A 20-alkoxy-16-alkyl-prostadienoic acid derivative shown by the formula ##STR1## wherein A represents ##STR2## R and R.sup.5, which may be the same or different, each represents a hydrogen atom or a lower alkyl group; and R.sup.1 and R.sup.4, which may be the same or different, each represents a lower alkyl group, And the pharmacologically acceptable nontoxic salts thereof. The compounds have excellent effects as prostaglandin E.sub.2 and prostaglandin F.sub.2.alpha..
一种20-烷氧基-16-烷基-
前列环素酸衍
生物,其
化学式为##STR1##其中A代表##STR2##R和R.sup.5,可以相同或不同,每个代表氢原子或较低的烷基;R.sup.1和R.sup.4,可以相同或不同,每个代表较低的烷基,以及其药理学上可接受的无毒盐。这些化合物作为
前列腺素E.sub.2和
前列腺素F.sub.2.alpha.具有出色的效果。