16-Methoxy-16-methyl prostaglandin E.sub.1 derivatives, a process for
申请人:Gruppo Lepetit S.p.A.
公开号:US04547521A1
公开(公告)日:1985-10-15
The present invention is directed to new 16-methoxy-16-methyl prostaglandin E.sub.1 derivatives of the following general formula ##STR1## wherein R stands for a (C.sub.1-4) alkyl group or a non-toxic pharmaceutically acceptable cation, to a process for preparing them and to their use as gastroprotective agents.
The synthesis of the pure diastereoisomer of 16-methoxy-16-methyl-PGF2 alpha, -PGE2, and -PGE1 is described. The absolute configuration of C-16 was established by chemical methods, while the absolute C-15configurations of the diastereoisomers were assigned tentatively on the basis of their chromatographic behavior and NMR spectra. The synthetic prostaglandin analogues were evaluated for antisecretory