1
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Liu M, Li S. Nitrile biosynthesis in nature: how and why? Nat Prod Rep 2024; 41:649-671. [PMID: 38193577 DOI: 10.1039/d3np00028a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Covering: up to the end of 2023Natural nitriles comprise a small set of secondary metabolites which however show intriguing chemical and functional diversity. Various patterns of nitrile biosynthesis can be seen in animals, plants, and microorganisms with the characteristics of both evolutionary divergence and convergence. These specialized compounds play important roles in nitrogen metabolism, chemical defense against herbivores, predators and pathogens, and inter- and/or intraspecies communications. Here we review the naturally occurring nitrile-forming pathways from a biochemical perspective and discuss the biological and ecological functions conferred by diversified nitrile biosyntheses in different organisms. Elucidation of the mechanisms and evolutionary trajectories of nitrile biosynthesis underpins better understandings of nitrile-related biology, chemistry, and ecology and will ultimately benefit the development of desirable nitrile-forming biocatalysts for practical applications.
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Affiliation(s)
- Mingyu Liu
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
| | - Shengying Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong 266237, China
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2
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Morrow AP, Smith MW. Total Synthesis of Psammaplysins A, M, O, and Q and Ceratinamide A. J Am Chem Soc 2024; 146:2913-2918. [PMID: 38253006 DOI: 10.1021/jacs.3c14120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
The psammaplysins are a unique class of brominated marine alkaloids bearing a signature 5/7-spiroisoxazoline-oxepine core linked to a variable tyramine-derived unit. Here, we report the total synthesis of several members of this family via a dipolar cycloaddition between an in situ generated nitrile oxide and an unusual seven-membered enediol diether dipolarophile. Carefully orchestrated oxidative transformation toward the fully functionalized spirocycle and direct coupling with tyramine-derived amines provides access to five representative family members, psammaplysins A, M, O, and Q and ceratinamide A, the latter four for the first time. Additionally, kinetic resolution of a late-stage intermediate enables the first asymmetric synthesis of (-)-psammaplysin A, thereby confirming its absolute configuration.
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Affiliation(s)
- Andrew P Morrow
- UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75390, United States
| | - Myles W Smith
- UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75390, United States
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3
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Paciorek J, Höfler D, Sokol KR, Wurst K, Magauer T. Total Synthesis of the Dihydrooxepine-Spiroisoxazoline Natural Product Psammaplysin A. J Am Chem Soc 2022; 144:19704-19708. [PMID: 36270001 PMCID: PMC9634798 DOI: 10.1021/jacs.2c10010] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Indexed: 11/29/2022]
Abstract
We report a general synthetic entry to dihydrooxepine-spiroisoxazoline (DOSI) natural products that culminated in the first racemic total synthesis of psammaplysin A. For the synthesis of the unique spirocyclic fragment we employed a strategy that features two key transformations: (1) a diastereoselective Henry reaction/cyclization sequence to access the C7 hydroxylated isoxazoline scaffold in one step and (2) a regioselective Baeyer-Villiger ring expansion to install the fully substituted dihydrooxepine and avoid the risk of a previously observed oxepine-arene oxide rearrangement. The overall synthesis proceeds in 13 steps from an inexpensive starting material.
