Using C=C(OCC)[Sn](CCCC)(CCCC)CCCC, CC1(C)Oc2cc(N)cc(Br)c2N(c2ccc(F)cc2)C1=O to produce C=C(OCC)c1cc(N)cc2c1N(c1ccc(F)cc1)C(=O)C(C)(C)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.