SUBSTITUTED IMIDAZOLE DERIVATIVES AND THEIR PREPARATION AND USE

摘要

Compounds of the formula: wherein X is -CH2 - or - @- Rl is H, alkyl or benzyl, which can be substituted or unsubstituted R2 is H, alkyl, OH or alkoxy R3 is H, CH3, CH2CH3, OCH3 or Hal R4 is H, CH3, CH2CH3, OCH3 or Hal and Hal is halogen provided that when R2 is H or C1-3-alkyl then R1 cannot be H and when R2 is OH or C1-3-alkoxy then X cannot be CO, and non-toxic acid addition salts and mixtures thereof are highly selective antagonists at postsynaptic alpha 2-adrenoceptors, and are especially useful in the treatment of diabetes.