Using CN1CCNCC1, O=C(CCl)Nc1ccc2oc3c(c2c1)CCCCC3 to produce CN1CCN(CC(=O)Nc2ccc3oc4c(c3c2)CCCCC4)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.