Early Development Scale-Up of a Structurally-Challenging 5-Lipoxygenase Activating Protein (FLAP) Inhibitor

Autor: Zhidong Chen, Carl A. Busacca, Shengli Ma, Xingzhong Zeng, Peter Allen Nemoto, Paige E. Mahaney, Jason A. Mulder, Chris H. Senanayake, Jun Wang, Nitinchandra D. Patel, Zhibin Li, Todd Bosanac, Daniel R. Fandrick, Jean-Nicolas Desrosiers, Heewon Lee, Sonia Rodriguez, Jon C. Lorenz, Nathan K. Yee, Joe Gao, Nelu Grinberg, Hidenori Takahashi, Alessandra Bartolozzi, Jinhua J. Song, Keith R. Fandrick
Rok vydání: 2017
Předmět:
Zdroj: Organic Process Research & Development. 21:1427-1434
ISSN: 1520-586X
1083-6160
DOI: 10.1021/acs.oprd.7b00202
Popis: A practical and efficient synthesis of the FLAP inhibitor 1 was developed addressing multiple scale-up and safety concerns posed by the established synthesis and utilized a resolution strategy (replacing supercritical fluid chromatography (SFC) separation) for expedient access to the key structural component of 1: the challenging chiral quaternary center. Also highlighted are in situ IR monitoring, condensation to form the 1,2,4-oxadiazole ring, and an efficient Suzuki-Miyaura coupling.
Databáze: OpenAIRE