PROCESS FOR PREPARING HYDRAZINOPYRIDAZINE DERIVATIVES

摘要

New hydrazino-pyridazine derivatives having the general formula wherein R is an alkyl radical containing from 1 to 4 carbon atoms which may be substituted with a hydroxy group and R1 is a hydrogen atom or an alkyl radical containing from 1 to 4 carbon atoms, or a phenyl or 3-pyridyl group. These derivatives have high hypertensive activity.