5-benzyloxy-3-ethoxycarbonyl-4-methoxymethyl-1,2,3,4-tetrahydro-β-carboline-1-carboxylic acid 在
邻二甲苯 、
乙酸乙酯 作用下,
以
邻二甲苯 为溶剂,
反应 1.0h,
以the residue yields 8.83 g of 5-benzyloxy-4-methoxymethyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid ethyl ester with a melting point of 170°-171° C. (98.2% of theory)的产率得到5-benzyloxy-4-methoxymethyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid ethyl ester