N-[1-[(1-Amino-6-isoquinolinyl)methyl]-2-oxo-2-(1-piperidinyl)ethyl]-2-[[(3,4-dihydro-2,2,5,7,8-pentamethyl-2H-1-benzopyran-6-yl)sulfonyl]amino]acetamide hydrochloride 、 1-[(1-Amino-6-isoquinolinyl)methyl]-2-oxo-2-(4-morpholinyl)ethylcarbamate 、 (2S)-2-[[(4-methoxy-2,3,6-trimethylphenyl)sulfonyl]amino]butanedioic acid 4-(1,1-dimethylethyl)ester 、
L-天门冬氨酸-4-叔丁基酯 、
4-甲氧基-2,3,6-三甲基苯磺酰氯 、 以to yield the title compound (56 mg)的产率得到(3S)-4-[[1-[(1-amino-6-isoquinolinyl)methyl]-2-oxo-2-(4-morpholinyl)ethyl]amino]-3-[[(4-methoxy-2,3,6-trimethylphenyl)sulfonyl]amino]-4-oxo-butanoic acid 1,1-dimethylethylester hydrochloride