Using CC(C)(C)[Si](C)(C)OCCC(OC1CCCCO1)c1sc(Cl)nc1Cl to produce CC(C)(C)[Si](C)(C)OCCC(OC1CCCCO1)c1scnc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.