Radical reactions leading to substituted coumarins
摘要:
The reaction of 4-hydroxycoumarins with a series of quinonic chlorides under photostimulation was shown to provide an efficient approach to 3-alkylated coumarin derivatives, Alkylation reactions of this type proceeded via an electron transfer mechanism (S(RN)1). (C) 1999 Published by Elsevier Science Ltd. All rights reserved.
New Drug Delivery System for Crossing the Blood Brain Barrier
申请人:Lipshutz H. Bruce
公开号:US20070203080A1
公开(公告)日:2007-08-30
New ubiquinol analogs are disclosed, as well as methods of using these compounds to deliver drug moieties to the body.
新的泛醌类似物被披露,以及利用这些化合物将药物基团输送到人体的方法。
An expeditious route to CoQn, vitamins K1 and K2, and related allylated para-quinones utilizing Ni(0) catalysis
作者:Bruce H. Lipshutz、Sung-kyu Kim、Paul Mollard、Kirk L. Stevens
DOI:10.1016/s0040-4020(97)10222-8
日期:1998.2
Coupling reactions between vinylalanes and chloromethylated para-quinones, mediated by catalytic amounts of Ni(0), lead directly to allylated products, including coenzyme Q, and vitaminsK1 and K2.
New ubiquinone and ubiquinol analogs are disclosed, as well as methods of making and using these compounds.
本发明揭示了新的泛醌和泛醌醇类似物,以及制备和使用这些化合物的方法。
A Convergent Approach to Coenzyme Q
作者:Bruce H. Lipshutz、Gerd Bulow、Fernando Fernandez-Lazaro、Sung-Kyu Kim、Richard Lowe、Paul Mollard、Kirk L. Stevens
DOI:10.1021/ja992164p
日期:1999.12.1
Syntheses of coenzyme Q(3-8) are described, as well as related systems such as plastoquinone-5. Preparation of thr higher homologues of the ubiquinones relies on two new conjunctive reagents, or "linchpins", each of which ultimately corresponds to two or three prenyl units. These allow for attachment of a polyprenyl halide at one end, followed by a Ni(0)-catalyzed cross-coupling at the other terminus with a chloromethylated p-quinone.
REDOX-ACTIVE THERAPEUTICS FOR TREATMENT OF MITOCHONDRIAL DISEASES AND OTHER CONDITIONS AND MODULATION OF ENERGY BIOMARKERS