Using COC(=O)NC(C(=O)N1CN(C(=O)OC(C)(C)C)CC1C(=O)OC)C(C)C, CCN(C(C)C)C(C)C to produce COC(=O)NC(C(=O)N1CN(C(C)=O)CC1C(=O)OC)C(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.