The Squaramide-Catalyzed 1,3-Dipolar Cycloaddition of Nitroalkenes with<i>N</i>-2,2,2-Trifluoroethylisatin Ketimines: An Approach for the Synthesis of 5′-Trifluoromethyl-spiro[pyrrolidin-3,2′-oxindoles]
A Cinchona alkaloid-derived squaramide-catalyzed asymmetric cycloaddition of trfluoromethyl-containing azomethine ylides with β-nitroalkenes was realized under mild conditions. A series of biologically important 5′-trifluoromethyl- spiro[pyrrolidin-3,2′-oxindoles] was synthesized efficiently by this process in excellent yields, enantioseletivities and diastereoselectivities.
Asymmetric Double Oxidative [3 + 2] Cycloaddition for the Synthesis of CF<sub>3</sub>-Containing Spiro[pyrrolidin-3,2′-oxindole]
作者:Tao Wang、Wen-Bin Wang、Yan-Ming Fu、Cheng-Feng Zhu、Lan-Jun Cheng、Yang-En You、Xiang Wu、You-Gui Li
DOI:10.1021/acs.orglett.3c01083
日期:2023.5.5
An asymmetric double oxidative [3 + 2] cycloaddition is reported. Oxidation of 3-((2,2,2-trifluoroethyl)amino)indolin-2-ones and β-aryl-substituted aldehydes simultaneously and subsequent asymmetriccycloaddition in the presence of the chiral amino catalyst generated highlyfunctionalized chiral CF3-containing spiro[pyrrolidin-3,2′-oxindole] with four contiguous stereocenters stereoselectively, which
Pyridinone derivatives and their use as selective ALK-2 inhibitors
申请人:NOVARTIS AG
公开号:US11160797B2
公开(公告)日:2021-11-02
The invention relates to a compound of Formula I or a pharmaceutically acceptable salt thereof, a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.
本发明涉及一种式 I 的化合物或其药学上可接受的盐、一种制造本发明化合物的方法及其治疗用途。本发明进一步提供了一种药理活性剂的组合物和一种药物组合物。
PYRIDINONE DERIVATIVES AND THEIR USE AS SELECTIVE ALK-2 INHIBITORS