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Home > Publication > Discovery of (1S,2R,3S,4S,5R,6R)-2-Amino-3-[(3,4-difluorophenyl)sulfanylmethyl]-4-hydroxy-bicyclo[3.1.0]hexane-2,6-dicarboxylic Acid Hydrochloride (LY3020371·HCl): A Potent, Metabotropic Glutamate 2/3 Receptor Antagonist with Antidepressant-Like Activity.

Discovery of (1S,2R,3S,4S,5R,6R)-2-Amino-3-[(3,4-difluorophenyl)sulfanylmethyl]-4-hydroxy-bicyclo[3.1.0]hexane-2,6-dicarboxylic Acid Hydrochloride (LY3020371·HCl): A Potent, Metabotropic Glutamate 2/3 Receptor Antagonist with Antidepressant-Like Activity.

Chappell MD, Li R, Smith SC, Dressman BA, Tromiczak EG, Tripp AE, Blanco MJ, Vetman T, Quimby SJ, Matt J, Britton TC, Fivush AM, Schkeryantz JM, Mayhugh D, Erickson JA, Bures MG, Jaramillo C1, Carpintero M1, Diego JE1, Barberis M1, Garcia-Cerrada S1, Sori

J Med Chem. 2016 Dec 22;59(24):10974-10993. Epub 2016 Dec 6.

As part of our ongoing efforts to identify novel ligands for the metabotropic glutamate 2 and 3 (mGlu2/3) receptors, we have incorporated substitution at the C3 and C4 positions of the (1S,2R,5R,6R)-2-amino-bicyclo[3.1.0]hexane-2,6-dicarboxylic acid scaffold to generate mGlu2/3 antagonists. Exploration of this structure-activity relationship (SAR) led to the identification of (1S,2R,3S,4S,5R,6R)-2-amino-3-[(3,4-difluorophenyl)sulfanylmethyl]-4-hydroxy-bicyclo[3.1.0]hexane-2,6-dicarboxylic acid hydrochloride (LY3020371·HCl, 19f), a potent, selective, and maximally efficacious mGlu2/3 antagonist. Further characterization of compound 19f binding to the human metabotropic 2 glutamate (hmGlu2) site was established by cocrystallization of this molecule with the amino terminal domain (ATD) of the hmGlu2 receptor protein. The resulting cocrystal structure revealed the specific ligand-protein interactions, which likely explain the high affinity of 19f for this site and support its functional mGlu2 antagonist pharmacology. Further characterization of 19f in vivo demonstrated an antidepressant-like signature in the mouse forced-swim test (mFST) assay when brain levels of this compound exceeded the cellular mGlu2 IC50 value.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
ACM22237123 3-Amino-4-methylphenylboronic acid hydrochloride 3-Amino-4-methylphenylboronic acid hydrochloride 22237-12-3 Price
ACM677702237 Isoquinoline-4-boronic acid hydrochloride Isoquinoline-4-boronic acid hydrochloride 677702-23-7 Price

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Tel:1-201-478-8534
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Address: 2200 Smithtown Avenue, Room 1 Ronkonkoma, NY 11779-7329 USA