A surprisingly selective, non‐enzymatic kinetic resolution of readily available, racemic β‐chiral ketones enabled the title process, which was applied to a rapid synthesis of several bioactive flavanones in virtually enantiopure form (see scheme; MOM=methoxymethyl, Ts=p‐toluenesulfonyl).
令人惊讶的选择性容易获得的,外消旋的β-手性酮的,非酶动力学拆分启用标题处理,(见方案将其应用于多个生物活性黄烷酮的快速合成在几乎对映体纯形式; MOM =甲氧基甲基,在Ts = p -甲苯磺酰基)。
Kava derived therapeutic compounds and methods of use thereof
申请人:KUALITY HERBCEUTICS LLC
公开号:US10624943B2
公开(公告)日:2020-04-21
Certain embodiments of the invention provide a composition comprising at least two compounds selected from the group consisting of dihydromethysticin, methysticin, dihydrokavain, kavain, desmethoxyyangonin and 11-methoxyyangonin, wherein the composition is substantially free of flavokawain B. Certain embodiments of the invention also provide a method for treating or preventing cancer in a mammal (e.g., a human) in need of such treatment comprising, administering to the mammal a carrier and a compound selected from the group consisting of dihydromethysticin, methysticin, dihydrokavain, kavain, desmethoxyyangonin and 11-methoxyyangonin, wherein the compound is substantially free of other kava extract components.
KAVA DERIVED THERAPEUTIC COMPOUNDS AND METHODS OF USE THEREOF
申请人:XING Chengguo
公开号:US20160279184A1
公开(公告)日:2016-09-29
Certain embodiments of the invention provide a composition comprising at least two compounds selected from the group consisting of dihydromethysticin, methysticin, dihydrokavain, kavain, desmethoxyyangonin and 11-methoxyyangonin, wherein the composition is substantially free of flavokawain B. Certain embodiments of the invention also provide a method for treating or preventing cancer in a mammal (e.g., a human) in need of such treatment comprising, administering to the mammal a carrier and a compound selected from the group consisting of dihydromethysticin, methysticin, dihydrokavain, kavain, desmethoxyyangonin and 11-methoxyyangonin, wherein the compound is substantially free of other kava extract components.
BIOREACHABLE CHIRAL DOPANTS FOR LIQUID CRYSTAL APPLICATIONS
申请人:Zymergen Inc.
公开号:US20220025267A1
公开(公告)日:2022-01-27
The disclosure discusses chiral dopants for liquid-crystalline materials. Chiral dopants can be bioreachable compounds, i.e. compounds produced from microbes through fermentation. Chiral dopants can also include bioreachable materials that are further modified by chemical synthetic steps. Chiral dopants as discussed herein can include biomolecules such as glycyrrhetinic acid (1), S-narigenin (2), shikimic acid (3), alpha-phellandrene (4), betulin (5), malic acid (6), valencene (7), or nootkatone (8), and any stereoisomers or chemically modified derivatives thereof. The disclosure further shows optical properties of such compounds in a liquid-crystalline material.