Journal : J Med Chem
Title : 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 S1P Receptor Modulator.
Year : 2016
Volume : 59
Issue : 24.0
First Page : 11138
Last Page : 11147
Authors : Yang MG,Xiao Z,Dhar TG,Xiao HY,Gilmore JL,Marcoux D,Xie JH,McIntyre KW,Taylor TL,Borowski V,Heimrich E,Li YW,Feng J,Fernandes A,Yang Z,Balimane P,Marino AM,Cornelius G,Warrack BM,Mathur A,Wu DR,Li P,Gupta A,Pragalathan B,Shen DR,Cvijic ME,Lehman-McKeeman LD,Salter-Cid L,Barrish JC,Carter PH,Dyckman AJ
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.