Using O=C1CCOCC1, CNCCc1ccc2[nH]c(C)c(C(=O)OCc3ccccc3)c2c1 to produce Cc1[nH]c2ccc(CCN(C)C3CCOCC3)cc2c1C(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.