2-benzyl-5-methoxy-3-(4-methylphenyl)sulfonyl-1,3-oxazolidine

粉青霉酸酐

2-(2-oxo-1-phenylethyl)sulfanylacetic acid

2-phenyl-N-[(Z)-2-phenylethylideneamino]acetamide

(2,2-二乙氧基乙基)-苯