144396-38-3 Boc-tyr(SO3)-nle-gly-tyr-nle-asp-pee CCK-J Cholecystokinin-J L-Aspartic acid, N-(N-(N-(N-(N-(N-((1,1-dimethylethoxy)carbonyl)-O-sulfo-L-tyrosyl)-L-norleucyl)glycyl)-L-tyrosyl)-L_norleucyl)-, 1-(2-phenylethyl) ester tert-Butyloxycarbonyl-sulfotyrosyl-norleucyl-glycyl-tyrosyl-norleucyl-aspartic acid 2-phenylethyl ester