Evolution of a Synthetic Strategy: Total Synthesis of (±)-Welwitindolinone A Isonitrile
作者:Sarah E. Reisman、Joseph M. Ready、Matthew M. Weiss、Atsushi Hasuoka、Makoto Hirata、Kazuhiko Tamaki、Timo V. Ovaska、Catherine J. Smith、John L. Wood
DOI:10.1021/ja076663z
日期:2008.2.1
An efficient and highly stereoselective total synthesis of the natural product (+/-)-welwitindolinone A isonitrile (1) is described. The bicyclo[4.2.0]octane core of 1 was established by a regio- and diastereoselective [2+2] ketene cycloaddition. The C12 quaternary center and vicinal stereogenic chlorine were installed in a single operation with excellent stereocontrol via a chloronium ion mediated
Extending Pummerer Reaction Chemistry. Application to the Oxidative Cyclization of Indole Derivatives
作者:Ken S. Feldman、Daniela Boneva Vidulova
DOI:10.1021/ol0493406
日期:2004.5.1
Treatment of 2-(phenylsulfinyl)indoles bearing a pendant nucleophile at C(3) with Tf(2)O/lutidine triggers a Pummerer-like cyclization to furnish 3,3-spirocyclic-2-(phenylthio)indolenine products, which can, in turn, be hydrolyzed to 3,3-spirocyclic oxindoles. [reaction: see text]
Described herein are compounds and pharmaceutical compositions containing such compounds that antagonize the PGD2 activated chemoattractant receptor-homologous molecule expressed on TH2 cells (CRTH2). Also described herein are methods of using such CRTH2 antagonists, alone and in combination with other compounds, for treating respiratory, cardiovascular, and other PGD2-dependent or PGD2 mediated conditions or diseases.
[EN] KRAS G12C INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE KRAS G12C ET LEURS UTILISATIONS
申请人:CALIFORNIA INST OF TECHN
公开号:WO2022115439A1
公开(公告)日:2022-06-02
The invention relates to compounds of Formula I, and pharmaceutically acceptable salts thereof, and methods of making and using the same. The compounds of the invention are effective in inhibiting KRAS protein with a G12C mutation and are suitable for use in methods of treating cancers mediated, in whole or in part, by KRAS G12C mutation.