开发了一种色烯环体系的新路线,该路线涉及铬的α,β-不饱和费歇尔卡宾络合物与在炔丙碳上带有烯基的炔丙醚的反应。这种转化涉及一系列反应,从苯并环化反应开始,然后形成邻醌甲基化物,最后在电环化时产生色烯。通过使用芳基卡宾络合物,该反应被扩展以提供通路。这是色烯的首次合成,其中色烯系统的两个环均在一步中生成,并在 lapachenole 和维生素 E 的合成中得到突出体现。
开发了一种色烯环体系的新路线,该路线涉及铬的α,β-不饱和费歇尔卡宾络合物与在炔丙碳上带有烯基的炔丙醚的反应。这种转化涉及一系列反应,从苯并环化反应开始,然后形成邻醌甲基化物,最后在电环化时产生色烯。通过使用芳基卡宾络合物,该反应被扩展以提供通路。这是色烯的首次合成,其中色烯系统的两个环均在一步中生成,并在 lapachenole 和维生素 E 的合成中得到突出体现。
Site‐Selective Alkoxylation of Benzylic C−H Bonds by Photoredox Catalysis
作者:Byung Joo Lee、Kimberly S. DeGlopper、Tehshik P. Yoon
DOI:10.1002/anie.201910602
日期:2020.1.2
strategies for C-N and C-C bond formation. In particular, almost all methods for the incorporation of alcohols by C-H oxidation require the use of the alcohol component as a solvent or co-solvent. This condition limits the practical scope of these reactions to simple, inexpensive alcohols. Reported here is a photocatalytic protocol for the functionalization of benzylic C-H bonds with a wide range of oxygen
Photoinduced Electron-Transfer Oxidation of Olefins with Molecular Oxygen Sensitized by Tetrasubstituted Dimethoxybenzenes: A Non-Singlet-Oxygen Mechanism
cation and a superoxide ion (O), the former of which oxidizes the substrate, while the latter reacts with the resulting olefin radicalcation (1+.) to give the major oxidation products. Photodurability of such electron-donating sensitizers is dramatically improved by substituting four aromatic H-atoms in 1,4-dimethoxybenzene with Me or fused alkyl groups, which provides us with an environmentally friendly
[EN] TELODENDRIMERS WITH RIBOFLAVIN MOIETIES AND NANOCARRIERS AND METHODS OF MAKING AND USING SAME<br/>[FR] TÉLODENDRIMÈRES À FRACTIONS DE RIBOFLAVINE ET NANOVECTEURS ET LEURS PROCÉDÉS DE PRODUCTION ET D'UTILISATION
申请人:UNIV NEW YORK STATE RES FOUND
公开号:WO2018136778A1
公开(公告)日:2018-07-26
Provided herein are compositions and nanocarriers comprising linear-dendritic telodendrimers (TD) containing riboflavin. The nanocarriers and compositions have desirable loading properties and stabilized structure and can be used for efficient in vivo delivery.
Pharmaceutical Combinations Including Anti-Inflammatory and Antioxidant Conjugates Useful for Treating Metabolic Disorders
申请人:Laria Julio Cesar Castro Palomino
公开号:US20150025006A1
公开(公告)日:2015-01-22
One aspect of the present invention is a pharmaceutical combination comprising (a) an anti-inflammatory agent/anti-oxidant agent conjugate; and (b) an insulin secretogogue, an insulin sensitizer, an alpha-glucosidase inhibitor, a peptide analog, or a combination thereof. Another aspect of the invention relates to methods of treating metabolic disorders with such conjugates.
Anti-Inflammatory And Antioxidant Conjugates Useful For Treating Metabolic Disorders
申请人:Genmedica Therapeutics SL
公开号:US20130281520A1
公开(公告)日:2013-10-24
The present invention is directed to methods for treating metabolic disorders with compounds that are conjugates. The conjugates of the present invention are comprised of salicylic acid, triflusal, diflusinal, salsalate, IMD-0354, ibuprofen, diclofenac, licofelone, or HTB, and one or more antioxidants.