A compound represented by the following formula (1) or (3): ##STR1## is subjected to a catalytic hydrogenolysis reaction in the presence of a base and thus a compound represented by the following formula (2): ##STR2## wherein R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and X represents a chlorine atom or a bromine atom; is easily produced. This compound is usable as an intermediate for the preparation of drugs.
以下公式(1)或(3)所代表的化合物经过在碱存在下的催化氢解反应,从而产生以下公式(2)所代表的化合物:其中R代表氢原子或具有1至4个碳原子的烷基基团,X代表
氯原子或
溴原子;这种化合物易于制备。该化合物可用作药物制备的中间体。