1-[2-(2-丙炔-1-基)环戊基]乙酮

(E)-1-(7-((trimethylsilyl)methylene)bicyclo[3.2.0]heptan-1-yl)ethan-1-one

tert-butyl-[1-(cyclopenten-1-yl)ethenoxy]-dimethylsilane

1-cyclopentyl-3-(dimethylamino)propan-1-one