The invention relates to a process for the manufacture of a compound of formula (I) or a salt, especially a pharmaceutically acceptable salt with a base, thereof or a lactone thereof wherein the element (II) represents -CH2-CH2- or -CH=CH- and R represents a cyclic residue.
本发明涉及一种制备式(I)化合物或其盐的过程,特别是制备其与碱形成的药用可接受盐或其内酯,其中元素(II)表示-
CH2- -或-CH=CH-,R代表环状残基。