Using C[Si](C)(C)n1cnc(CCCC=O)c1, CC(C)(C)NC(=O)c1ccc(Br)cc1 to produce CC(C)(C)NC(=O)c1ccc(C(O)CCCc2cn([Si](C)(C)C)cn2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.