Long-acting contraceptive agents: Norethisterone esters of arylcarboxylic acids
摘要:
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.
Norethisterone and levonorgestrel esters: A novel synthetic method
作者:S.L. Leung、R. Karunanithy、G. Becket、S.H. Yeo
DOI:10.1016/0039-128x(85)90027-3
日期:1985.7
Aliphatic, alicyclic and arylcarboxylic esters of norethisterone and levonorgestrel were prepared in a one-step synthesis and in near-quantitative yield using trifluoroacetic anhydride.