4,4-dimethylbicyclo[3.2.1]oct-6-en-3-one

3-Chlor-4,4-dimethylbicyclo[3.2.1]octa-2,6-dien

4-(1,1-Dimethyl-2-propinyl)-2-cyclopenten-1-ol

2-丙炔-1-醇

2-甲基-3-丁炔-2-醇