重氮甲烷

4-methoxyfuro[2,3-b]quinoline-7,8-diol

4,7,8-三甲氧基呋喃并[2,3-B]喹啉

(7S,8R)-4-methoxy-7,8-dihydrofuro[2,3-b]quinoline-7,8-diol

4-chloro-7,8-dimethoxyfuro[2,3-b]quinoline