英文同义词: | 2-(tert-Bytyl)-5-(1-methylethylidene)-1,3-cyclopentadiene;3-tert-Butyl-6,6-dimethylfulvene;2-(tert-Butyl)-5-(propan-2-ylidene)-cyclopenta-1,3-diene;2-tert-Butyl-6,6-dimethylfulvene;2-(1,1-dimethylethyl)-5-(1-methylethylidene)-1,3-Cyclopentadie;1,3-Cyclopentadiene, 2-(1,1-dimethylethyl)-5-(1-methylethyli...;1,3-Cyclopentadiene, 2-(1,1-dimethylethyl)-5-(1-methylethylidene)- |