Using CCCC[Sn](CCCC)(CCCC)c1cnc(NC(=O)OC(C)(C)C)s1, Oc1cccc(-c2nc(Br)c3sccc3n2)c1 to produce Nc1ncc(-c2nc(-c3cccc(O)c3)nc3ccsc23)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.