1380688-27-6

XRCZSPQKQSSDGX-QHSBEEBCSA-N Tibipenem ester ring-opener P2 Tebipenem Pivoxil Impurity 4 (P2) (2S,3R)-2-[(2S,3R)-4-[1-(4,5-dihydro-1,3-thiazol-2-yl)azetidin-3-yl]sulfanyl-5-(2,2-dimethylpropanoyloxymethoxycarbonyl)-3-methyl-2,3-dihydro-1H-pyrrol-2-yl]-3-hydroxybutanoic acid 1H-Pyrrole-2-acetic acid, 4-[[1-(4,5-dihydro-2-thiazolyl)-3-azetidinyl]thio]-5-[[(2,2-dimethyl-1-oxopropoxy)methoxy]carbonyl]-2,3-dihydro-α-[(1R)-1-hydroxyethyl]-3-methyl-, (αS,2S,3R)-