BLOOD GASTRIN LEVEL ELEVATION INHIBITOR

摘要

PROBLEM TO BE SOLVED: To provide an excellent blood gastrin level elevation inhibitor.;SOLUTION: This pyrrolopyridazine compound has general formula (wherein, R¹ is an alkenyl, a halogenoalkenyl, an alkynyl, a cycloalkyl or an optionally substituted cycloalkylalkyl; R² is H or an alkyl; R³ is H, an alkyl or a hydroxyalkyl; R⁴ is H or an alkyl; R⁵ is an optionally substituted phenyl; A is an alkylene; and X is O or S).;COPYRIGHT: (C)2004,JPO