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Affiliation(s)
- Jan Paciorek
- Institute
of Organic Chemistry and Center for Molecular Biosciences, Leopold-Franzens-University Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Denis Höfler
- Institute
of Organic Chemistry and Center for Molecular Biosciences, Leopold-Franzens-University Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Kevin Rafael Sokol
- Institute
of Organic Chemistry and Center for Molecular Biosciences, Leopold-Franzens-University Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Klaus Wurst
- Institute
of General, Inorganic & Theoretical Chemistry, Leopold-Franzens-University Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Thomas Magauer
- Institute
of Organic Chemistry and Center for Molecular Biosciences, Leopold-Franzens-University Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
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4
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Moniruzzaman M, Yano Y, Ono T, Imamura K, Shiota Y, Yoshizawa K, Hisaeda Y, Shimakoshi H. Electrochemical Synthesis of Cyanoformamides from Trichloroacetonitrile and Secondary Amines Mediated by the B 12 Derivative. J Org Chem 2021; 86:16134-16143. [PMID: 34137621 DOI: 10.1021/acs.joc.1c00837] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The B12 derivative, heptamethyl cobyrinate, -mediated electrochemical synthesis of cyanoformamides has been developed. Aerobic oxygenation of the carbon-centered radical initiated in situ generation of the reactive acyl chloride intermediate, which led to cyanoformamides in the presence of an amine. This one-pot and scalable synthetic method has been demonstrated with 41 examples up to 94% yields with 21 new compounds. The mechanism of electrolysis mediated by the B12 derivative has been proposed based on the DFT calculations.
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Affiliation(s)
- Mohammad Moniruzzaman
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Yoshio Yano
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Toshikazu Ono
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | | | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Yoshio Hisaeda
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Hisashi Shimakoshi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
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5
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Gao Y, Zhang Z, Li Z, Guo T, Zhu Y, Yao Z, Liu B, Li Y, Guo K. 4,5-Dioxo-imidazolinium Cation Activation of 1-Acyl-1-carbamoyl Oximes: Access to Cyanoformamides Using Dichloroimidazolidinedione. J Org Chem 2019; 85:1087-1096. [DOI: 10.1021/acs.joc.9b02992] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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6
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Lei LS, Xue CG, Xu XT, Jin DP, Wang SH, Bao W, Liang H, Zhang K, Asiri AM. The synthesis of cyanoformamides via a CsF-promoted decyanation/oxidation cascade of 2-dialkylamino-malononitriles. Org Biomol Chem 2019; 17:3723-3726. [DOI: 10.1039/c9ob00510b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The synthesis of cyanoformamides via a CsF-promoted decyanation/oxidation cascade of N,N-disubstituted aminomalononitriles.
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Affiliation(s)
- Lin-Sheng Lei
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Cao-Gen Xue
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xue-Tao Xu
- School of Chemical and Environmental Engineering
- Wuyi University
- Jiangmen 529020
- P. R. China
| | - Da-Ping Jin
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Shao-Hua Wang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
- School of Chemical and Environmental Engineering
| | - Wen Bao
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Huan Liang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Kun Zhang
- School of Chemical and Environmental Engineering
- Wuyi University
- Jiangmen 529020
- P. R. China
| | - Abdullah M. Asiri
- Chemistry Department
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
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7
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Yang J, Xiang D, Zhang R, Zhang N, Liang Y, Dong D. POCl3-Mediated Reaction of 1-Acyl-1-carbamoyl Oximes: A New Entry to Cyanoformamides. Org Lett 2015; 17:809-11. [DOI: 10.1021/ol503643p] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jiming Yang
- Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Dexuan Xiang
- Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Rui Zhang
- Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- Changzhou Institute of Energy Storage Materials & Devices, Changzhou, 213000, P. R. China
| | - Ning Zhang
- Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yongjiu Liang
- Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Dewen Dong
- Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- Changzhou Institute of Energy Storage Materials & Devices, Changzhou, 213000, P. R. China
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8
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Zhan Z, Cheng X, Zheng Y, Ma X, Wang X, Hai L, Wu Y. PhI(OAc)2-promoted metal-free oxidation of 2-oxoaldehydes: a facile one-pot synthesis of cyanoformamides. RSC Adv 2015. [DOI: 10.1039/c5ra14409d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
A novel, efficient and environmental method for the conversion of 2-oxoaldehydes into cyanoformamides with iodosobenzene diacetate as oxidant has been developed.
