Using CCCCn1c(=S)c2[nH]cnc2n(CC)c1=O, CC(=O)CBr to produce CCCCn1c(=S)c2c(ncn2CC(C)=O)n(CC)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.