1375541-21-1Relevant articles and documents
Phase-Transfer-Catalyzed Asymmetric Annulations of Alkyl Dihalides with Oxindoles: Unified Access to Chiral Spirocarbocyclic Oxindoles
Gao, Min,Hu, Lin,Li, Xuemin,Li, Yongyi
supporting information, p. 875 - 880 (2022/02/05)
A general phase-transfer-catalyzed asymmetric (n+1) (n = 4 or 5) annulation reaction, featuring the direct coupling of simple oxindoles with alkyl dihalides that are allylic/benzylic and non-allylic/benzylic, has been developed to provide previously inacc
Calcitonin gene-related peptide (CGRP) receptor antagonist treatment of migraine
Gras
, p. 869 - 879 (2020/01/21)
Migraine is ranked as the sixth cause of years lost due to disability, with around 1.04 billion migraine sufferers globally. Triptans are considered the standard for acute migraine treatment, but an important number of migraineurs do not respond to them and these drugs are contraindicated in patients with cardiovascular disease. Migraine therapy is currently undergoing tremendous development, i.e., 5-HT1F receptor agonists (ditans), anti-calcitonin gene-related peptide (CGRP) monoclonal antibodies, and small-molecule CGRP receptor antagonists (gepants). Ubrogepant (MK-1620) is a small-molecule, potent and selective CGRP receptor antagonist. In two phase III clinical trials (ACHIEVE I and II), ubrogepant showed, at 2 hours, significant percentages of pain freedom, and absence of the most bothersome symptoms in migraine patients. In a phase III study to assess the long-term (52-week) safety and tolerability, ubrogepant displayed good tolerability, and no signs of hepatic toxicity. In March 2019, the U.S. Food and Drug Administration accepted the new drug application (NDA) for ubrogepant for the acute treatment of migraine.
Practical Asymmetric Synthesis of a Calcitonin Gene-Related Peptide (CGRP) Receptor Antagonist Ubrogepant
Yasuda, Nobuyoshi,Cleator, Ed,Kosjek, Birgit,Yin, Jianguo,Xiang, Bangping,Chen, Frank,Kuo, Shen-Chun,Belyk, Kevin,Mullens, Peter R.,Goodyear, Adrian,Edwards, John S.,Bishop, Brian,Ceglia, Scott,Belardi, Justin,Tan, Lushi,Song, Zhiguo J.,Dimichele, Lisa,Reamer, Robert,Cabirol, Fabien L.,Tang, Weng Lin,Liu, Guiquan
, p. 1851 - 1858 (2017/11/24)
The development of a scalable asymmetric route to a new calcitonin gene-related peptide (CGRP) receptor antagonist is described. The synthesis of the two key fragments was redefined, and the intermediates were accessed through novel chemistry. Chiral lactam 2 was prepared by an enzyme mediated dynamic kinetic transamination which simultaneously set two stereocenters. Enzyme evolution resulted in an optimized transaminase providing the desired configuration in >60:1 syn/anti. The final chiral center was set via a crystallization induced diastereomeric transformation. The asymmetric spirocyclization to form the second fragment, chiral spiro acid intermediate 3, was catalyzed by a novel doubly quaternized phase transfer catalyst and provided optically pure material on isolation. With the two fragments in hand, development of their final union by amide bond formation and subsequent direct isolation is described. The described chemistry has been used to deliver over 100 kg of our desired target, ubrogepant.
Process for Making CGRP Receptor Antagonists
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, (2016/06/01)
The invention encompasses a novel process for making piperidinone carboxamide indane and azainane derivatives, which are CGRP receptor antagonists useful for the treatment of migraine.
PYRIDINE CGRP RECEPTOR ANTAGONISTS
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, (2013/12/03)
The present invention is directed to pyridine derivatives which are antagonists of CGRP receptors and useful in the treatment or prevention of diseases in which CGRP is involved, such as migraine. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.
FUSED HETEROCYCLIC AZAINDANE CARBOXAMIDE CGRP RECEPTOR ANTAGONISTS
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, (2013/05/22)
The present invention is directed to fused heterocyclic azaindane carboxamide derivatives which are antagonists of CGRP receptors and useful in the treatment or prevention of diseases in which the CGRP is involved, such as migraine. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.
BIS-QUARTERNARY CINCHONA ALKALOID SALTS AS ASYMMETRIC PHASE TRANSFER CATALYSTS
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, (2013/09/26)
The invention is directed to novel bis-quarternary cinchona alkaloid salts and the use of bis-quarternary cinchona alkaloid salts in asymmetric phase transfer catalysis. The present invention is directed to novel bis-quarternary cinchona alkaloid salts an
PROCESS FOR MAKING CGRP RECEPTOR ANTAGONISTS
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, (2013/12/03)
The disclosure encompasses a novel process for making piperidinone carboxamide indane and azainane derivatives, having less steps and improved yields as compared to previous synthetic methods for making these compounds, which are CGRP receptor antagonists, useful for the treatment of migrane. Conditions for an amide bond formation between an acid and amine include for example reacting the compounds of Formulae B (after salt break) and C with an amide coupling reagent and optionally an additive and an acid and/or a base in a non-reactive solvent.
PIPERIDINONE CARBOXAMIDE AZAINDANE CGRP RECEPTOR ANTAGONISTS
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, (2012/05/21)
The present invention is directed to piperidinone carboxamide azaindane derivatives which are antagonists of CGRP receptors and useful in the treatment or prevention of diseases in which the CGRP is involved, such as migraine. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.