This invention relates to methods of using compositions having health enhancing qualities, and more particularly to compositions having kavalactones, as well as use and preparation of the compositions.
Heterogeneous enantioselective hydrogenation of 2-pyrones over cinchona-modified palladium
作者:Wolf-Rüdiger Huck、Tamas Mallat、Alfons Baiker
DOI:10.1039/b108944g
日期:2002.1.24
Asymmetric hydrogenation of 4-alkoxy and 4-methyl derivatives of 2-pyrones to the corresponding dihydro- or tetrahydropyrones over cinchona-modified Pd/TiO2 is fast under ambient conditions and affords good yields and high ee. cis-Tetrahydropyrones are obtained with 98–99% de. The ee can be further increased by kinetic resolution.
不对称 氢化在环境条件下,在金鸡纳改性的Pd / TiO 2上2-吡喃酮的4-烷氧基和4-甲基衍生物转化为相应的二氢-或四氢吡喃酮是快速的并且提供了良好的产率和高ee。顺式-四氢吡喃酮的de含量为98-99%。ee可以通过动力学拆分进一步提高。
Syntheses of (S)- and (R)-dihydromethysticin from two yeast-reduction products, which can be prepared from one racemic compound
Biologically active ()-Dihydromethysticin (()-) with high enantiomeric purity (>99%ee) was synthesized from the opticallyactive yeast-reduction product, (1 ,2 )-methyl 2-hydroxycyclohexyl acetate (), through the introduction of the 3,4-methylenedioxybenzyl group, Beayer-Villiger oxidation, and conversion to its enolate. Moreover, ()-Dihydromethysticin (()-) with high enantiomeric purity (>99%ee) was
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.