Using CC(C)(C)[Si](C)(C)OCCc1cnc2c(n1)Nc1ccccc1S2, COCCl to produce COCN1c2ccccc2Sc2ncc(CCO[Si](C)(C)C(C)(C)C)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.