Using CCOC(=O)CCCn1c(=O)n(CCN2CCN(c3ccccc3OC)CC2)c(=O)c2ccccc21 to produce COc1ccccc1N1CCN(CCn2c(=O)c3ccccc3n(CCCC(=O)O)c2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.