A novel process for the preparation of derivatives of prostanoic acids of the prostaglandin A.sub.2 (PGA.sub.2) group of the formula ##STR1## wherein R is selected from the group consisting of hydrogen and lower alkyl, n is a whole number of 2, 3 or 4 and m is a whole number of 3, 4 or 5 and to novel intermediates produced in the said process.
一种新型方法,用于制备
前列腺素A.sub.2(
PGA.sub.2)类的
前列腺酸衍
生物,其
化学式为##STR1##其中R选自氢和较低的烷基,n为2、3或4的整数,m为3、4或5的整数,以及在该过程中产生的新型中间体。