Using CCOC(=O)C1CNCCN1, COc1cc(C(=O)Cl)cc(OC)c1OC to produce CCOC(=O)C1CN(C(=O)c2cc(OC)c(OC)c(OC)c2)CCN1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.