| abstract |
Procedure for obtaining 13-thiaprostanic acid derivatives of general formula I ** (Formula) ** where A means -CO- or CHOH-, B means -CH2CH2 or -CH = CH-, O means 1,4-phenyl or 1,4-naphthylene, R1 means H or OH, R2 means H or CH3, R3 means alkyl with 1-8 carbon atoms or alkyl substituted by Ar with 1-8 carbon atoms, Ar represents phenyl, phenyl substituted by CH3 , F, Cl, Br, OH, OCH3 or CF3 ;: phenoxy or phenoxy substituted by CH3, F, Cl, Br, OH, OCH3 or CF3 and R4 means NH2, CH3, phenyl, p-acetylaminophenyl, p-benzoylaminophenyl or phenylamino . |