O-Benzoyl-atrolactinsaeure-ethylester

乙基(2R)-2-苯丙酸酯

(+/-)-2-Methyl-2-phenyl-3-oxo-bernsteinsaeure-diethylester

乙基2-重氮基丙酸酯

2,2-dicyano, 3-methyl-3-phenyloxirane