7-benzyloxy-4,8-dimethoxy-furo[2,3-b]quinoline

7-(2'-hydroxy-3'-methoxy-prenyloxy)-4,8-dimethoxyfuroquinoline

haplosidine

haplosinine

4,8-dimethoxy-furo[2,3-b]quinolin-7-yl tri-O-acetyl-α-L-6-deoxy-mannopyranoside