N-Hydroxy-3-phenyl-2-propenamides as Novel Inhibitors of Human Histone Deacetylase with in Vivo Antitumor Activity: Discovery of (2E)-N-Hydroxy-3-[4-[[(2-hydroxyethyl)[2-(1H-indol-3-yl)ethyl]amino]methyl]phenyl]-2-propenamide (NVP-LAQ824)
摘要:
A series of N-hydroxy-3-phenyl-2-propenamides were prepared as novel inhibitors of human histone deacetylase (HDAC). These compounds were potent enzyme inhibitors, having IC(50)s < 400 nM in a partially purified enzyme assay. However, potency in cell growth inhibition assays ranged over 2 orders of magnitude in two human carcinoma cell lines. Selected compounds having cellular IC50 < 750 nM were tested for maximum tolerated dose (MTD) and for efficacy in the HCT116 human colon tumor xenograft assay. Four compounds having an MTD 100 mg/kg were selected for dose-response studies in the HCT116 xenograft model. One compound, 9 (NVP-LAQ824), had significant dose-related activity in the HCT116 colon and A549 lung tumor models, high MTD, and low gross toxicity. On the basis, in part, of these properties, 9 has entered human clinical trials in 2002.
Unified Synthesis of Polycyclic Alkaloids by Complementary Carbonyl Activation**
作者:Guoli He、Benjamin List、Mathias Christmann
DOI:10.1002/anie.202102518
日期:2021.6.7
A complementary dual carbonyl activation strategy for the synthesis of polycyclic alkaloids has been developed. Successful applications include the synthesis of tetracyclic alkaloids harmalanine and harmalacinine, pentacyclic indoloquinolizidine alkaloid nortetoyobyrine, and octacyclic β-carboline alkaloid peganumine A. The latter synthesis features a protecting-group-free assembly and an asymmetric
已经开发出用于合成多环生物碱的互补双羰基活化策略。成功的应用包括四环生物碱骆驼蓬菌素和骆驼蓬菌素、五环吲哚喹啉西啶生物碱去甲代拜林和八环β-咔啉生物碱peganumine A的合成。后者的合成具有无保护基组装和不对称二磺酰亚胺催化环化的特点。此外,还实现了 hirsutine、deplancheine、10-desbromoarborescidine A 和 oxindole 生物碱钩藤碱和异钩藤碱的正式合成。最终完成了小檗碱生物碱ilicifoline B的简捷合成。
ORGANIC COMPOUNDS
申请人:ANG Shi Hua
公开号:US20090275560A1
公开(公告)日:2009-11-05
The invention relates to organic compounds which have interesting pharmaceutical properties. In particular, the compounds are useful in the treatment and/or prevention of infections such as those caused by
Plasmodium falciparum, Plasmodium vivax, Plasmodium malariae, Plasmodium ovale, Trypanosoma cruzi
and parasites of the
Leishmania
genus such as, for example,
Leishmania donovani
. The invention also relates to pharmaceutical compositions containing the compounds, as well as processes for their preparation.
Spirotetrahydro β-Carbolines (Spiroindolones): A New Class of Potent and Orally Efficacious Compounds for the Treatment of Malaria
作者:Bryan K. S. Yeung、Bin Zou、Matthias Rottmann、Suresh B. Lakshminarayana、Shi Hua Ang、Seh Yong Leong、Jocelyn Tan、Josephine Wong、Sonja Keller-Maerki、Christoph Fischli、Anne Goh、Esther K. Schmitt、Philipp Krastel、Eric Francotte、Kelli Kuhen、David Plouffe、Kerstin Henson、Trixie Wagner、Elizabeth A. Winzeler、Frank Petersen、Reto Brun、Veronique Dartois、Thierry T. Diagana、Thomas H. Keller
DOI:10.1021/jm100410f
日期:2010.7.22
Racemic spiroazepineindole (1) was identified from a phenotypic screen on wild type Plasmodium falciparum with an in vitro IC(50) of 90 nM. Structure-activity relationships for the optimization of 1 to compound 20a (IC(50) = 0.2 nM) including the identification of the active 1R,3S enantiomer and elimination of metabolic liabilities is presented. Improvement of the pharmacokinetic profile of the series translated
Die vorliegende Erfindung betrifft substituierte Cyclohexylessigsäure-Derivate, Verfahren zu deren Herstellung, Arzneimittel enthaltend diese Verbindungen und die Verwendung von substituierten Cyclohexylessigsäure-Derivaten zur Herstellung von Arzneimitteln.
Indol-2-one Intermediates: Mechanistic Evidence and Synthetic Utility. Total Syntheses of (±)-Flustramines A and C
作者:James R. Fuchs、Raymond L. Funk
DOI:10.1021/ol047532v
日期:2005.2.1
A variety of 3,3-disubstituted 2-indolinones have been prepared by treatment of 3-bromo-3-alkyl-2-indolinones with dienophiles/nucleophiles in the presence of cesium carbonate. Application of this general strategy has facilitated the total syntheses of the reverse prenylated marine natural products (+/-)-flustramine A and (+/-)-flustramine C. [Structure: see text]