Using COC(=O)CNC[C@@H]1C[C@@H](Oc2cnc(C3CC3)cn2)CN1C(=O)OC(C)(C)C to produce COC(=O)CNC[C@@H]1C[C@@H](Oc2cnc(C3CC3)cn2)CN1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.