2-(1-isopropylidene)azino-5-carboxymethylenethiazolidine-(3H)-4-one 、
(5R,6R)-6-[[2-amino-2-(4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 生成 sodium;(5R,6R)-6-[[2-(4-hydroxyphenyl)-2-[[2-[4-oxo-2-(2-propan-2-ylidenehydrazinyl)-1,3-thiazol-5-yl]acetyl]amino]acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate