Using COc1c(CO)ccn2c(=O)n(COCC[Si](C)(C)C)nc12 to produce COc1c(C=O)ccn2c(=O)n(COCC[Si](C)(C)C)nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.