脂环醇则从连有羟基的环碳原子开始编号: CHCH 3 CH3 CH3 CH3-C—C-CH OHOH OH OH OH OH OH OH OMe CHO脂环醇则从连有羟基的环碳原子开始编号： OH CH2 CH3 OH OH CH3 C C CH3 CH3 CH3 OH OH OH OMe OH CHO OH OH