4-(5-Hydroxy-5-propoxycarbonyl-pentyl)-piperidine-1-carboxylic acid benzyl ester

(R)-3-<(S)-1-ethoxycarbonyl-5-(4-piperidyl)pentyl>amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazapine-5-acetic acid