Using Fc1cc2ncccc2c(F)c1Cn1nnc2ncc(Br)nc21, C=C(OCC)[Sn](CCCC)(CCCC)CCCC to produce C=C(OCC)c1cnc2nnn(Cc3c(F)cc4ncccc4c3F)c2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.