Thioamide and Thioester Cyclopentane Synthesis via Trimethyltin Radical Catalyzed Alkenylation of Substituted (Thiocarbonyl)cyclopropanes
摘要:
Thioamide cyclopropanes bearing phenyl substituents and thioamide- or thioester cyclopropanes bearing gem-dichloro and methyl substituents were subjected to trimethyltin radical catalyzed alkenylation to furnish the corresponding substituted (thiocarbonyl)cyclopentanes. The stereochemical outcome of these transformations can be rationalized by considering the effects of substituents, upon cyclization of the intermediate functionalized 5-hexenyl radicals.
[EN] PFKFB3 INHIBITORS AND THEIR USES<br/>[FR] INHIBITEURS DE PFKFB3 ET LEURS UTILISATIONS
申请人:GERO DISCOVERY LLC
公开号:WO2020080979A1
公开(公告)日:2020-04-23
This disclosure relates to new phthalimide and isoindolinone derivatives and other PFKFB3 inhibitors for use in the treatment of diseases. The invention further relates to pharmaceutical compositions containing such PFKFB3 inhibitors, methods of preparation thereof, methods for their use as therapeutic agents, and methods of preparation of a medicament for use in therapy, as well as kits and other inventiions comprising such PFKFB3 inhibitors. These PFKFB3 inhibitors are useful for the treatment and prophylaxis of cancer, neurodegenerative diseases, autoimmune diseases, inflammatory disorders, multiple sclerosis, metabolic diseases, inhibition of angiogenesis and other diseases and conditions, where the modulation of PFKFB3 and/or PFKFB4 has beneficial effect as well as neuroprotection.
Novel and efficient method for esterification, amidation between carboxylic acids and equimolar amounts of alcohols, and amines utilizing Me2NSO2Cl and N,N-dimethylamines; its application to the synthesis of coumaperine, a natural chemopreventive dieneamide
(0–45°C; within 3 h) using dimethylsulfamoyl chloride (Me2NSO2Cl; 1) combined with N,N-dimethylamines (Me2NR: 2a; R=Me, 2b; R=Bu). The choice of the sulfamoyl chloride and the amine is crucial for the reaction; that is, sterically uncrowded amines accelerated the present esterification and amidation. This agent had some advantages over methanesulfonylchloride (3)/amines as for the atom-economy, avoidance
使用二甲基氨磺酰氯(Me 2 NSO 2 Cl; 1),在非常温和的条件下(0-45°C; 3 h内),以良好的收率制备了羧酸与等摩尔量的醇或胺之间的各种羧酸酯或酰胺用N,N-二甲胺(Me 2 NR:2a; R = Me,2b; R = Bu)。氨磺酰氯和胺的选择对反应至关重要。即,空间上不拥挤的胺促进了本发明的酯化和酰胺化。该试剂比甲磺酰氯(3)/胺的原子经济性,避免了副反应,并且对羧基和羟基的化学选择性很高;通过在羧酸和醇的混合物中添加1进行实验。使用本发明的酰胺化作为关键步骤,将该方法应用于合成香豆精(一种化学预防的天然产物)。
PTERIDINE KETONE DERIVATIVE AND APPLICATIONS THEREOF AS EGFR, BLK, AND FLT3 INHIBITOR
申请人:EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
公开号:US20150126508A1
公开(公告)日:2015-05-07
Provided are a pteridine ketone derivative used as an EGFR, BLK, and FLT3 inhibitor and applications thereof. Specifically, provided are a compound of the following formula I, a pharmaceutical composition containing the compound of the formula I, and use of compound in preparing medicine for treating diseases mediated by EGFR, BLK, or FLT3 or inhibiting EGFR, BLK, and FLT3.
SmI2-promoted intra- and intermolecular C–C bond formation with chiral N-acyl oxazolidinones
作者:Rolf H. Taaning、Laura Thim、Jacob Karaffa、Araceli G. Campaña、Anna-Mette Hansen、Troels Skrydstrup
DOI:10.1016/j.tet.2008.09.044
日期:2008.12
The suitability of chiral oxazolidinones in the SmI2-mediated C–C bond generation between the imide functionality of an N-acyloxazolidinone unit and an olefinic radical acceptor, in both inter- and intramolecular reactions, was investigated. It was shown that the products from an Evans asymmetric alkylation can undergo direct carbon–carbon bond formation with an acrylamide providing chiral acyclic