Using COC(=O)C1CCCN(C(=O)OC(C)(C)C)C1, C[Si](C)(C)N[Si](C)(C)C to produce COC(=O)C1(C)CCCN(C(=O)OC(C)(C)C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.