Wan AS, Ngiam TL, Leung SL, Go ML, Heng PW, Natarajan PN, Shafiee A, Vossoghi M, Savabi F, Francisco CG. Long-acting contraceptive agents: norethisterone esters of arylcarboxylic acids.
Steroids 1983;
41:309-20. [PMID:
6658878 DOI:
10.1016/0039-128x(83)90101-0]
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Abstract
The synthesis of esters of norethisterone (17 alpha-ethynyl-17 beta-hydroxy-estr-4-en-3-one) with acids containing a benzene ring is described, two methods of esterification being compared in terms of yield and convenience. The activities of these esters as long-acting contraceptive agents have been evaluated.
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