Steroidal androgen biosynthesis inhibitors

Autor: T. Jefopoulus, L. H. Peterson, R. L. Bugianesi, Frederick A. Kuehl, N. G. Brink, G. E. Arth, E. A. Ham, Arthur A. Patchett
Rok vydání: 1971
Předmět:
Zdroj: Journal of Medicinal Chemistry. 14:675-679
ISSN: 1520-4804
0022-2623
DOI: 10.1021/jm00290a003
Popis: 23,17beta-acylaminoandrost-4-en-3-ones and 3 previously known nonsteroids were synthesized and screened as inhibitors of 17,20-lyase, a step in androgen synthesis from progesterone or OH-progesterone. The screening involved measuring side chain cleavage (carbon-14-acetate release) from 21-carbon-14-17alpha-OH-progesterone by rat testis microsomes. The amide, urea, guanidino and carbamate derivatives were also tested by conversion of cholesterol to pregnenolone by a bovine corpora lutea acetone powder, by conversion of corticosterone to 18-OH-corticosterone by crude adrenal mitochondria, and by feeding to male rats to check effect on adrenal weight and testis testosterone level. More than 80% inhibition was achieved with androst-4-en-3-ones having the C-17beta carbamate, formamido, acetamido and ureido groups. These compounds did not inhibit OH-corticosterone synthesis. 6-alpha methylation inhibited the lyase 50-70%. 1 compound 17-beta-ureidoandrost-1,4-dien-3-one was fed to male rats for 6 weeks at 500 mg per kg; it reduced testis testosterone but not adrenal weight. Selective inhibition of androgen synthesis would be useful for treating benign prostate hypertrophy, hirsutism, acne and androgen dependent tumors.
Databáze: OpenAIRE