- The influence of water on the stability of lyophilized formulations with inositol and mannitol as excipients
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The stability of a moisture-sensitive drug in lyophilized products was investigated under conditions with varying water content and temperature using two model formulations: a formulation containing inositol (IF) as the excipient and a formulation contain
- Terakita, Akira,Matsunaga, Hirokazu,Handa, Tetsuro
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- Optically active antifungal azoles. XI. An alternative synthetic route for 1-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl )propyl]-3-[4-(1H-1-tetrazolyl)phenyl]-2-imidazolidinone (TAK-456) and its analog
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New routes for the synthesis of the optically active antifungal triazoles 1-[(1R,2R)-2-(2,4-difluorophenyl)-2-Hydroxy-1-Methyl-3-(1H-1,2,4-triazol-1-Yl )propyl]-3-[4-(1H-1-tetrazolyl)phenyl]-2-imidazolidinone (1b) and the 3-[4-(1H-1,2,3-triazol-1-Yl)phenyl]-2-imidazolidinone analog (1a) that possess an imidazolidine nucleus were established. The key synthetic intermediates, (2R,3R)-3-(2,2-diethoxyethyl)amino-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol -1-Yl)-2-butanol (8) and (2R,3R)-2-(2,4-difluorophenyl)-3-(2-hydroxyethyl)amino-1-(1H-1,2,4-triazol-1- yl)-2-butanol (14), were prepared by the ring-Opening reaction of the oxirane (2) with the corresponding 2-Substituted ethylamines. The acetal (8) was converted to the imidazolidinones (1a, b) by condensation with the carbamates (10a, b) followed by treatment with hydrochloric acid and subsequent catalytic hydrogenation. The candidate selected for the clinical trials, 1b (TAK-456), was alternatively prepared from the hydroxyethylamino intermediate (14) via two reaction steps: condensation with the carbamate (10b) to the urea (15) and subsequent cyclization to the imidazolidinones. This newly developed synthetic route could be applied to a large scale preparation of 1b.
- Ichikawa, Takashi,Kitazaki, Tomoyuki,Matsushita, Yoshihiro,Hosono, Hiroshi,Yamada, Masami,Mizuno, Masahiro,Itoh, Katsumi
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p. 1947 - 1953
(2007/10/03)
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- Optically active antifungal azoles. X. Synthesis and antifungal activity of N-[4-(azolyl)phenyl]- and N-[4-(azolylmethyl)phenyl]-N′-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy -1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-azolones
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New optically active antifungal azoles, N-[4-(azolyl)phenyl]- and N-[4-(azolylmethyl)phenyl]-N′-[(1R,2R)-2-(2,4-difluorophenyl)-2-hydroxy -1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]azolones (1, 2, 3), were prepared in a stereocontrolled manner. Compounds 1
- Kitazaki, Tomoyuki,Ichikawa, Takashi,Tasaka, Akihiro,Hosono, Hiroshi,Matsushita, Yoshihiro,Hayashi, Ryogo,Okonogi, Kenji,Itoh, Katsumi
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p. 1935 - 1946
(2007/10/03)
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- Azole compounds, their production and use
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PCT No. PCT/JP96/00325 Sec. 371 Date Oct. 17, 1996 Sec. 102(e) Date Oct. 17, 1996 PCT Filed Feb. 15, 1996 PCT Pub. No. WO96/25410 PCT Pub. Date Aug. 20, 1996The present invention provides an azole compound represented by the formula (I): wherein Ar is an
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