[EN] KCNT1 INHIBITORS AND METHODS OF USE<br/>[FR] INHIBITEURS DE KCNT1 ET PROCÉDÉS D'UTILISATION
申请人:PRAXIS PREC MEDICINES INC
公开号:WO2020227097A1
公开(公告)日:2020-11-12
The present invention is directed to, in part, compounds and compositions useful for preventing and/or treating a neurological disease or disorder, a disease or condition relating to excessive neuronal excitability, and/or a gain-of-function mutation in a gene (e.g., KCNT1). Methods of treating a neurological disease or disorder, a disease or condition relating to excessive neuronal excitability, and/or a gain-of-function mutation in a gene such as KCNT1 are also provided herein.
The Selective Cross-Coupling of Secondary Alkyl Zinc Reagents to Five-Membered-Ring Heterocycles Using Pd-PEPPSI-IHept<sup>Cl</sup>
作者:Bruce Atwater、Nalin Chandrasoma、David Mitchell、Michael J. Rodriguez、Matthew Pompeo、Robert D. J. Froese、Michael G. Organ
DOI:10.1002/anie.201503941
日期:2015.8.10
leads to β‐hydride elimination. Whereas catalysts have been reported that provide decent selectivity for the expected (non‐rearranged) cross‐coupled product with aryl or heteroaryl oxidative‐addition partners, none have shown reliable selectivity with five‐membered‐ring heterocycles. In this report, a new, rationally designed catalyst, Pd‐PEPPSI‐IHeptCl, is demonstrated to be effective in selective
The present invention provides a process for producing a 2-acylthiophene compound which has a low content of the 3-isomer generated as a by-product, the process comprising reacting a thiophene compound represented by formula (1):
wherein R
1
is a hydrogen atom, a C
1-6
alkyl group, a phenyl group, or a halogen atom, with at least one member selected from the group consisting of acid anhydrides represented by formula (2):
wherein R
2
is a C
1-6
alkyl group or a phenyl group, and acid halides represented by formula (3):
wherein R
2
is as defined above and X is a halogen atom, in the presence of a solid acid catalyst at a temperature less than 75° C. in the absence of solvent, thus producing a 2-acylthiophene compound represented by formula (4):
wherein R
1
and R
2
are as defined above.
The present invention provides a process for producing a 2-acylthiophene compound which has a low content of the 3-isomer generated as a by-product, the process comprising reacting a thiophene compound represented by formula (1) :
wherein R1 is a hydrogen atom, a C1-6 alkyl group, a phenyl group, or a halogen atom, with at least one member selected from the group consisting of acid anhydrides represented by formula (2):
wherein R2 is a C1-6 alkyl group or a phenyl group, and
acid halides represented by formula (3):
wherein R2 is as defined above and X is a halogen atom,
in the presence of a solid acid catalyst at a temperature less than 75°C in the absence of solvent, thus producing a 2-acylthiophene compound represented by formula (4):
wherein R1 and R2 are as defined above.