Using C=C(OCC)[Sn](CCCC)(CCCC)CCCC, Brc1cccc2ccc(-c3ccccc3)nc12 to produce C=C(OCC)c1cccc2ccc(-c3ccccc3)nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.