反应详情

3-(dihydroxyborane)benzoic acid (4.65 g, 28.0 mmol) was coupled to tert-butyl 4-{[(trifluoromethyl)sulfonyl]oxy}-3,6-dihydropyridine-1(2H)-carboxylate (6.65 g, 20.0 mmol) in an analogous fashion to that described previously for the synthesis of tert-butyl 4-[3-(ethoxycarbonyl)phenyl]-3,6-dihydropyridine-1(2H)-carboxylate (INTERMEDIATE 6, Step A) to give 3-[1-(tert-butoxycarbonyl)-1,2,3,6-tetrahydropyridin-4-yl]benzoic acid.