Using CC[Si](CC)(CC)OC(CN)c1c(Cl)cnc2ccccc12, CC(C)(C)C=O to produce CC[Si](CC)(CC)OC(CNCC(C)(C)C)c1c(Cl)cnc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.