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. Author manuscript; available in PMC: 2022 Sep 26.
Published in final edited form as: Bioorg Med Chem Lett. 2020 Sep 12;30(24):127543. doi: 10.1016/j.bmcl.2020.127543

Scheme 7.

Scheme 7.

Synthesis of 44. Reagents and conditions: (a) NaClO2, NaH2PO4, 2-methyl-2-butene, t-BuOH/H2O, rt, 4 h, 40 mg (b) EDC, DIPEA, 4-chloroaniline, THF/DMF, rt, 16 h, 38%.