鉴于其与适当互补的 2,6-二乙酰氨基-4-吡啶配体形成三重 H 键配合物的能力,研究了尿嘧啶 - 偶氮苯衍生物的 E/Z 异构化过程,其中核碱基与苯基二氮烯尾部共轭. 光化学和热异构化动力学的 UV-vis 和 1H NMR 研究表明,在形成 H 键配合物后,热 Z → E 互变加速了 4 倍。DFT 计算表明,三重 H 键的形成触发了 N=N 双键的显着伸长,这是由其 πg* 反键特性的增加引起的。这导致 N=N 扭转势垒降低,从而加速热 Z → E 异构化。结合光控E→Z异构化,
The present invention relates to certain novel compounds of Formula (I):
and methods for preparing these compounds, compositions, intermediates and derivatives thereof and for the treatment of prokineticin 1 or prokinetin 1 receptor mediated disorders.
PROKINETICIN 1 RECEPTOR ANTAGONISTS FOR THE TREATMENT OF PAIN
申请人:Flores Christopher M.
公开号:US20110319418A1
公开(公告)日:2011-12-29
Disclosed are compounds, compositions and methods for treating pain, including inflammatory, visceral, and acute pain. Such compounds are represented by Formula (I) as follows:
wherein A
1
, L
1
, D, L
2
, and Q are defined herein.
Palladium-catalyzed synthesis of [E]-6-(2-acylvinyl)uracils and [E]-6-(2-acylvinyl)-1-[(2-hydroxyethoxy)methyl]uracils—their antiviral and cytotoxic activities
作者:Nitya G. Kundu、Palas Das、Jan Balzarini、Erik De Clercq
DOI:10.1016/s0968-0896(97)00114-4
日期:1997.11
[E]-6-(2-Acylvinyl)uracils and their corresponding 1-(2-hydroxyethoxy)methyl derivatives were synthesized through palladium-catalyzed reactions which involved an interesting rearrangement. Some of the acylvinyl uracils (3, 4, and 5) and the acyclonucleosides (8 and 10) showed pronounced activity against human T-lymphocyte Molt 4/C8 and CEM cells. However, they were less toxic to murine L1210 and FM3A
Preparation and reactions of 2-zincated 2-cyclohexen-1-one and related heterocycles
作者:A.S Bhanu Prasad、Paul Knochel
DOI:10.1016/s0040-4020(97)10116-8
日期:1997.12
of a copper(I) catalyst or palladium(0) catalyst with an allylic bromide or alkenyl and aryliodides in satisfactory to good yields. Several of these products can further be cyclized leading diastereoselectively to a polyfunctional decaline 12 or a pyrrole derivative 13. A 6-zincated uracil reagent has also been prepared and reacted with aryliodides in the presence of a palladiumcatalyst leading to
Practical and sustainable approach for clean preparation of 5-organylselanyl uracils
作者:Jin-Yang Chen、Chun-Tao Zhong、Qing-Wen Gui、Yuan-Ming Zhou、Yang-Yang Fang、Kai-Jian Liu、Ying-Wu Lin、Zhong Cao、Wei-Min He
DOI:10.1016/j.cclet.2020.09.034
日期:2021.1
Abstract An eco-friendly, sustainable and practical method for the efficient preparation of 5-organylselanyl uracils through the electrochemical selenylation of uracils and diorganyl diselenides at room temperature under oxidant- and external electrolyte-free conditions was developed.