Mass spectrometric characterization of organosulfates related to secondary organic aerosol from isoprene
作者:Mohammad Safi Shalamzari、Oxana Ryabtsova、Ariane Kahnt、Reinhilde Vermeylen、Marie-France Hérent、Joëlle Quetin-Leclercq、Pieter Van der Veken、Willy Maenhaut、Magda Claeys
DOI:10.1002/rcm.6511
日期:2013.4.15
ionization mass spectrometry (LC/(-)ESI-MS), including ion trap MS(n) and accurate mass measurements, derivatization of the carbonyl group into 2,4-dinitrophenylhydrazones, detailed interpretation of the MS data, and in a selected case comparison of their LC and MS behavior with that of synthesized reference compounds. RESULTS Polar organosulfates with molecular weights (MWs) of 156, 170, 184 and 200 were attributed
The Effects of Ring Size and Substituents on the Rates of Acid-Catalysed Hydrolysis of Five- and Six-Membered Ring Cyclic Ketone Acetals
作者:Jonathan P. Knowles、Andrew Whiting
DOI:10.1002/ejoc.200700244
日期:2007.7
A series of sterically similar five- and six-membered ring cyclic diol-derived ketone acetals have been prepared and their rates of acid-catalysed hydrolysis examined. The rates of hydrolysis are substantially affected by acetal ring conformational stereoelectronic effects and resonance effects depending upon the substituents on the parent ketone; an A1 mechanism of hydrolysis explains the observed
The first totalsynthesis for resveratrone and its regioisomer with comparable photophysical properties is reported. The key step involves a novel epoxide olefination and the route is applied to the synthesis of a click-ready fluorescence label. The pivotal olefination step relies on insertion of the lithiated epoxide into the boronic ester, after which a thermic syn-elimination exclusively furnishes
Palladium-catalyzed three carbon chain extension reactions with acrolein acetals. A convenient synthesis of conjugated dienals
作者:Babu A. Patel、Jin-Il I. Kim、Diana D. Bender、Lien-Chung Kao、Richard F. Heck
DOI:10.1021/jo00319a004
日期:1981.3
[EN] INHIBITORS OF CDK4/6 KINASE<br/>[FR] INHIBITEURS DE KINASE CDK4/6
申请人:[en]KINNATE BIOPHARMA INC.
公开号:WO2023147372A1
公开(公告)日:2023-08-03
Provided herein are inhibitors of CDK4/6 kinase, pharmaceutical compositions comprising said inhibitory compounds, and methods for using said CDK4/6 kinase inhibitory compounds for the treatment of disease.