Synthesis 2023; 55(15): 2397-2405
DOI: 10.1055/a-1989-2633
paper
Special Issue dedicated to Prof. David A. Evans

Desymmetrization of a Propane-1,3-diol to Introduce the Quaternary Chiral Center of an AMG 176 Drug Substance Intermediate

Padmini K. Ananthoji
a   Process Development, Amgen Inc., 360 Binney Street, Cambridge, Massachusetts 02142, USA
,
Athimoolam Arunachalampillai
b   Syngene Amgen Research & Development Center, Biocon Park, Plot No. 2 & 3, Bommasandra IV Phase, Jigni Link Road, Bangalore 560099, India
,
Matthew G. Beaver
a   Process Development, Amgen Inc., 360 Binney Street, Cambridge, Massachusetts 02142, USA
,
Yuan-Qing Fang
a   Process Development, Amgen Inc., 360 Binney Street, Cambridge, Massachusetts 02142, USA
,
Simon J. Hedley
c   Process Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, USA
,
Brian S. Lucas
d   Department of Therapeutic Discovery, Amgen Inc., 1120 Veterans Boulevard, South San Francisco, California 94080, USA
,
Jason S. Tedrow
c   Process Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, USA
,
Margaret M. Faul
c   Process Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, USA
› Author Affiliations


This article is dedicated to Professor David A. Evans, a friend and mentor, for his outstanding contributions to the organic chemistry community, his dedication to the education of an outstanding generation of undergraduate students, graduate students and post docs, and his excellence as a teacher to the broader organic chemistry community. Professor Evans will be remembered fondly and deeply missed.

Abstract

A chiral Cu(II)-PyBOX complex was prepared and utilized to accomplish desymmetrization of a 1,3-diol en route to AMG 176. An expedient synthesis of the racemic 1,3-diol is described, in addition to efforts for rapid optimization and subsequent kilogram-scale execution of the desymmetrization process to generate material for pre-clinical activities. An overview of the kilogram-scale synthesis of the Cu(II)-PyBOX complex is provided.

Supporting Information



Publication History

Received: 20 November 2022

Accepted: 29 November 2022

Accepted Manuscript online:
29 November 2022

Article published online:
10 January 2023

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