336870-02-1

Ampicillin Impurity 45 (S)-a-(Boc-amino)-4-hydroxy-cyclohexaneacetic acid (2S)-[(tert-butoxycarbonyl)amino](4-hydroxycyclohexyl)ethanoic acid (S)-2-((tert-butoxycarbonyl)amino)-2-(4-hydroxycyclohexyl)acetic acid (2S)-2-{[(tert-butoxy)carbonyl]amino}-2-(4-hydroxycyclohexyl)acetic acid Cyclohexaneacetic acid, α-[[(1,1-dimethylethoxy)carbonyl]amino]-4-hydroxy-, (αS)-