Using COCCBr, CC(C)n1ncnc1-c1nc2c(s1)CCOc1ccc(-c3ccc[nH]c3=O)cc1-2 to produce COCCn1cccc(-c2ccc3c(c2)-c2nc(-c4ncnn4C(C)C)sc2CCO3)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.