carboxyl group at C12. The former but not the latter was converted into borrelidin when biotransformed by an S. parvulus mutant that is deficient in the biosynthesis of the borrelidin starter unit. This suggests that 12-desnitrile-12-methyl-borrelidin is a competent biosynthetic intermediate, whereas the carboxylated derivative is a shunt metabolite. Bioconversion of 12-desnitrile-12-methyl-borrelidin into borrelidin was also achieved in a heterologous system co-expressing borI and borJ in Streptomyces albus J1074. This bioconversion was more efficient when borK, which is believed to encode a dehydrogenase, was simultaneously expressed with borI and borJ. On the basis of these findings, a pathway is proposed for the formation of the nitrile moiety during borrelidin biosynthesis.
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Affiliation(s)
- Carlos Olano
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, 33006 Oviedo, Spain
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Herberich B, Scott JD, Williams RM. Synthesis of a netropsin conjugate of a water-soluble epi-quinocarcin analogue: the importance of stereochemistry at nitrogen. Bioorg Med Chem 2000; 8:523-32. [PMID: 10732968 DOI: 10.1016/s0968-0896(99)00314-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The efficient synthesis of a water-soluble C11a-epi-analogue (6b) of quinocarcin is described. This substance, and a netropsin amide conjugate (8) lack the capacity to inflict oxidative damage on DNA due to the stereoelectronic geometry of their oxazolidine nitrogen atoms. The capacity of these substances to alkylate DNA through the generation of an iminium species has been examined. Both compounds were found to be unreactive as DNA alkylating agents. The results of this study are discussed in the context of previous proposals on the mode of action of this family of antitumor alkaloids.
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Affiliation(s)
- B Herberich
- Department of Chemistry, Colorado State University, Fort Collins 80523, USA
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Garner P, Cox PB, Anderson JT, Protasiewicz J, Zaniewski R. Use of Silicon-Based Tethers to Control Diastereofacial Selectivity in Azomethine Ylide Cycloadditions(1). J Org Chem 1997; 62:493-498. [PMID: 11671439 DOI: 10.1021/jo9609034] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel approach to controlling the diastereofacial selectivity of intramolecular dipolar cycloadditions of azomethine ylides (cf. 9 --> 8) by varying the structure a silicon-based tether is described. A correlation is found between the length of the tether dipolarophile conjugate (TDC) and the observed sense of diastereocontrol. Azomethine ylides incorporating longer [OSiPh(2)OCH(2)CH(2)OCOCH=CH(2)], [OSi(i-Pr)(2)OSi(i-Pr)(2)OCH(2)CH=CH(2)], and [OSiPh(2)OCH(2)CH=CH(2)] TDCs favor endo-si attack (14 --> 16, 19 --> 20, and 21 --> 22) while the shorter TDC [OSiR(2)CH(2)CH=CH(2)] leads to a reversal in selectivity favoring the endo-re product (23a,b --> 24a,b). Structures of the cycloadducts have been assigned on the basis of selected X-ray diffraction data in combination with chemical/spectral correlation experiments. The work described herein represents a conceptually new approach to stereocontrol and extends the use of silicon-based tethers in asymmetric synthesis.
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Affiliation(s)
- Philip Garner
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106-7078
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