H3C、 2. CH-CH3 CH-CH2--C CH2CH3 H3CH2C、∠H CH2CH3 CH2CH3 CH2CH3 CH2CH3 第8页共8页CH H3C H3C CH3 CH H3C H3C CH2 C H Ph C Ph O 2. & H OH CH2CH3 H OH CH2CH3 H OH CH2CH3 HO H CH2CH3 H OH H H H3CH2C CH2CH3 3. 第 8 页 共 8 页