Tehran University of Medical Sciences
Long-acting contraceptive agents: esters of norethisterone with alkoxy- and halogeno-substituted carboxylic acids.
Authors: Shafiee A , Vossoghi M , Francisco CG , Freire R , Hernandez R , Salazar JA , Suarez E , Sotheeswaran S ,
Steroids , Vol., No. 0039-128X (Print) , 19840214 ,Page:0
The chemical synthesis and physical data of several new esters of norethisterone (17 alpha-ethynyl-17 beta-hydroxyestr-4-en-3-one) are reported, which contain either a chloro- or an alkoxy-group as a substituent in the acid side-chain.