methyl (E)-2-(((benzyloxy)carbonyl)amino)-5-(hydroxymethyl)hept-4-enoate

methyl (E)-5-(acetoxymethyl)-2-(((benzyloxy)carbonyl)amino)hept-4-enoate

methyl (E)-2-(((benzyloxy)carbonyl)amino)-5-(((4-methoxybenzyl)oxy)methyl)hept-4-enoate

2-[(E)-3-(4-Methoxy-benzyloxymethyl)-pent-2-enyl]-3-oxo-pyrrolidine-1-carboxylic acid benzyl ester

benzyl (E)-3-(3-(hydroxymethyl)pent-2-en-1-yl)-1,3-dihydro-2H-pyrrolo[3,4-b]quinoline-2-carboxylate