Using CS(=O)(=O)OCc1ccc(-c2nc(-c3ccccc3)cc(-c3ccccc3)n2)cc1, COC(=O)[C@H](CS)NC(=O)OC(C)(C)C to produce COC(=O)C(CSCc1ccc(-c2nc(-c3ccccc3)cc(-c3ccccc3)n2)cc1)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.