4-Oxazolecarboxylic acid, 2-[(1R)-1-methyl-3-butenyl]-, methyl ester

4-Oxazolecarboxylic acid, 2-[(1R)-1-methyl-3-oxopropyl]-, methyl ester

methyl 2-(4-hydroxy-(2R)-butyl)-4-oxazolecarboxylate

methyl 2-(4-(methanesulfonyl)oxy-(2R)-butyl)-4-oxazolecarboxylate

(2R)-2-methyl-4-pentenamide