1-[(S)-benzosuber-1-yloxycarbonyloxy]ethyl (1R,5S,6S)-2-{[(3S,5S)-5-(N,N-dimethylcarbamoyl)pyrrolidin-3-yl]thio}-6-[(1R)-1-hydroxyethyl]-1-methylcarbapen-2-em-3-carboxylate
1450666-42-8