Unprecedented CuI/CuII‐assisted tandem catalysis allowing an Ullmann/Chan–Evans–Lam sequence was achieved. This three‐component, one‐pot reaction triggered by a change in the oxidation state of the metal leads to the selective N1,N3‐diarylation of 3‐aminopyrazole. This new method should be a valuable tool for small‐molecule drug discovery that requires suitable regio‐ and/or chemoselective strategies
前所未有的Cu I / Cu II辅助串联催化,实现了Ullmann / Chan–Evans–Lam序列。这种由金属的氧化态变化引发的三组分一锅法反应导致3-氨基吡唑的选择性N 1,N 3-二芳基化。这种新方法应该是发现小分子药物的有价值的工具,它需要适当的区域和/或化学选择策略来使含氮杂环的N-芳基化。
[EN] 1,3-SUBSTITUED PYRAZOLE COMPOUNDS USEFUL FOR REDUCTION OF VERY LONG CHAIN FATTY ACIC LEVELS<br/>[FR] COMPOSÉS PYRAZOLE 1,3-SUBSTITUÉS UTILES POUR LA RÉDUCTION DE NIVEAUX D'ACIDES GRAS À CHAÎNE TRÈS LONGUE
申请人:VERTEX PHARMA
公开号:WO2018107056A1
公开(公告)日:2018-06-14
Disclosed are chemical entities which are compounds of Formula (I) and pharmaceutically acceptable salts thereof, wherein Formula (I) has the structure: R1a, R1b, R2, R3, R4a, R4b and Y are as defined herein. These chemical entities are useful for reduction of very long chain fatty acid levels. These chemical entities and pharmaceutically acceptable compositions comprising such chemical entities can be useful for treating various diseases, disorders and conditions, such as adrenoleukodystrophy (ALD).
PROCESSES FOR THE PREPARATION OF PESTICIDAL COMPOUNDS
申请人:Dow AgroSciences LLC
公开号:US20150112078A1
公开(公告)日:2015-04-23
The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.
本申请提供了用于制造杀虫化合物的过程,以及既可用作杀虫剂又可用于制造杀虫化合物的化合物。
Process for the preparation of 3-(3-chloro-1H-pyrazol-1-yl)pyridine
申请人:Dow AgroSciences LLC
公开号:US09199964B1
公开(公告)日:2015-12-01
3-(3-Chloro-1H-pyrazol-1-yl)pyridine is prepared by cyclizing 3-hydrazinopyridine.dihydrochloride with acrylonitrile to provide 1-(pyridin-3-yl)-4,5-dihydro-1H-pyrazol-3-amine, by oxidizing to provide 3-(3-amino-1H-pyrazol-1-yl)pyridine, and by converting the amino group to a chloro group by a Sandmeyer reaction.
The present application relates to novel bicyclic compounds, to compositions comprising these compounds, to their use for controlling animal pests and to processes and intermediates for their preparation.