Sodium Ion → 1-(4-Bromophenyl)-6,6-dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione

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[Br:1][c:2]1[cH:3][cH:4][c:5]([CH:6]=[C:7]2[C:8](=[O:16])[O:9][C:10]([CH3:14])([CH3:15])[O:11][C:12]2=[O:13])[cH:17][cH:18]1.[CH3:22][S+:23]([CH3:24])([CH3:25])=[O:26].[CH3:27][CH2:28][O:29][C:30](=[O:31])[CH3:32].[H-:19].[I-:21].[Na+:20].[O:33]=[CH:34][N:35]([CH3:36])[CH3:37]>>[Br:1][c:2]1[cH:3][cH:4][c:5]([CH:6]2[C:7]3([C:8](=[O:16])[O:9][C:10]([CH3:14])([CH3:15])[O:11][C:12]3=[O:13])[CH2:22]2)[cH:17][cH:18]1