Using N#Cc1c(OS(=O)(=O)C(F)(F)F)nc(N)nc1SCCc1ccccn1, CCCC[Sn](CCCC)(CCCC)C1=CCCO1 to produce N#Cc1c(SCCc2ccccn2)nc(N)nc1C1=CCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.