New 1,3-dioxolan-4-yl derivatives of 2-picolylamine
申请人:J. URIACH & CIA. S.A.
公开号:EP0388950A3
公开(公告)日:1991-03-27
The present invention relates to new 1,3-dioxolan-4-yl derivatives of 2-picolylamine having the formula (I):
wherein:
R₁ represents an alkyl or phenylalkyl radical; R₂ represents hydrogen, C₁-C₄-acyl or C₁-C₄-alkoxycarbonyl; R₃ is either an electron pair, in which case t means nothing and q is zero, or R₃ is hydrogen or C₁-C₄-alkyl, in which case t is (+) and q=1; X is a single bond, an oxygen atom or a carbamoyloxy group; A⁻ is a pharmaceutically acceptable anion. These compounds are PAF antagonists and, consequently, useful in the treatment of the diseases in which this substance is involved.