(2R)-5-(acetyloxymethyl)-2-[(1R)-1-[[(5R)-5-azanyl-6-oxidanyl-6-oxidanylidene-hexanoyl]amino]-2-oxidanylidene-ethyl]-5,6-dihydro-2H-1,3-thiazine-4-carboxylic acid

P15555 — D-alanyl-D-alanine carboxypeptidase