反应详情

condensing 4-methoxyphenylhydrazine or its salts with benzyl levulinoyloxyacetate according to Fischer to form (5-methoxy-2-methyl-3-indoleacetoxy)-benzyl acetate, subsequently acylating the alkali salt thereof with p-chlorobenzoyl chloride to form [1-(p-chlorobenzoyl)-5-methoxy-2-methyl-3-indole-acetoxy]-benzyl acetate and then catalytically dehydrogenating the benzyl group (see reaction scheme A),