1-(di-tert-butoxycarbonyl-guanidinomethyl)-3,5-bis[(6-methylpyridin-2-yl)amino-methyl]-2,4,6-triethylbenzene

(E)-5-[N2,N3-bis(tert-butoxycarbonyl)guanidino]-1-[(3,4-dimethoxycinnamoyl)amino]pentane

tert-butyl (E)-3-(5-chloro-2-((2,2,10,10-tetramethyl-4,8-dioxo-3,9-dioxa-5,7-diazaundecan-6-ylidene)amino)pyridin-3-yl)acrylate