117855-58-0 Acetamide, N-(1-((4-((hydroxyamino)iminomethyl)phenyl)methyl)-2-oxo-2-(1-piperidinyl)ethyl)-2-((2-naphthalenylsulfonyl)amino)-, (S)- N(alpha)-(2-Naphthylsulfonylglycyl)-4-oxamidinophenylalanine piperidide Nas-gly-oxa-phe-pip