Using CCOC(=O)[C@@H]1CN(C(=O)OC(C)(C)C)CC[C@@H]1c1ccnc(OC)c1 to produce CCOC(=O)[C@@H]1CN(C(=O)OC(C)(C)C)CC[C@H]1c1ccnc(OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.