ANALOGIFREMGANGSMAADE for preparing 3-substituted amino-4-methyl-6-phenyl-pyridazine derivatives or pharmaceutically acceptable acid addition salts thereof

摘要

The present invention relates to derivatives of 4-methyl 6-phenyl pyridazine of formula: IMAGE (I) in which R is OH or H, R1 is H or IMAGE n being 0 or 1, X being H, Y being H or alkyl or X and Y forms an ethylene or oxoethylene group; it also relates to a process for preparing the products of formula (I) and to drugs containing at least one product of formula (I).