Using CC(=O)NNC(=O)C1(C)COC(C)(C)N1C(=O)OC(C)(C)C to produce Cc1nnc(C2(C)COC(C)(C)N2C(=O)OC(C)(C)C)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.