[Br:1][C:2]1[C:10]([Br:11])=[C:9]2[C:5]([CH2:6][CH:7]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)[C:8]2=[O:12])=[CH:4][C:3]=1[OH:19].Br[CH2:21][C:22]([O:24][CH2:25][CH3:26])=[O:23]>>[Br:1][C:2]1[C:10]([Br:11])=[C:9]2[C:5]([CH2:6][CH:7]([C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=3)[C:8]2=[O:12])=[CH:4][C:3]=1[O:19][CH2:21][C:22]([O:24][CH2:25][CH3:26])=[O:23]Reaction of 6,7-dibromo-5-hydroxy-2-phenyl-1-indanone with ethyl bromoacetate according to the procedure of Example 1, STEP (a), affords the title compound.
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