Using C[Si](C)(C)CCOCCl, COc1ccc(COCc2cnc3oc(C(=O)Nc4ncccc4Br)cc3c2)cc1 to produce COc1ccc(COCc2cnc3oc(C(=O)N(COCC[Si](C)(C)C)c4ncccc4Br)cc3c2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.