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. Author manuscript; available in PMC: 2020 Apr 7.
Published in final edited form as: J Org Chem. 2020 Mar 19;85(7):4648–4662. doi: 10.1021/acs.joc.9b03371

Scheme 7.

Scheme 7.

Thiol-disulfide exchange studies of ETP 42. Conditions: (a) para-fluorobenzylthiol, (parafluorobenzyl)disulfane, NEt3, THF, 23 °C. (b) NaBH4, MeOH, THF; S-(phenylsulfonyl)-l-glutathione hydrogen chloride, NEt3, MeOH, THF, 23 °C. (c) L-glutathione, NEt3, D2O, CD3CN, 23 °C.