Using CC(C)(C)OC(=O)n1ncc2c(Cl)nc(N)nc21, CCCC[Sn](CCCC)(CCCC)c1ccco1 to produce CC(C)(C)OC(=O)n1ncc2c(-c3ccco3)nc(N)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.