methyl (R)-2-(2-(ethoxycarbonyl)ethynyl)pyridine-1(2H)-carboxylate

methyl (R)-2-(3-ethoxy-3-oxopropyl)-3,4-dihydropyridine-1(2H)-carboxylate

N-phenylcarbonyl-D-norvaline ethyl ester

(3R,4R)-3-hydroxy-4-[(N-phenylmethyl)amino]-1-heptene

(3aS,5aS,9aR)-9a-propylhexahydro-5H-furo[2,3-b]pyrrolo[1,2-d][1,4]oxazin-2(1H)-one