LACTACYSTIN, STREPTOMYCES SP | N-Acetyl-S-[(3S,4R)-3-hydroxy-2-[(1S)-1-hydroxy-2-Methylpropyl]-4-Methyl-5-oxo-D-prolyl]-L-cysteine |
3S-HYDROXY-2R-(1-HYDROXY-2-METHYLPROPYL)-4R-METHYL-5-OXO-2-PYRROLIDINECARBOXYLATE-N-ACETYL-L-CYSTEINE | N-ACETYL-S-[(2R,3S,4R)-3-HYDROXY-2-[(1S)-1-HYDROXY-2-METHYLPROPYL]-4-METHYL-5-OXO-2-PYRROLIDINECARBONYL]-L-CYSTEINE |