Bicarbonate Ion → 2,8-Dimethyl-4-oxo-4H-1-benzopyran-5-carbonitrile

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[C:19](=[O:20])([OH:21])[O-:22].[CH3:36][CH2:37][O:38][C:39](=[O:40])[CH3:41].[Cu:24][C:25]#[N:26].[N:15]([O-:16])=[O:17].[NH2:1][c:2]1[c:3]2[c:4](=[O:14])[cH:5][c:6]([CH3:13])[o:7][c:8]2[c:9]([CH3:12])[cH:10][cH:11]1.[Na+:18].[Na+:23].[Na:27][C:28]#[N:29].[OH2:35].[S:30](=[O:31])(=[O:32])([OH:33])[OH:34]>>[c:2]1([C:25]#[N:26])[c:3]2[c:4](=[O:14])[cH:5][c:6]([CH3:13])[o:7][c:8]2[c:9]([CH3:12])[cH:10][cH:11]1