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Affiliation(s)
- Zhen Zhan
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Xu Cheng
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Yang Zheng
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Xiaojun Ma
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Xiaoyu Wang
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Li Hai
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Yong Wu
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
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9
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Shearman JW, Myers RM, Beale TM, Brenton JD, Ley SV. Total syntheses of the bromotyrosine-derived natural products ianthelline, 5-bromoverongamine and JBIR-44. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.07.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Lebouvier N, Jullian V, Desvignes I, Maurel S, Parenty A, Dorin-Semblat D, Doerig C, Sauvain M, Laurent D. Antiplasmodial activities of homogentisic acid derivative protein kinase inhibitors isolated from a Vanuatu marine sponge Pseudoceratina sp. Mar Drugs 2009; 7:640-53. [PMID: 20098604 PMCID: PMC2810230 DOI: 10.3390/md7040640] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 11/17/2009] [Accepted: 11/23/2009] [Indexed: 11/17/2022] Open
Abstract
As part of our search for new antimalarial drugs in South Pacific marine sponges, we have looked for inhibitors of Pfnek-1, a specific protein kinase of Plasmodium falciparum. On the basis of promising activity in a preliminary screening, the ethanolic crude extract of a new species of Pseudoceratina collected in Vanuatu was selected for further investigation. A bioassay-guided fractionation led to the isolation of a derivative of homogentisic acid [methyl (2,4-dibromo-3,6-dihydroxyphenyl)acetate, 4a] which inhibited Pfnek-1 with an IC(50) around 1.8 muM. This product was moderately active in vitro against a FcB1 P. falciparum strain (IC(50) = 12 muM). From the same sponge, we isolated three known compounds [11,19-dideoxyfistularin-3 (1), 11-deoxyfistularin-3 (2) and dibromo-verongiaquinol (3)] which were inactive against Pfnek-1. Synthesis and biological evaluation of some derivatives of 4a are reported.
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Affiliation(s)
- Nicolas Lebouvier
- Laboratoire de Chimie, Université de la Nouvelle-Calédonie, BP R4, 98851 Nouméa cedex, New Caledonia; E-Mails:
(I.D.);
(A.P.)
| | - Valérie Jullian
- Laboratoire de Pharmacochimie des Substances Naturelles et Pharmacophores Redox, Université de Toulouse, UPS, UMR 152, 118, rte de Narbonne, F-31062 Toulouse cedex 9, France; E-Mails:
(V.J.);
(S.M.);
(M.S.);
(D.L.)
- Institut de Recherche pour le Développement (IRD); UMR 152, 118, rte de Narbonne, F-31062 Toulouse cedex 9, France
| | - Isabelle Desvignes
- Laboratoire de Chimie, Université de la Nouvelle-Calédonie, BP R4, 98851 Nouméa cedex, New Caledonia; E-Mails:
(I.D.);
(A.P.)
| | - Séverine Maurel
- Laboratoire de Pharmacochimie des Substances Naturelles et Pharmacophores Redox, Université de Toulouse, UPS, UMR 152, 118, rte de Narbonne, F-31062 Toulouse cedex 9, France; E-Mails:
(V.J.);
(S.M.);
(M.S.);
(D.L.)
- Institut de Recherche pour le Développement (IRD); UMR 152, 118, rte de Narbonne, F-31062 Toulouse cedex 9, France
| | - Arnaud Parenty
- Laboratoire de Chimie, Université de la Nouvelle-Calédonie, BP R4, 98851 Nouméa cedex, New Caledonia; E-Mails:
(I.D.);
(A.P.)
| | - Dominique Dorin-Semblat
- INSERM U609, Global Health Institute, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland; E-Mails:
(D.D.-S.);
(C.D.)
- Wellcome Centre for Molecular Parasitology, University of Glasgow, Glasgow G12 8TA, Scotland, UK
| | - Christian Doerig
- INSERM U609, Global Health Institute, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland; E-Mails:
(D.D.-S.);
(C.D.)
- Wellcome Centre for Molecular Parasitology, University of Glasgow, Glasgow G12 8TA, Scotland, UK
| | - Michel Sauvain
- Laboratoire de Pharmacochimie des Substances Naturelles et Pharmacophores Redox, Université de Toulouse, UPS, UMR 152, 118, rte de Narbonne, F-31062 Toulouse cedex 9, France; E-Mails:
(V.J.);
(S.M.);
(M.S.);
(D.L.)
