Here, three typical 3-O-substituted quercetin derivatives, 3-O-Mthyl-quercetin, Hirsutrin and Quercetin-3-O-( 2G-glucosyl)-rutinoside, had been selected as targets in our synthetic study, attempting to find facile methods for the synthesis of 3-O-substituted quercetin. 本课题中,选择了3-O-甲基槲皮素,陆地棉苷和槲皮素-3-O-(2G-葡萄糖)芸香糖苷3个典型的3-取代槲皮素类化合物作为合成目标,探索相对简便的合成3-取代槲皮素衍生物的方法。