An efficient synthesis of 2-(3-(4-amidinophenylcarbamoyl)naphthalen-2-yl)-5-((2,2-methylpropyl)carbamoyl)benzoic acid: a factor VIIa inhibitor discovered by the Ono Pharmaceutical Company

A small molecule factor VIIa inhibitor has recently been reported by the Ono Pharmaceutical Company. Herein, we outline an efficient and convergent, synthetic route that relies upon a palladium-catalyzed Stille coupling reaction as a key step for the synthesis of the inhibitor.