- Institut de Recherche pour le Développement (IRD); UMR 152, 118, rte de Narbonne, F-31062 Toulouse cedex 9, France
| | - Dominique Laurent
- Laboratoire de Pharmacochimie des Substances Naturelles et Pharmacophores Redox, Université de Toulouse, UPS, UMR 152, 118, rte de Narbonne, F-31062 Toulouse cedex 9, France; E-Mails:
(V.J.);
(S.M.);
(M.S.);
(D.L.)
- Institut de Recherche pour le Développement (IRD); UMR 152, 118, rte de Narbonne, F-31062 Toulouse cedex 9, France
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11
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García-Egido E, Paz J, Iglesias B, Muñoz L. Synthesis of cyanoformamides from primary amines and carbon dioxide under mild conditions. Synthesis of ceratinamine. Org Biomol Chem 2009; 7:3991-9. [DOI: 10.1039/b912043b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Yoshida M, Yamaguchi K. Total Synthesis of the Marine Bromotyrosine Alkaloid Moloka'iakitamide. Chem Pharm Bull (Tokyo) 2009; 57:1147-9. [DOI: 10.1248/cpb.57.1147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Makoto Yoshida
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University
| | - Kentaro Yamaguchi
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University
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13
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Murthy PS, Venugopalan VP, Nair KVK, Subramoniam T. Larval Settlement and Surfaces: Implications in Development of Antifouling Strategies. MARINE AND INDUSTRIAL BIOFOULING 2008. [DOI: 10.1007/978-3-540-69796-1_13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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14
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Oh KB, Lee JH, Chung SC, Shin J, Shin HJ, Kim HK, Lee HS. Antimicrobial activities of the bromophenols from the red alga Odonthalia corymbifera and some synthetic derivatives. Bioorg Med Chem Lett 2007; 18:104-8. [PMID: 18053715 DOI: 10.1016/j.bmcl.2007.11.003] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2007] [Revised: 10/18/2007] [Accepted: 11/01/2007] [Indexed: 10/22/2022]
Abstract
A series of bromophenols was obtained by isolation from red alga Odonthalia corymbifera and by reactions of bis(hydroxyphenyl)methanes with bromine. New bromophenols including 3,3',5,5'-tetrabromo-2,2',4,4'-tetrahydroxydiphenylmethane (10), a regioisomer of the potent antimicrobial natural product, together with known derivatives were synthesized in high yield. All of the isolated and synthesized compounds were tested for antimicrobial activity against gram-negative, gram-positive bacteria and fungi. The preliminary structure-activity relationship, to elucidate the essential structure requirements for antimicrobial activity, has been described. Among the isolated natural products 2,2',3,3'-tetrabromo-4,4',5,5'-tetrahydroxydiphenylmethane (4) was found to be the most active derivative against Candida albicans, Aspergillus fumigatus, Trichophyton rubrum, and Trichophyton mentagrophytes. The synthetic bromophenols 3,3'-dibromo-6,6'-dihydroxydiphenylmethane (13) and 3,3',5,5'-tetrabromo-6,6'-dihydroxydiphenylmethane (14) showed potent antibacterial effect against Staphylococcus aureus, Bacillus subtilis, Micrococcus luteus, Proteus vulgaris, and Salmonella typhimurium.
