Using CCOC(=O)NC1CC2(CCN(c3ccc4cc(Cl)ccc4n3)CC2)C1 to produce NC1CC2(CCN(c3ccc4cc(Cl)ccc4n3)CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.