Br[C:2]1[C:10]2[S:9][C:8]([S:11][CH3:12])=[N:7][C:6]=2[CH:5]=[CH:4][CH:3]=1.[C:13]([Cu])#[N:14]>CN(C=O)C>[CH3:12][S:11][C:8]1[S:9][C:10]2[C:2]([C:13]#[N:14])=[CH:3][CH:4]=[CH:5][C:6]=2[N:7]=1The title compound was prepared from 7-bromo-2-methylsulfanyl-1,3-benzothiazole by heating with CuCN (1.0 eq.) in DMF at 160° C. for 12 h.
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