Using Oc1ccc(-n2cccn2)cc1, O=C(NCCO)OCc1ccccc1 to produce O=C(NCCOc1ccc(-n2cccn2)cc1)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.