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Abstract
1. Following subcutaneous administration of 1-(2-(3-chlorobenzyloxy)phenyl)vinyl)-1 H-imidazole (croconazole) to rats, four metabolites were identified by comparison of their mass and n.m.r. spectra, g.l.c., and t.l.c. with those of synthetic compounds and enzyme hydrolysis. These compounds are o-hydroxyacetophenone sulphate (M1S), 1-(1-(2-hydroxyphenacyl)vinyl)-1H-imidazole sulphate (M12S), 2-(3-chlorobenzyloxy)phenacyl alcohol (M2), and 2-(3-chlorobenzyloxy)benzoic acid (M9-1).
2. At 10 mg/kg dosing of croconazole the elimination rate of the unchanged drug from plasma was faster in male than in female rats.
3. The percentage of excretion of M12S in 24 h urine was 17% for males and 7.5% for females, and that of M1S was 6.6% for males and 6.5% for females. The percentage of excretion of M2 in 24 h bile was 14% for males and 22% for females, and that of M9-1 was 3.7% for males and 1.6% for females.