9-amino-4-oxo-2-pyridin-4-yl-5,6,8,9-tetrahydro-4H-1,4a,7-triaza-benzocycloheptene-7-carboxylic acid ethyl ester 、
2-BOC-7-羧基-1,2,3,4-四氢异喹啉 、
2-吡啶甲酸 以the compound, 0.286 g (80%), was obtained as a white powder的产率得到(+/-)-9-[(2-tert-butoxycarbonyl-1,2,3,4-tetrahydro-isoquinoline-7-carbonyl)-amino]-4-oxo-2-pyridin-4-yl-5,6,8,9-tetrahydro-4H-1,4a,7-triaza-benzocycloheptene-7-carboxylic acid ethyl ester