Using CCCC[Sn](Cl)(CCCC)CCCC, COc1ccc(CNC2(c3nccs3)CCC2)cc1 to produce CCCC[Sn](CCCC)(CCCC)c1cnc(C2(NCc3ccc(OC)cc3)CCC2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.