2-hydroxy-4-phenylbut-3-ynenitrile

spiro[cyclobutabenzene-1(2H),3'-diazirine]

2,2-二氟-1,3-二甲基-咪唑烷

3,4-二甲氧基苯丙炔酸

[3,4-(methylenedioxy)phenyl]propiolic acid