124194-25-8 Boc-gdpn Boc-gly-dehydro-phe-nhch3 Carbamic acid, (2-((1-((methylamino)carbonyl)-2-phenylethenyl)amino)-2-oxoethyl)-, 1,1-dimethylethyl ester, (Z)- tert-Butyloxycarbonyl-glycyl-dehydrophenylalaninamide-N-methyl