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Did you mean aprd00691 of aprd00762?
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Desogestrel, a prodrug, is a third generation progestogen and hence, a member of the gonane family which was largely used in Europe before being approved in the US and Canada. It was firstly generated from a study that showed that 11-beta and 11-alkylidene substituent in nortestosterone can enhance the biological...
Approved
Ethinylestradiol was first synthesized in 1938 by Hans Herloff Inhoffen and Walter Hohlweg at Schering. It was developed in an effort to create an estrogen with greater oral bioavailability. These properties were achieved by the substitution of an ethinyl group at carbon 17 of estradiol. Ethinylestradiol soon replaced mestranol in...
Approved
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