Using C=C[Sn](CCCC)(CCCC)CCCC, CCOP(=O)(COc1ccc(Br)cc1[N+](=O)[O-])OCC to produce C=Cc1ccc(OCP(=O)(OCC)OCC)c([N+](=O)[O-])c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.