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Affiliation(s)
- Ki-Bong Oh
- Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea
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15
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Peng J, Li J, Hamann MT. The marine bromotyrosine derivatives. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2005; 61:59-262. [PMID: 16173400 PMCID: PMC4943341 DOI: 10.1016/s1099-4831(05)61002-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jiangnan Peng
- Department of Pharmacognosy, National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Oxford, Mississippi, USA
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16
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Diers JA, Pennaka HK, Peng J, Bowling JJ, Duke SO, Hamann MT. Structural activity relationship studies of zebra mussel antifouling and antimicrobial agents from verongid sponges. JOURNAL OF NATURAL PRODUCTS 2004; 67:2117-2120. [PMID: 15620267 PMCID: PMC4928192 DOI: 10.1021/np040097t] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Several dibromotyramine derivatives including moloka'iamine were selected as potential zebra mussel (Dreissena polymorpha) antifoulants due to the noteworthy absence of fouling observed on sponges of the order Verongida. Sponges of the order Verongida consistently produce these types of bromotyrosine-derived secondary metabolites. Previously reported antifouling data for the barnacle Balanus amphitrite(EC50 = 12.2 microM) support the results reported here that the compound moloka'iamine may be a potential zebra mussel antifoulant compound (EC50 = 10.4 microM). The absence of phytotoxic activity of the compound moloka'iamine toward Lemna pausicostata and, most importantly, the compound's significant selectivity against macrofouling organisms such as zebra mussels suggest the potential utility of this compound as a naturally derived antifoulant lead.
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Affiliation(s)
| | | | | | | | | | - Mark T. Hamann
- Corresponding author. Tel: (662) 915-5730. Fax: (662) 915-6975.
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17
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Affiliation(s)
- Iwao Omae
- Omae Research Laboratories, 335-23, Mizuno, Sayama, Saitama, 350-1317 Japan.
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18
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Schoenfeld RC, Conova S, Rittschof D, Ganem B. Cytotoxic, antifouling bromotyramines: a synthetic study on simple marine natural products and Their analogues. Bioorg Med Chem Lett 2002; 12:823-5. [PMID: 11859011 DOI: 10.1016/s0960-894x(02)00022-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Synthesis and biological evaluation of two naturally-occurring bromotyramines, moloka'iamine 1 and 3,5-dibromo-4-methoxy-beta-phenethylamine 2, together with several analogues, have been completed. Bromotyramine 2 is cytotoxic, and was found to be a potent antifoulant. Analogues 15 and 16 also displayed significant cytotoxic and antifouling activities.
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Affiliation(s)
- Ryan C Schoenfeld
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, NY 14853-1301, USA
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19
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Chang CW. Naturally occurring isocyano/isothiocyanato and related compounds. FORTSCHRITTE DER CHEMIE ORGANISCHER NATURSTOFFE = PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS. PROGRES DANS LA CHIMIE DES SUBSTANCES ORGANIQUES NATURELLES 2001; 80:1-186. [PMID: 11036790 DOI: 10.1007/978-3-7091-6331-3_1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- C W Chang
- Department of Chemistry, University of West Florida, Pensacola, USA
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20
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Schoenfeld RC, Lumb JP, Fantini J, Ganem B. Total synthesis of mololipids: a new series of anti-HIV Moloka'iamine derivatives. Bioorg Med Chem Lett 2000; 10:2679-81. [PMID: 11128650 DOI: 10.1016/s0960-894x(00)00543-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A new family of bioactive bromotyrosine derivatives, termed mololipids, was recently isolated from a Hawaiian sponge, but could not be resolved into individual components by chromatography. To complete their structural characterization and better understand structure-activity relationships, the first pure samples of dimyristoyl, distearoyl, dioleoyl, and stearoyl/oleoyl mololipids have now been prepared by total synthesis, and their anti-HIV activity investigated.
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Affiliation(s)
- R C Schoenfeld
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853-1301, USA
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Lacy C, Scheuer PJ. New Moloka'iamine derivatives from an undescribed verongid sponge. JOURNAL OF NATURAL PRODUCTS 2000; 63:119-121. [PMID: 10650091 DOI: 10.1021/np9902643] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The polar extract of an undescribed Verongid sponge from the island of Molokai yielded three new bromotyramines. Two compounds terminate in a chlorocyclopentanedione enamine moiety. Their structures were elucidated by NMR spectra measured at -30 degrees C. The third compound is the N-methyl derivative of a known compound. This structure was determined by NMR spectra measured at room temperature.
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Affiliation(s)
- C Lacy
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA
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