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Pinheiro AC, Kaiser CR, Lourenço MC, de Souza MV, Wardell SM, Wardell JL. Synthesis and in Vitro Activity towards Mycobacterium Tuberculosis of L-serinyl Ester and Amino Derivatives of Pyrazinoic Acid. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823407x200001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Reactions between either L-serine methyl ester hydrochloride (1), or the cbz derivative, methyl (S)-(+)-2-(benzyloxycarbonylamino)-3-hydroxypropanoate (2), and pyrazinoyl chloride (3), have been studied. Methyl (S)-(+)-2-benzyloxycarbonylamino-3-[(pyrazinecarbonyl)oxy]propionate (4), methyl (S)-(+)-3-hydroxy-2-[(pyrazine-2-carbonyl) amino]propionoate (7), methyl 2-[(pyrazinecarbonyl)amino]acrylate (8) were obtained. Additional products, methyl (S)-(+)-2-benzyloxycarbonylamino-3-formyloxypropionoate (5) and methyl (R)-(+)-2-benzyloxycarbonylamino-3-chloropropionoate (6), were isolated from reaction of 2 with 3, in the presence of DMF remaining from the preparation of 3, from pyrazinecarboxylic acid. The coupling of pyrazinecarboxylic acid with 1, in the presence of DCC was prevented by the formation of the unreactive adduct between DCC and pyrazinoic acid. The compounds were tested against M. tuberculosis: compounds (8) and (6) exhibited a MIC (μg/ml) value of 50 and 100, respectively, compared to the MIC value of 100 for the first line TB drug, pyrazinamide. The confirmation of the structure of (8) was obtained via X-ray crystallography.
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Affiliation(s)
- Alessandra C. Pinheiro
- Instituto de Tecnologia em Fármacos, Far-Manguinhos, FioCruz, CEP 21041-250 Rio de Janeiro, RJ, Brazil
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio de Janeiro, CEP 68534, 21941-972 Rio de Janeiro, RJ, Brazil
| | - Carlos R. Kaiser
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio de Janeiro, CEP 68534, 21941-972 Rio de Janeiro, RJ, Brazil
| | - Maria C.S. Lourenço
- Instituto de Pesquisas Clínica Evandro Chagas – IPEC – Av. Brasil, 4365 - Manguinhos, FioCruz, CEP 21041-250 Rio de Janeiro, RJ, Brazil
| | - Marcus V.N. de Souza
- Instituto de Tecnologia em Fármacos, Far-Manguinhos, FioCruz, CEP 21041-250 Rio de Janeiro, RJ, Brazil
| | - Solange M.S.V. Wardell
- Instituto de Tecnologia em Fármacos, Far-Manguinhos, FioCruz, CEP 21041-250 Rio de Janeiro, RJ, Brazil
| | - James L. Wardell
- Instituto de Química, Departamento de Química Inorgânica, Universidade Federal do Rio de Janeiro, CEP 68563, 21945-970 Rio de Janeiro, RJ, Brazil
- Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen AB24 3UE, UK
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Studies of Imidazo[1,2-a]Benzimidazoles 32*. Synthesis and Properties of 2,3-Dihydroimidazo-and 2,3,4,10-Tetrahydropyrimido[1,2-a]Benzimidazol-9(10)-Ylacetic Acids. Chem Heterocycl Compd (N Y) 2014. [DOI: 10.1007/s10593-014-1427-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Tecilla P, Tonellato U, Veronese A, Felluga F, Scrimin P. Acceleration of p-Nitrophenyl Ester Cleavage by Zn(II)-Organized Molecular Receptors. J Org Chem 1997. [DOI: 10.1021/jo970783f] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Colthurst MJ, Nanni M, Williams A. Transfer of a positively charged acyl group between substituted phenolate ion nucleophiles: the brønsted β for the calibrating equilibrium for N-methylisonicotinyl (4-carbonyl-N-methylpyridinium) transfer. ACTA ACUST UNITED AC 1996. [DOI: 10.1039/p29960002285] [Citation(s) in RCA: 16] [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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Janecka A, Janecki T, Bowers C, Folkers K. Antide B, an antagonist of LHRH with cis-3-(4-pyrazinylcarbonylaminocyclohexyl)alanine in position 5. Amino Acids 1995; 8:89-96. [DOI: 10.1007/bf00806547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/1994] [Accepted: 05/25/1994] [Indexed: 10/26/2022]
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Janecka A, Ljungqvist A, Bowers C, Folkers K. Superiority of an antagonist of the luteinizing hormone releasing hormone with emphasis on arginine in position 8, named Argtide. Biochem Biophys Res Commun 1991; 180:374-9. [PMID: 1656974 DOI: 10.1016/s0006-291x(05)81303-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In the research for more potent antagonists of the luteinizing hormone releasing hormone (LHRH), 13 new peptides with emphasis on arginine in position 8 were designed, synthesized and tested for anti-ovulatory activity (AOA). Two very potent analogs were achieved. N-Ac-D-3-Qal, D-pClPhe, D-3-Pal, Ser, cis-PzACA1a, D-PicLys, Leu, Arg, Pro, D-AlaNH2 showed 63% AOA at 0.125 microgram and 89% at 0.25 microgram, and an ED50 of 30.8 +/- 0.59 and presently may be the most promising antagonist reported. It is named Argtide. N-Ac-D-3-Qal, D-pClPhe, D-3-Pal, Ser, cis-PzACA1a, D-PicLys, Val, Arg, Pro, D-AlaNH2 showed 18% AOA at 0.125 microgram. Arg8 in antagonists may be significant for receptor binding.
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Affiliation(s)
- A Janecka
- Institute for Biomedical Research, University of Texas, Austin 78712
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