- Optically active antifungal azoles. VIII synthesis and antifungal activity of 1-[(1R,2R)-2-(2,4-difluoro- and 2-fluorophenyl)-2-hydroxy-1- methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-3-(4-substituted phenyl)2(1H,3H)- imidazolones and 2-imidazolidinones
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New optically active antifungal azoles, 1-[(1R,2R)-2-(2,4-difluoro- and 2-fluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-3-(4- substituted phenyl)-2(1H,3H)-imidazolones (1, 2) and 2-imidazolidinones (3, 4), were prepared in a stereocontrolled manner from (1S)-1-[(2R)-2-(2,4- difluoro- and 2-fluorophenyl)-2-oxi-ranyl]ethanols (15, 16). Compounds 1 - 4 showed potent antifungal activity against Candida albicans in vitro and in vivo, as well as a broad antifungal spectrum for various fungi in vitro. Furthermore, the imidazolidinones, 3b - e and 4d, e, were found to exert extremely strong growth-inhibitory activity against Aspergillus fumigatus.
- Kitazaki, Tomoyuki,Tasaka, Akihiro,Tamura, Norikazu,Matsushita, Yoshihiro,Hosono, Hiroshi,Hayashi, Ryogo,Okonogi, Kenji,Itoh, Katsumi
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p. 351 - 359
(2007/10/03)
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- Optically active antifungal azoles. IX. An alternative synthetic route for 2-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol- 1-yl)propyl]-4-[4-(2,2,3,3-tetrafluoropropoxy)phenyl]-3(2H,4H)1,2,4- triazolone and its analogs
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A new route for the synthesis of the optically active antifungal azole TAK-187, 2-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4- triazol-1-yl)propyl]-4-[4-(2,2,3,3-tetrafluoroptopoxy)phenyl]3(2H,4H)-1,2,4- triazolone, was established. The key synthetic intermediate, 2-[(1R)-2-(2,4- difluorophenyl)-2-oxo-1-methylethyl]-4-[4-(2,2,3,3- tetrafluoropropoxy)phenyl]-3(2H,4H)-1,2,4-triazolone (8), was prepared starting from the esters (11a, b) of (S)-lactic acid in a stereocontrolled manner. This optically active propiophenone derivative 8 was converted to the one carbon-elongated (1R,2S)-diol 7, which was then reacted with 1H-1,2,4- triazole to yield TAK-187. This newly developed route was applied to the synthesis of the analogs (25a, b - 28a, b) containing an imidazolone or imidazolidinone nucleus.
- Kitazaki, Tomoyuki,Tasaka, Akihiro,Hosono, Hiroshi,Matsushita, Yoshihiro,Itoh, Katsumi
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p. 360 - 368
(2007/10/03)
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- Production of optically active triazole compounds and their intermediates
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A compound of the formula (V): STR1 wherein Ar' is a halogenated phenyl group, R is a hydrocarbon residue having a functional group at the α-carbon, R3' is an optionally substituted aliphatic or aromatic hydrocarbon residue or an optionally substituted aromatic heterocyclic group, Y and Z are, the same or different, a nitrogen atom or a methine group optionally substituted with a lower alkyl group, and (R) and (S) represent configurations, which is an optically active intermediate for production of optically active triazole compounds (I): STR2 wherein the symbols have the same meanings as defined above, and methods of preparing the compounds (V) and (I).
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- Triazole and imidazole compounds and their use as antifungal therapeutic agents
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The present invention provides an azole compound represented by the formula (I): STR1 wherein Ar is an optionally-substituted phenyl group; R1 and R2 are, the same or different, a hydrogen atom or a lower alkyl group, or R1/sup
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