Synthesis of spirooxindoles via asymmetric 1,3-dipolar cycloaddition
摘要:
An efficient method was developed for the asymmetric synthesis of 2'-alkyl-4'aryl-1H-spiro[indole-3,3'-pyrrolidin]-2-ones, which are potential inhibitors of the p53-MDM2 interaction. Our X-ray crystallographic analysis revealed that this 1,3-dipolar cycloaddition proceeds with high stereoselectivity but differently from previously published results. (c) 2005 Elsevier Ltd. All rights reserved.
A series of 6-chloro-3-oxindole derivatives 1–25 were synthesized in high yields by the reaction of 6-chlorooxindole with different aromatic aldehydes in the presence of piperidine. All the synthesized compounds were isolated with E configuration. The structures were confirmed using spectroscopic techniques, including 1H NMR and EIMS. These compounds showed varying degree of yeast α-glucosidase inhibition
在哌啶存在下,通过6-氯代吲哚与不同的芳族醛的反应,可以高收率合成一系列6-氯-3-氧吲哚衍生物1 – 25。用E构型分离所有合成的化合物。使用包括1 H NMR和EIMS在内的光谱技术确认了结构。这些化合物显示出不同程度的酵母α-葡萄糖苷酶抑制作用,并且发现有七种是该酶的有效抑制剂。化合物2,3,4,5,6,23,和25显示出IC 50值2.71±0.007,11.41±0.005,37.93±0.002,15.19±0.004,24.71±0.007,17.33±0.001,和14.2±0.002μM,分别作为相对于标准阿卡波糖(IC 50,38.25±0.12μM)。对接研究有助于发现酶与活性化合物之间的相互作用。这项研究的结果是,已发现羟吲哚是一类新的α-葡萄糖苷酶抑制剂,但尚未见报道。
<i>N</i>′-Alkylaminosulfonyl Analogues of 6-Fluorobenzylideneindolinones with Desirable Physicochemical Profiles and Potent Growth Inhibitory Activities on Hepatocellular Carcinoma
作者:Xiao Chen、Tianming Yang、Amudha Deivasigamani、Muthu K. Shanmugam、Kam-Man Hui、Gautam Sethi、Mei-Lin Go
DOI:10.1002/cmdc.201500235
日期:2015.9
aim of improving its potency and physicochemicalprofile. The 6‐fluorobenzylideneindolinone 3‐12 bearing a 3′‐N‐propylaminosulfonyl substituent was found to be a promising substitute. Compound 3‐12 [6‐fluoro‐3‐(3′‐N‐propylaminosulfonylbenzylidene)‐1,3‐dihydroindol‐2‐one] was found to be tenfold more soluble than 4 and to have sub‐micromolar growthinhibitoryactivities on HCC cells. It is apoptogenic
BENZYLIDENE-INDOLINONE COMPOUNDS AND THEIR MEDICAL USE
申请人:GO Mei Lin
公开号:US20130035364A1
公开(公告)日:2013-02-07
Compounds of general formula I:
wherein
R
1a
, R
1b
, R
2
, R
3a
, R
3b
and X are as defined herein are tyrosine kinase inhibitors and are useful for the treatment of various diseases and conditions, for example cancer.
The present invention relates to spiroindolinone derivatives of the formula
and enantiomers and pharmaceutically acceptable salts and esters thereof which have utility as antiproliferative agents, especially, as anticancer agents.
CeCl<sub>3</sub>·7H<sub>2</sub>O catalyzed C(sp<sup>2</sup>)−CN bond construction on water: Synthesis of (<i>Z</i>)-2-(2-Oxoindolin-3-ylidene)-2-arylacetonitriles
作者:Yan Du、Zheng Li
DOI:10.1080/00397911.2018.1540050
日期:2019.1.2
Abstract An environmentallyfriendly method for the construction of C(sp2)-CN bond on water has been described, and (Z)-2-(2-oxoindolin-3-ylidene)-2-arylacetonitriles were synthesized by using CeCl3· 7H2O as a catalyst. The reaction offers access to alkenyl nitriles in good-to-excellent yield. The investigations will be beneficial to reduce the use of toxic organic solvents and explore the efficient