Using CCOC(=O)c1c(CCCCN(CC)CC)[nH]c(C(=O)OC(C)(C)C)c1C to produce CCN(CC)CCN1CCCCc2[nH]c(C=O)c(C)c2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.