6-bromo-2',3',5',6'-tetrahydrospiro[indoline-3,4'-pyran] 、
4,6-dichloro-7-methoxy-2,3-dimethylquinoline 以to give 6-bromo-1-(6-chloro-7-methoxy-2,3-dimethyl-4-quinolinyl)-1,2,2′,3′,5′,6′-hexahydrospiro[indole-3,4′-pyran] as a: 1H NMR (500 MHz, DMSO-d6) δ ppm 7.65 (1H, s), 7.58 (1H, s), 7.21 (1H, d, J=8.1 Hz), 6.82 (1H, dd, J=7.8, 1.7 Hz), 5.90 (1H, d, J=1.7 Hz), 3.96-4.05 (4H, m), 3.82-3.92 (3H, m), 3.41-3.53 (2H, m), 2.66 (3H, s), 2.17 (3H, s), 1.95-2.06 (2H, m), 1.85 (1H, dd, J=13.4, 1.7 Hz), 1.72 (1H, dd, J=13.3, 1.8 Hz)的产率得到6-bromo-1-(6-chloro-7-methoxy-2,3-dimethyl-4-quinolinyl)-1,2,2',3',5',6'-hexahydrospiro[indole-3,4'-pyran]