Asymmetric Hydroboration Approach to the Scalable Synthesis of ((1R,3S)-1-Amino-3-((R)-6-hexyl-5,6,7,8-tetrahydronaphthalen-2-yl)cyclopentyl)methanol (BMS-986104) as a Potent S1P1 Receptor Modulator

  • J Med Chem. 2016 Dec 22;59(24):11138-11147. doi: 10.1021/acs.jmedchem.6b01433.
Michael G Yang  1 Zili Xiao  1 T G Murali Dhar  1 Hai-Yun Xiao  1 John L Gilmore  1 David Marcoux  1 Jenny H Xie  1 Kim W McIntyre  1 Tracy L Taylor  1 Virna Borowski  1 Elizabeth Heimrich  1 Yu-Wen Li  1 Jianlin Feng  1 Alda Fernandes  1 Zheng Yang  1 Praveen Balimane  1 Anthony M Marino  1 Georgia Cornelius  1 Bethanne M Warrack  1 Arvind Mathur  1 Dauh-Rurng Wu  1 Peng Li  1 Anuradha Gupta  1 Bala Pragalathan  1 Ding Ren Shen  1 Mary Ellen Cvijic  1 Lois D Lehman-McKeeman  1 Luisa Salter-Cid  1 Joel C Barrish  1 Percy H Carter  1 Alaric J Dyckman  1
Affiliations
  • 1. Research and Development, Bristol-Myers Squibb Company , Princeton, New Jersey 08543-4000, United States.
Abstract

We describe a highly efficient route for the synthesis of 4a (BMS-986104). A key step in the synthesis is the asymmetric hydroboration of trisubstituted alkene 6. Particularly given the known difficulties involved in this type of transformation (6 → 7), the current methodology provides an efficient approach to prepare this class of compounds. In addition, we disclose the efficacy of 4a in a mouse EAE model, which is comparable to 4c (FTY720). Mechanistically, 4a exhibited excellent remyelinating effects on lysophosphatidylcholine (LPC) induced demyelination in a three-dimensional brain Cell Culture assay.

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