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。
Process for preparing 1-phenyl-3-aminopyrazoles
申请人:Montedison S.p.A.
公开号:US04149005A1
公开(公告)日:1979-04-10
1-PHENYL-3-AMINO-2-PYRAZOLINES ARE CATALYTICALLY OXIDIZED TO 1-PHENYL-3-AMINOPYRAZOLES, USING OXYGEN AND/OR AIR AS THE OXIDIZING AGENT AND IN THE PRESENCE OF COPPER SALTS, OPTIONALLY ASSOCIATED WITH METALLIC COPPER AND/OR AN AROMATIC, HETEROCYCLIC ORGANIC BASE SELECTED FROM N-dialkyl anilines, pyridines, piperidine, and ethanolamine, or equivalents thereof, in an inert reaction medium and at a temperature of from about 20.degree. C. to about 40.degree. C.
THIENOPYRIMIDINEDIONE DERIVATIVES AS TRPA1 MODULATORS
申请人:Kumar Sukeerthi
公开号:US20120295924A1
公开(公告)日:2012-11-22
The present invention is related to novel thienopyrimidinedione derivatives as TRPA (Transient Receptor Potential subfamily A) modulators. In particular, compounds described herein are useful for treating or preventing diseases, conditions and/or disorders modulated by TRPA1 (Transient Receptor Potential subfamily A, member 1). Also provided herein are processes for preparing compounds described herein, intermediates used in their synthesis, pharmaceutical compositions thereof, and methods for treating or preventing diseases, conditions and/or disorders modulated by TRPA1.
ISOTHIAZOLO-PYRIMIDINEDIONE DERIVATIVES AS TRPAI MODULATORS
申请人:Kumar Sukeerthi
公开号:US20120010223A1
公开(公告)日:2012-01-12
The present invention is related to novel isothiazolo[3,4-d]pyrimidinedione and isothiazolo[5,4-d]pyrimidinedione derivatives as TRPA (Transient Receptor Potential subfamily A) modulators. In particular, compounds described herein are useful for treating or preventing diseases, conditions and/or disorders modulated by TRPA1 (Transient Receptor Potential subfamily A, member 1). Also provided herein are processes for preparing compounds described herein, intermediates used in their synthesis, pharmaceutical compositions thereof, and methods for treating or preventing diseases, conditions and/or disorders modulated by TRPA1.
Isothiazolo-pyrimidinedione derivatives as TRPA1 modulators
申请人:Kumar Sukeerthi
公开号:US08575178B2
公开(公告)日:2013-11-05
The present invention is related to novel isothiazolo[3,4-d]pyrimidinedione and isothiazolo[5,4-d]pyrimidinedione derivatives as TRPA (Transient Receptor Potential subfamily A) modulators. In particular, compounds described herein are useful for treating or preventing diseases, conditions and/or disorders modulated by TRPA1 (Transient Receptor Potential subfamily A, member 1). Also provided herein are processes for preparing compounds described herein, intermediates used in their synthesis, pharmaceutical compositions thereof, and methods for treating or preventing diseases, conditions and/or disorders modulated by TRPA1.