Using COc1cc2oc(=O)c3c(c2cc1OC)CCNC3, ClCCN1CCOCC1 to produce COc1cc2oc(=O)c3c(c2cc1OC)CCN(CCN1CCOCC1)C3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.