Using COC(=O)OC, CC(C)(C)OC(=O)N1CC2CC(=O)CC(C1)N2C(=O)OC(C)(C)C to produce COC(=O)C1C(=O)CC2CN(C(=O)OC(C)(C)C)CC1N2C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.