Using CCCC[Sn](Cl)(CCCC)CCCC, CC(C)(C)OC(=O)N(c1ccc(N2CCOCC2)cc1)c1ncc(Br)n2ncnc12 to produce CCCC[Sn](CCCC)(CCCC)c1cnc(N(C(=O)OC(C)(C)C)c2ccc(N3CCOCC3)cc2)c2ncnn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.