N2-[(1S)-ethoxycarbonyl-3-phenylpropyl]-N6-boc-L-lysine 、 tert-butyl (4S)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine-4-carboxylate 生成 tert-butyl (4S)-5-[(2S)-2-[[(2S)-1-ethoxy-1-oxo-4-phenylbutan-2-yl]amino]-6-[(2-methylpropan-2-yl)oxycarbonylamino]hexanoyl]-6,7-dihydro-4H-thieno[3,2-c]pyridine-4-carboxylate