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Monday, August 24 • 4:40pm - 5:20pm
[0129] Synthesis of a Highly Functionalized Octahydro-Isoindole-Based NK1 Receptor Antagonist

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Limited Capacity seats available

Primarily associated with sensory neurons and located within specific areas of the central nervous system (CNS), neurokinin-1 (NK-1) is a member of the seven-transmembrane G-protein-coupled receptor family.  The tachykinin peptide Substance P is the natural ligand for NK-1 and has been implicated in the pathophysiology of a wide range of dieases including anxiety, asthma, cystitis, emesis, inflammatory bowel disease, migraine, movement disorders, pain, and psoriasis.  Merck has identified an octahydro-isoindole-based compound 1 which has significant binding affinity (sub-nanomolar) for the hNK-1 receptor.  Compound 1 contains five stereocenters: a central core possessing four contiguous all-trans stereocenters, a pendent bis(trifluoromethyl)benzylic ether, and a cyclopentenone moiety.  In order to fully evaluate this compound, an efficient and practical synthesis was required which would allow for the preparation of multi-kilogram quantities to support both pre-clinical and clinical development.  Key to the success of the preparation of 1 was control of the relative and absolute stereochemistry.  This presentation will address the evolution of a highly efficient asymmetric synthesis of 1.


Invited Lecturers
avatar for Jeff Kuethe

Jeff Kuethe

Principal Scientist, Merck & Co.


Monday August 24, 2015 4:40pm - 5:20pm
MCC Theater