Using Brc1cc2c(-c3ccccc3)nn(C3CCCCO3)c2cn1, CCCC[Sn](CCCC)(CCCC)C1=CCOC1=O to produce O=C1C=C(c2cc3c(-c4ccccc4)nn(C4CCCCO4)c3cn2)CO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.