Dimethylformamide → 6-Ethoxypyrazolo[5,1-b][1,3]thiazole-7-carboxylic acid ethyl ester

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[C:15](=[O:16])([O-:17])[O-:18].[CH2:1]([CH3:2])[O:3][C:4](=[O:5])[c:6]1[c:7](=[O:14])[nH:8][n:9]2[c:10]1[s:11][cH:12][cH:13]2.[Cs+:19].[Cs+:20].[I:21][CH2:22][CH3:23].[O:24]=[CH:25][N:26]([CH3:27])[CH3:28]>>[CH2:1]([CH3:2])[O:3][C:4](=[O:5])[c:6]1[c:7]([O:14][CH2:22][CH3:23])[n:8][n:9]2[c:10]1[s:11][cH:12][cH:13]2