Ethanol → 4-(4-methoxy-3-nitro-phenyl)-3,6-dihydro-2H-pyran

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[CH3:15][O:16][c:17]1[c:18]([N+:32](=[O:33])[O-:34])[cH:19][c:20]([B:23]2[O:24][C:25]([CH3:26])([CH3:27])[C:28]([CH3:29])([CH3:30])[O:31]2)[cH:21][cH:22]1.[CH3:41][c:42]1[cH:43][cH:44][cH:45][cH:46][cH:47]1.[CH3:48][CH2:49][OH:50].[Na+:35].[Na+:36].[O-:37][C:38](=[O:39])[O-:40].[O:1]1[CH2:2][CH2:3][C:4]([O:7][S:8]([C:9]([F:10])([F:11])[F:12])(=[O:13])=[O:14])=[CH:5][CH2:6]1>>[O:1]1[CH2:2][CH2:3][C:4]([c:20]2[cH:19][c:18]([N+:32](=[O:33])[O-:34])[c:17]([O:16][CH3:15])[cH:22][cH:21]2)=[CH:5][CH2:6]1