Synthesis of Polyfunctionalized Pyrroles via a Tandem Reaction of Michael Addition and Intramolecular Cyanide-Mediated Nitrile-to-Nitrile Condensation
作者:Sankar K. Guchhait、Shailendra Sisodiya、Meenu Saini、Yesha V. Shah、Gulshan Kumar、Divine P Daniel、Neha Hura、Vikas Chaudhary
DOI:10.1021/acs.joc.8b00465
日期:2018.5.18
A new approach for the synthesis of tetrasubstituted/functionalized NH-pyrroles from gem-diactivated acrylonitriles and TMSCN has been developed. The strategy utilizes the generation of vic-dinitrile viaMichaeladdition and cyanide-mediated nitrile-to-nitrile cyclocondensation, which proceed in tandem guided by manifold roles of “CN”. An extended application to the production of fused pyrrole has
Synthesis of 5-p-hydroxybenzyl-5,6-dihydro-2-naphthol, (±)-sequirin D
作者:M. Parameswara Reddy、G. S. Krishna Rao
DOI:10.1039/p19810002662
日期:——
(2) to acrylonitrile gives a ketonitrile (3), which on Wolff–Kishner reduction is reduced and hyrolysed in situ to 4,5-bis-p-methoxyphenylpentanoic acid (4). Cyclodehydration of (4) with polyphosphoricacid, followed by borohydride reduction and dehydration furnishes di-O-methylsequirin D (1b) which affords on demethylation sequirin D (1a) in an overall yield from (2) of 60%. The key synthon (4) has also
[EN] ESTROGEN RECEPTOR LIGANDS, COMPOSITIONS AND METHODS RELATED THERETO<br/>[FR] LIGANDS DU RÉCEPTEUR DES OESTROGÈNES, COMPOSITIONS ET MÉTHODES ASSOCIÉES
申请人:UNIV CALIFORNIA
公开号:WO2018049094A1
公开(公告)日:2018-03-15
Provided are compounds and methods for treating neurodegenerative diseases and conditions, such as multiple sclerosis, using an estrogen receptor-β ligand (ΕΡβ ligand).
An ultralow-acceptor-content supramolecular light-harvesting system for white-light emission
作者:Kai Diao、Daniel J. Whitaker、Zehuan Huang、Hongwei Qian、Dongxing Ren、Liangliang Zhang、Zheng-Yi Li、Xiao-Qiang Sun、Tangxin Xiao、Leyong Wang
DOI:10.1039/d1cc06647a
日期:——
A white-light emitting system based on binary fluorophores was achieved at an ultralow acceptor/donor ratio, on account of perfect energy matching and precise color balancing.
基于二元荧光物质的白光发射系统在超低受体/给体比例下实现,这归功于完美的能量匹配和精确的色彩平衡。
PHENYL SULFAMATE DERIVATIVES
申请人:Teikoku Hormone Mfg. Co., Ltd.
公开号:EP1193250A1
公开(公告)日:2002-04-03
Phenyl sulfamate derivatives represented by the following formula or salts thereof have a powerful inhibitory effect on steroid sulfatase and are hence useful for the prophylaxis or treatment of diseases associated with steroids such as estrogens, such as breast cancer, corpus uteri cancer, endometrial hyperplasia, infertility, endometriosis, adenomyosis uteri, autoimmune disease, dementia or Alzheimer's disease.
wherein R1 and R2 each independently represent a hydrogen atom or a lower alkyl group; R3 represents a hydrogen atom, a halogen atom, a lower alkyl group, -OSO2NR1R2, a lower alkanoylamino group, a nitro group or a cyano group; and A represents a substituted or unsubstituted phenyl group, a group of the formula -X-NR4R5, or the like.