Synthesis of Mavatrep: A Potent Antagonist of Transient Receptor Potential Vanilloid-1
2015
The process development of Mavatrep (1), a potent transient receptor potential vanilloid-1 (TRPV1) antagonist, is described. The two key synthetic transformations are the synthesis of (E)-6-bromo-2-(4-(trifluoromethyl)styryl)1H-benzo[d]imidazole (4) and the Suzuki coupling of 4 with 3,3-dimethyl-3H-benzo[c][1,2]oxaborol-1-ol (5). Compound 1a was prepared in four chemical steps in 63% overall yield.
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