Using COC(CN1CCNCC1)c1ccc2c(c1C)COC2=O, Cc1c(C2CO2)ccc2c1COC2=O to produce COC(CN1CCN(CC(O)c2ccc3c(c2C)COC3=O)CC1)c1ccc2c(c1C)COC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.