Using CN(Cc1cccc(-c2ccc(N)cc2)c1)C(=O)CNC(=O)OC(C)(C)C, O=C(O)c1cccnc1 to produce CN(Cc1cccc(-c2ccc(NC(=O)c3cccnc3)cc2)c1)C(=O)CNC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.