Using O=C(CCNCC1COc2ccccc2O1)Nc1ccc2c(c1)OCO2 to produce c1ccc2c(c1)OCC(CNCCCNc1ccc3c(c1)OCO3)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.