中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
炔雌醇 | ethinyl estradiol | 57-63-6 | C20H24O2 | 296.409 |
(7a)-3,7-二羟基-雌甾-1,3,5(10)-三烯-17-酮 | 3,7α-dihydroxy-estra-1,3,5(10)-trien-17-one | 2487-49-2 | C18H22O3 | 286.371 |
The microbial transformation of oral contraceptive norethisterone (1) by Cephalosporium aphidicola afforded an oxidized metabolite, 17α-ethynylestradiol (2), while the microbial transformation of 2 by Cunninghamella elegans yielded several metabolites, 19-nor-17α-pregna-1,3,5 (10)- trien-20-yne-3,4,17β -triol (3), 19-nor-17α-pregna-1,3,5 (10)-trien-20-yne-3,7α,17β -triol (4), 19- nor-17α-pregna-1,3,5 (10)-trien-20-yne-3,11α,17β -triol (5), 19-nor-17α-pregna-1,3,5 (10)-trien-20- yne-3,6β ,17β -triol (6) and 19-nor-17α-pregna-1,3,5 (10)-trien-20-yne-3,17β -diol-6β -methoxy (7). Metabolite 7 was found to be a new compound. These metabolites were structurally characterized on the basis of spectroscopic techniques