NOVEL ANALOGUES OF EPICATECHIN AND RELATED POLYPHENOLS
申请人:SPHAERA PHARMA PVT. LTD.
公开号:US20160039781A1
公开(公告)日:2016-02-11
The present invention provides novel analogues of epicatechin and related polyphenols, their variously functionalized derivatives, process for preparation of the same, composition comprising these compounds and their method of use.
MeONH2·HCl-Mediated α-Methylenation/Conjugate Addition of α-Sulfonyl o-Hydroxyacetophenones with Methyl Sulfoxides: Route to 3-Sulfonylchroman-4-ones
作者:Meng-Yang Chang、Kuan-Ting Chen
DOI:10.1055/s-0040-1707245
日期:2021.1
Abstract A novel and efficient route for the synthesis of 3-sulfonylchroman-4-ones from α-sulfonyl o-hydroxyacetophenones with methyl sulfoxides via a MeONH2·HCl-mediated sequential methylenation/ conjugate addition is described. Plausible reaction mechanisms are proposed and discussed. Various reaction conditions for this novel, one-pot, environmentally friendly conversion were investigated.
Osthole is a natural coumarin derivative and has a broad scope of biological activities. Two series of novel fused osthole analogues were designed, and synthesized through a highly efficient microwave‐promoted synthetic protocol via the reaction of 4‐hydroxycoumarins and β‐ketoesters. The reaction conditions including solvent, catalyst, microwave power and irradiation time were also optimized. The
Osthole是天然的香豆素衍生物,具有广泛的生物活性。设计了两个系列的新型融合甾醇类似物,并通过高效的微波促进合成方案,通过4-羟基香豆素和β-酮酸酯的反应进行合成。还优化了反应条件,包括溶剂,催化剂,微波功率和辐照时间。通过两个不同的分子内环化过程获得吡喃并[3,2 - c ]色烯-2,5-二酮和呋喃[3,2- c ]香豆素,并讨论了所提出的机理。
PYRANOCHROMENYL PHENOL DERIVATIVE, AND PHARMACEUTICAL COMPOSITION FOR TREATING METABOLIC SYNDROME OR INFLAMMATORY DISEASE
申请人:ERUM BIOTECHNOLOGIES, INC.
公开号:US20160272650A1
公开(公告)日:2016-09-22
Provided are a pyranochromenyl phenol derivative, a pharmaceutically acceptable salt thereof, or a solvate thereof. Also provided is a pharmaceutical composition for preventing or treating metabolic syndrome or inflammatory disease comprising same.
The present invention is efficacious in preventing or treating metabolic syndrome or inflammatory disease and is chemically stable.
the microwave-assisted synthetic protocol developed in our previous work, we have synthesized a series of novel furo[3,2-c]coumarins as fused Osthole derivatives, via the reaction of 4-hydroxycoumarins and β-ketoesters catalyzed by DMAP. All the target compounds were evaluated in vitro for their antifungal activity against six phytopathogenic fungi, some compounds exhibited potential activity in the
基于我们先前工作中开发的微波辅助合成方案,我们通过DMAP催化的4-羟基香豆素与β-酮酸酯的反应,合成了一系列新型的呋喃并[3,2- c ]香豆素作为稠合的Osthole衍生物。体外评估了所有目标化合物对六种植物病原真菌的抗真菌活性,其中一些化合物在主要试验中表现出潜在的活性。尤其是化合物6c,7b,8b和8c(如图1所示)是活性最高的化合物,这四种化合物对辣椒炭疽菌,灰葡萄孢的EC 50值进一步研究了茄子和根瘤菌。6c被确定为最有前途的候选物,对灰葡萄孢的EC 50值为0.110μM,对辣椒炭疽菌的EC 50值分别为0.040μM,与常规杀真菌剂Azoxystrobin相比具有更好的抗真菌活性。