| Title:  Dutasteride CAS Registry Number:  164656-23-9 CAS Name:  (4aR,4bS,6aS,7S,9aS,9bS,11aR)-N-[2,5-Bis(trifluoromethyl)phenyl]-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-4a,6a-dimethyl-2-oxo-1H-indeno[5,4-f]quinoline-7-carboxamide Additional Names:  17b-N-[2,5-Bis(trifluoromethyl)phenyl]carbamoyl-4-aza-5a-androst-1-en-3-one Manufacturers' Codes:  GG-745;  GI-198745 Trademarks:  Avodart (GSK);  Avolve (GSK) Molecular Formula:  C27H30F6N2O2 Molecular Weight:  528.53 Percent Composition:  C 61.36%, H 5.72%, F 21.57%, N 5.30%, O 6.05% Literature References:  Dual inhibitor of 5a-reductase isoenzymes types 1 and 2; structurally related to finasteride, q.v.  Prepn:  K. W. Batchelor, S. V. Frye, WO 9507927 (1995 to Glaxo).  Structure-activity study:  R. K. Bakshi et al., J. Med. Chem. 38, 3189 (1995).  Clinical pharmacokinetics:  P. O. Gisleskog et al., Br. J. Clin. Pharmacol. 47, 53 (1999).  Clinical trial in benign prostatic hyperplasia:  C. G. Roehrborn et al., Urology 60, 434 (2002).  Review of discovery and development:  S. V. Frye et al., Pharm. Biotechnol. 11, 393-422 (1998); of clinical experience:  B. Djavan et al., Expert Opin. Pharmacother. 6, 311-317 (2005). Properties:  White crystalline solid, mp 245-245.5°. Melting point:  mp 245-245.5° Therap-Cat:  In treatment of benign prostatic hyperplasia. Keywords:  5a-Reductase Inhibitor; Antiprostatic Hypertrophy.  |