Using O=C(Cl)Cl, NNC(=O)OCC1c2ccccc2-c2ccccc21 to produce O=c1[nH]nc(OCC2c3ccccc3-c3ccccc32)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.