上游原料
tert-butyl (2S)-3-amino-2-[(phenylsulfonyl)amino]propanoate6-methylnicotinonitrile6-formylnicotinonitriledimethyl 2-(diethoxyphosphoryl)succinatemethyl 7-cyano-4-oxo-4H-quinolizine-2-carboxylatemethyl 7-(aminomethyl)-4-oxo-4H-quinolizine-2-carboxylatemethyl 7-{[(tert-butoxycarbonyl)amino]methyl}-4-oxo-4H-quinolizine-2-carboxylate7-{[(tert-butoxycarbonyl)amino]methyl}-4-oxo-4H-quinolizine-2-carboxylic acidtert-butyl (2S)-3-{[(7-{[(tert-butoxycarbonyl)amino]methyl}-4-oxo-4H-quinolizin-2-yl)carbonyl]amino}-2-[(phenylsulfonyl)amino]propanoate1-(Isocyanatomethyl)benzene; Benzyl Isocyanatetert-butyl (2S)-3-{[(7-{[(tert-butoxycarbonyl)amino]methyl}-4-oxo-4H-quinolizin-2-yl)carbonyl]amino}-2-[(phenylsulfonyl)amino]propanoatetert-butyl (2S)-3-({[7-(aminomethyl)-4-oxo-4H-quinolizin-2-yl]carbonyl}amino)-2-[(phenylsulfonyl)amino]propanoatetert-butyl (2S)-3-({[7-({[(benzylamino)carbonyl]amino}methyl)-4-oxo-4H-quinolizin-2-yl]carbonyl}amino)-2-[(phenylsulfonyl)amino]propanoate