Using C=C[Sn](CCCC)(CCCC)CCCC, Cc1nc(C)n(-c2cc(Cl)cnn2)n1 to produce C=Cc1cnnc(-n2nc(C)nc2C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.