Scheme 2. Reagents and conditions. (a) TFA, DCM, rt; (b) benzophenone-4-carboxylic acid, EDCI, HOBt, DIPEA, DMF, 52% over 2 steps; (c) LiOH, H2O, DME; (d) TBSCl, Imidazole, DMF; (e) MeOH, 60% over 3 steps; (f) 10, EDCI, HOBt, DIPEA, DMF, 91%; (g) TBAF, THF, 60%.
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- Crump CJ, Am Ende CW, Eric Ballard T, Pozdnyakov N, Pettersson M, Chau DM, Bales KR, Li YM, Johnson DS
- Bioorg Med Chem Lett. 2012 Apr 15;22(8):2997-3000.
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