Using CC(C)(C)OC(=O)NCC=O, COc1ccc(CNCCc2ccsc2)cc1 to produce COc1ccc(CN2CCc3ccsc3C2CNC(=O)OC(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.