Sodium (1S,5R,6S)-2-(4-amino)phenylthiomethyl-6-<(R)-1-hydroxyethyl>-1-methylcarbapen-2-em-3-carboxylate

p-Methoxybenzyl (1S,5R,6S)-2-Hydroxymethyl-1-methyl-6-<(R)-1-trinthylsilyloxyethyl>carbapen-2-em-3-carboxylate

Sodium (1S,5R,6S)-6-<(R)-1-hydroxyethyl>-1-methyl-2-phenylthiomethylcarbapen-2-em-3-carboxylate

Sodium (1S,5R,6S)-6-<(R)-1-hydroxyethyl>-1-methyl-2-(2-pyridyl)thiomethylcarbapen-2-em-3-carboxylate

Sodium (1S,5R,6S)-6-<(R)-1-hydroxyethyl>-1-methyl-2-(3-pyridyl)thiomethylcarbapen-2-em-3-carboxylate