作者:Shawn P. Allwein、Renee C. Roemmele、James J. Haley、Dale R. Mowrey、Daniel E. Petrillo、James J. Reif、Diane E. Gingrich、Roger P. Bakale
DOI:10.1021/op200313v
日期:2012.1.20
Evolution of the process strategies to prepare CEP-28122, an anaplastic lymphoma kinase (ALK) inhibitor, is presented. The initial medicinal chemistry route, used for the preparation of key supplies for biological screening, is reviewed. In addition, the process research and development of the final optimized process for manufacture of preclinical and clinical supplies is discussed. Details regarding a blocking group strategy for selective nitration; discovery of a one-pot transfer hydrogenation to effect a reductive amination, nitro group reduction, and dehalogenation; an enzymatic resolution of a critical intermediate; and the discovery of a novel, stable, in situ generated mixed mesylate hydrochloride salt of the API are disclosed.