Using COC(=O)CCCBr, S=C1N=C2C=CC=CN2C1Cc1csc2ccc(Cl)cc12 to produce COC(=O)CCCSc1nc2ccccn2c1Cc1csc2ccc(Cl)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.