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Hz, 1H), 7.70 (d, J = 9.2 Hz, 1H), 7.34 (dd, J = 8.8, 7.3 Hz,
1H), 6.39 (d, J = 5.4 Hz, 1H), 4.96 (d, J = 7.5 Hz, 1H), 3.70 (sx,
J = 6.8 Hz, 1H), 3.55 (m, 2H), 2.57 (m, 5H), 2.49 (m, 2H),
1.74–1.62 (m, 1H), 1.65–1.53 (m, 3H), 1.31 (d, J = 6.9 Hz, 3H),
1.24 (d, J = 7.2 Hz, 2H); 13C NMR (125 MHz, CDCl3) δ 152.2,
149.5, 149.2, 135.0, 129.0, 125.4, 121.2, 117.4, 99.4, 58.6, 54.9,
53.18, 48.5, 47.9, 34.5, 24.1, 20.6, 11.9. Spectra were obtained
in accordance with those previously reported [38,39].
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Supporting Information
Supporting Information File 1
Additional experimental descriptions and NMR spectra.
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Acknowledgements
This work was supported by The Defense Advanced Research
Projects Agency (DARPA) (W911NF-16-2-0023). We thank all
members of the two teams (Prof. B. Frank Gupton and Prof.
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