Using O=C1C=CC(=O)N1Cc1ccccc1, O=C(O)CNCc1ccccc1 to produce O=C1C2CN(Cc3ccccc3)CC2C(=O)N1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.