Using CC(C)(C)OC(N)=O, C[Si](C)(C)CCOCn1ncc2cc(Br)cnc21 to produce CC(C)(C)OC(=O)Nc1cnc2c(cnn2COCC[Si](C)(C)C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.