CH3CO)20 +H2O 2 CH3CO2H CH3CO)20+ 2NH 无法显示该图片 H2C-C CH2-CONH2 H+ CH2-CONH2 o+ 2NH3 H2C-C CH2-CO2 NH4 CH2-CO2H (CH3 CO)20+ CH3OH CH3 COOCH3 H3CCO2H o|cco CH C-o+ H3CCH2CHCH COOCHCH2CH3 H2CH3CO2H H2C C H2C C O O O + 2NH3 CH2 CH2 CONH2 CO2NH4 H + CH2 CH2 CONH2 CO2H CH3COOCH3 + H3CCO2H C C O O O + H3CCH2CHCH3 OH COOCHCH2CH3 CH3 COOH (CH3CO)2O + 2NH3 (CH3CO)2O + H2O (CH3CO)2O + CH3OH