Using CC(C)(C)[Si](C)(C)OCC(O)C(C#N)c1ccc(Cl)c(Cl)c1, COC(C)(C)OC to produce CC1(C)OCC(C(C#N)c2ccc(Cl)c(Cl)c2)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.