苯基氰基乙酸乙酯

3-methyl-2-(3-phenoxymethyl-7-oxo-4-thia-2,6-diazabicyclo[3.2.0]hept-2-en-6-yl)-3-butenoic acid diphenylmethyl ester

3,4-diphenyloxadiazol-3-ium-5-amine