3-acetoxy-2,2-dimethyl-5-phenyl-2,5-dihydrofuran

2,5-二甲基-3(2H)呋喃酮

lithium diphenyl cuprate

4-methyl-1-phenyl-pent-2-yne-1,4-diol

5-acetoxy-2-methyl-5-phenyl-3-pentyn-2-ol