Acylideneoxoindoles: A new class of reversible inhibitors of human transglutaminase 2
摘要:
Inhibitors of human transglutaminase 2 (TG2) are anticipated to be useful in the therapy of a variety of diseases including celiac sprue as well as certain CNS disorders and cancers. A class of 3-acylidene-2-oxoindoles was identified as potent reversible inhibitors of human TG2. Structure-activity relationship analysis of a lead compound led to the generation of several potent, competitive inhibitors. Analogs with significant non-competitive character were also identified, suggesting that the compounds bind at one or more allosteric regulatory sites on this multidomain enzyme. The most active compounds had K(i) values below 1.0 mu M in two different kinetic assays for human TG2, and may therefore be suitable for investigations into the role of TG2 in physiology and disease in animals. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis and evaluation of oxindoles as promising inhibitors of the immunosuppressive enzyme indoleamine 2,3-dioxygenase 1
作者:Saurav Paul、Ashalata Roy、Suman Jyoti Deka、Subhankar Panda、Gopal Narayan Srivastava、Vishal Trivedi、Debasis Manna
DOI:10.1039/c7md00226b
日期:——
oxindoles from L-Trp, tryptamine and isatin. Compounds with C3-substituted oxindole moieties showed moderate inhibitory activity against the purified human IDO1 enzyme. Their optimization led to the identification of potent compounds, 6, 22, 23 and 25 (IC50 = 0.19 to 0.62 μM), which are competitive inhibitors of IDO1 with respect to L-Trp. These potent compounds also showed IDO1 inhibition potencies in
Synthesis of potential anticonvulsants: Condensation of isatins with acetone and related ketones
作者:F.D. Popp、R. Parson、B.E. Donigan
DOI:10.1002/jps.2600691035
日期:1980.10
Substituted isatins were condensed with acetone and otherketones to give analogs of 3-hydroxy-3-acetonyloxindole. Some of these alcohols were dehydrated. Several compounds with anticonvulsant activity were obtained.
Synthesis of functionalized 2-oxindoles by Friedel–Crafts reactions
作者:Makafui Gasonoo、Douglas A. Klumpp
DOI:10.1016/j.tetlet.2015.06.028
日期:2015.8
The product aryl-substituted 2-oxindoles are formed in generally good yields. With substituted arenes such as toluene, bromobenzene, or anisole, the Friedel–Crafts reactions occur with excellent regioselectivity. A mechanism is proposed involving carbocationic electrophiles leading to the aromatic substitutionchemistry.
Ordered short channel mesoporous silica modified with 1,3,5-triazine–piperazine as a versatile recyclable basic catalyst for cross-aldol, Knoevenagel and conjugate addition reactions with isatins
作者:Naveen Gupta、Tamal Roy、Debashis Ghosh、Sayed H. R. Abdi、Rukhsana I. Kureshy、Noor-ul H. Khan、Hari C. Bajaj
DOI:10.1039/c5ra00406c
日期:——
A recyclable triazine–piperazine immobilized silica supported material was explored as a heterogeneous catalyst for indole skeletal synthesized from isatins at RT.
Ketone–ketone cross-aldolreaction of isatins and unactivated ketones was catalyzed by glucose-containing imidazolium salt β-1-imidazole-2,3,4,6-tetra- o -hydroxy- d -glucopyranosyl bromide in neutral condition to generate 3-alkyl-3-hydroxyindolin-2-ones in excellent yield.
含葡萄糖的咪唑鎓盐β-1-咪唑-2,3,4,6-四氢呋喃-丁酮催化靛红与未活化酮的酮-酮交叉羟醛反应。 Ø -羟基- d -葡糖吡喃糖基溴在中性条件下生成3-烷基-3-羟基吲哚-2-酮的产率很高。