156586-96-8 Boc-synlgydpe Boc-tyr(SO3)-nle-gly-tyr-asp-2-phenylethyl ester t-Butyloxycarbonyl-(sulfo-tyr)-nle-gly-tyr-asp-2-phenylethyl ester t-Butyloxycarbonyl-sulfotyrosyl-norleucyl-glycyl-tyrosyl-aspartyl-2-phenylethyl ester