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. Author manuscript; available in PMC: 2023 Mar 1.
Published in final edited form as: ACS Chem Neurosci. 2018 May 2;9(7):1840–1848. doi: 10.1021/acschemneuro.8b00139

Scheme 5a.

Scheme 5a

a(ix) (R)-(+)-2-methyl-2-propanesulfinamide, then NaBH4. (x) HCl, then diBocDmt, PyBOP, 6-Cl HOBt, DIPEA, then TFA. (xi) LiOH (prior to TFA deprotection).