甲基锂

2,2,7,7-四甲基-3,5-辛二炔

trans-3-(3,3-dimethyl-1-butynyl)-4-(cumyloxy)-cyclopentanone

(-)-(3Ar,6ar)-3a,6a-二氢-2,2-二甲基-4H-环戊并-1,3-二氧代-4-酮