4-(2-phenylpropan-2-yloxy)cyclopent-2-en-1-one

叔丁基锂

rac-(2R,3aS,5aS,8aS)-3a,5,5-trimethyl-6-oxo-1,2,3,3a,4,5,5a,6-octahydrocyclopenta[c]pentalene-2-carboxylic acid

氯甲烷

丁基三甲基锡(IV)