[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([OH:11])[CH:9]=2)[C:4]([C:12](=[O:20])[C:13]2[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][CH:14]=2)=[C:3]1[CH2:21][C:22]([CH3:28])([CH3:27])[C:23]([O:25][CH3:26])=[O:24].C([O-])([O-])=O.[K+].[K+].Br[CH2:36][C:37]1[CH:46]=[CH:45][C:44]2[C:39](=[CH:40][CH:41]=[CH:42][CH:43]=2)[N:38]=1>CN(C=O)C>[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([O:11][CH2:36][C:37]3[CH:46]=[CH:45][C:44]4[C:39](=[CH:40][CH:41]=[CH:42][CH:43]=4)[N:38]=3)[CH:9]=2)[C:4]([C:12](=[O:20])[C:13]2[CH:14]=[CH:15][C:16]([Cl:19])=[CH:17][CH:18]=2)=[C:3]1[CH2:21][C:22]([CH3:28])([CH3:27])[C:23]([O:25][CH3:26])=[O:24]To a solution of 180 mg of the phenol from Step E in 5 mL of DMF were added 124 mg of milled K2CO3 followed by 150 mg of 2-(bromomethyl) quinoline. The mixture was stirred at R.T. for 18 h, poured onto 25% aq. NH4OAc and extracted with ethyl acetate. The extract was dried over Na2SO4 and evaporated to dryness to give an oil which was chromatographed on flash silica gel using ethyl acetate:hexane (30:70) as eluant to give the title compound as a foam.
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