[EN] PYRAZOLOPYRIMIDINES AND THEIR USES AS PDGFR INHIBITORS [FR] PYRAZOLOPYRIMIDINES ET LEURS UTILISATIONS EN TANT QU'INHIBITEURS DE PDGFR
摘要:
The disclosure is directed to compounds of formula (I) and pharmaceutically acceptable salts thereof. Pharmaceutical compositions comprising compounds of formula (I), as well as methods of their use and preparation, are also described.
Ti-Mediated Chemoselective Conversion of Cyanoesters and Cyanoamides into β-Aminoesters and 1-Aza-spirolactams Bearing a Cyclopropane Ring.
作者:Jan Szymoniak、Philippe Bertus
DOI:10.1055/s-2003-36785
日期:——
α-Cyanoesters or tertiary α-cyanoamides react with Grignard reagents and Ti(i-PrO)4 to afford respectively β-amino esters or amides, bearing a cyclopropane ring. Starting from β- or γ-cyanoesters, spirocyclopropanelactams are formed via an in situ cyclopropanation-lactamization sequence.
Palladium-Catalyzed Ring Expansion of Spirocyclopropanes to Form Caprolactams and Azepanes
作者:Olivier René、Iain A. Stepek、Alberto Gobbi、Benjamin P. Fauber、Simon Gaines
DOI:10.1021/acs.joc.5b01846
日期:2015.10.16
A palladium(0)-catalyzed rearrangement of piperidones and piperidines bearing a spirocyclopropane ring was developed. The ring expansion reaction led to a variety of functionalized caprolactam and azepane products in good to excellent yields. Experimental and computational mechanistic studies revealed an initial oxidative addition of the distal carbon carbon bond of a cyclopropane ring to the palladium(0) catalyst and the relief of ring strain as a driving force for product formation.
TARGETED DEGRADATION OF VAV1
申请人:[en]MONTE ROSA THERAPEUTICS, INC.
公开号:WO2024151547A1
公开(公告)日:2024-07-18
This disclosure features chemical entities (e.g., a compound or a pharmaceutically acceptable salt thereof) that degrades Proto-oncogene VAV 1 protein (VAV1). The chemical entities are useful, e.g., for treating a subject (e.g., a human subject) having an inflammatory or autoimmune disorder.
Studies on the titanium-catalyzed cyclopropanation of nitriles
The Ti-mediated reaction of Grignard reagents with nitriles was investigated with sub-stoichiometric amounts of titanium isopropoxide. Cyanoesters were converted to spirocyclopropanelactams in good yields using as low as 0.05 eq of Ti(OiPr)4. Under similar conditions, cyanocarbonates led to spirocyclopropane oxazolidinones and/or aminocyclopropylcarbinols. A very short synthesis of the naturally occurring aminocyclopropanecarboxylic acid illustrates the usefulness of this methodology.
[EN] PYRAZOLOPYRIMIDINES AND THEIR USES AS PDGFR INHIBITORS<br/>[FR] PYRAZOLOPYRIMIDINES ET LEURS UTILISATIONS EN TANT QU'INHIBITEURS DE PDGFR
申请人:[en]ACTELION PHARMACEUTICALS LTD
公开号:WO2023007009A1
公开(公告)日:2023-02-02
The disclosure is directed to compounds of formula (I) and pharmaceutically acceptable salts thereof. Pharmaceutical compositions comprising compounds of formula (I), as well as methods of their use and preparation, are also described.