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. Author manuscript; available in PMC: 2018 Aug 18.
Published in final edited form as: Eur J Med Chem. 2017 May 11;136:393–405. doi: 10.1016/j.ejmech.2017.05.031

Scheme 2.

Scheme 2

Synthesis of compound 7p, a water-soluble analog of the indole-2-carboxylic acid ester of MMB (7a). Reagents: a) dimethylamine, methanol, RT, 6 h; b) 6a, EDCI, DMAP, DCM, RT, 8 h; c) Fumaric acid, ethanol.