Using CN(C[C@H]1C[C@H](Oc2ccc(Cl)c(CN3CCCC3)c2Cl)C1)C(=O)OC(C)(C)C to produce CNC[C@H]1C[C@H](Oc2ccc(Cl)c(CN3CCCC3)c2Cl)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.