6α-((R)-2-amino-2-phenyl-acetylamino)-penicillanic acid 、
6-[4-(acetylamino)phenyl]-1,2-dihydro-2-oxonicotinic acid imidazolide 生成 sodium;(2S,5R,6S)-6-[[(2R)-2-[[6-(4-acetamidophenyl)-2-oxo-1H-pyridine-3-carbonyl]amino]-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate