| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 | 
|---|---|---|---|---|
| —— | 2,2-Dimethyl-propionic acid 2-((2R,3R)-2-carboxymethylsulfanyl-4-oxo-3-phenylacetylamino-azetidin-1-yl)-acetoxymethyl ester | 202919-05-9 | C21H26N2O8S | 466.512 | 
| —— | 2-(3-phenylacetamido-4-thiol-(3R,4R)-azetidin-2-on-1-yl)-pivaloyloxymethyl acetate | 122691-75-2 | C19H24N2O6S | 408.475 |