4H-6-Amino-5-cyan-1,3,4-triphenyl-pyrano<2,3-c>pyrazol

2-苯并咪唑酮

2.4(1H.3H)-嘧啶二酮

N-甲基氨基甲酸丁酯

1,4-dimethyl-2-oxo-2-phenoxy-1,4,2λ⁵-diazaphospholidin-5-one