Using CC(C)(C)OC(=O)OC(=O)OC(C)(C)C, OCC1CCN(C[C@H]2CN(Cc3ccc(Cl)cc3Cl)C[C@@H]2c2ccsc2)CC1 to produce COCC1CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.