6-(1-aminoethyl)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester 、
氯甲酸甲酯 以to afford 6-(1-methoxycarbonylaminoethyl)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester in 70% yield的产率得到6-(1-methoxycarbonylaminoethyl)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester