Using O=C1c2ccccc2C(=O)N1C[C@H]1CO1, O=C=Nc1ccc(N2CCOCC2=O)cc1 to produce O=C1c2ccccc2C(=O)N1C[C@H]1CN(c2ccc(N3CCOCC3=O)cc2)C(=O)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.