Title:  Voriconazole 
CAS Registry Number:  137234-62-9 
CAS Name:  (aR,bS)-a-(2,4-Difluorophenyl)-5-fluoro-b-methyl-a-(1H-1,2,4-triazol-1-ylmethyl)-4-pyrimideethanol 
Additional Names:  2R,3S-2-(2,4-difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol 
Manufacturers' Codes:  UK-109496 
Trademarks:  Vfend (Pfizer) 
Molecular Formula:  C16H14F3N5O 
Molecular Weight:  349.31 
Percent Composition:  C 55.01%, H 4.04%, F 16.32%, N 20.05%, O 4.58% 
Literature References:  Ergosterol biosynthesis inhibitor.  Prepn:  S. J. Ray, K. Richardson, EP 440372; eidem, US 5278175 (1991, 1994 both to Pfizer); R. P. Dickinson et al., Bioorg. Med. Chem. Lett. 6, 2031 (1996).  Mechanism of action:  H. Sanati et al., Antimicrob. Agents Chemother. 41, 2492 (1997).  In vitro antifungal spectrum:  F. Marco et al., ibid. 42, 161 (1998).  HPLC determn in plasma:  R. Gage, D. A. Stopher, J. Pharm. Biomed. Anal. 17, 1449 (1998).  Review of pharmacology and clinical development:  P. E. Verweij et al., Curr. Opin. Anti-Infect. Invest. Drugs 1, 361-372 (1999); J. A. Sabo, S. M. Abdel-Rahman, Ann. Pharmacother. 34, 1032-1043 (2000).  Clinical pharmacokinetics:  L. Purkins et al., Antimicrob. Agents Chemother. 46, 2546 (2002).  Clinical comparison with amphotericin B:  T. J. Walsh et al., N. Engl. J. Med. 346, 225 (2002). 
Properties:  mp 127°.  [a]D25 -62° (c = 1 in methanol). 
Melting point:  mp 127° 
Optical Rotation:  [a]D25 -62° (c = 1 in methanol) 
Therap-Cat:  Antifungal (systemic) 
Keywords:  Antifungal (Synthetic); Triazoles.   |