CAS: 29838-67-3; (2R,3R)-2-(3,4-Dihydroxyphenyl)-5,7-Dihydroxy-3-(((2S,3R,4R,5R,6S)-3,4,5-Trihydroxy-6-Methyltetrahydro-2H-Pyran-2-yl)Oxy)Chroman-4-One

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CAS号294203-79-5 (2R,3R)-5,7-bis... | CAS号20728-73-8 5,7,3',4'-四-O-苄基儿茶素 | CAS号80152-99-4 1-O-acetyl-2,3,... | CAS号104495-20-7 6-deoxy-2,3,4-t... | CAS号294203-76-2 (2R,3S)-5,7-bis... | CAS号294203-78-4 (2R,3S,4S)-5,7-... | CAS号480-18-2 花旗松素

(2R,3S)-5,7-二(苄氧基)-2-[3,4-二(苄氧基)苯基]-3-色满醇置于钯 重铬酸吡啶,二氯二茂铪,氢气,Silver Trifluoromethanesulfonate,2,3-二氯-5,6-二氰基-1,4-苯醌体系中,用 甲醇,二氯甲烷,水 用作溶剂,化学反应 26.0H,反应生成落新妇苷
参考文献:First Synthesis Of Astilbin,Biologically Active Glycosyl Flavonoid Isolated From Chinese Folk Medicine
标题:First Synthesis Of Astilbin,Biologically Active Glycosyl Flavonoid Isolated From Chinese Folk Medicine
摘要:A Synthetic Route To A Biologically Active Glycosyl Flavonoid,Astilbin (1),Was Developed. The Tetra-Benzyl Ether 4,Derived From (+)-Catechin,Was Glycosylated With The L-Rhamnosyl Donor 10 By Using Cp2Hfcl2Agclo4,And Subsequent Oxidation Of The C(4) Position Of The Flavan Skeleton Followed By Deprotection Gave 1. (C) 2000 Elsevier Science Ltd. All Rights Reserved.
Doi:10.1016/s0040-4039(00)00826-1

专利信息

专利号:US-2007232495-A1
优先权日:2006-03-24
标题:Compositions and methods to add value to plant products, increasing the commercial quality, resistance to external factors and polyphenol content thereof
发明人：NAPPA ALVARO O; LORENZINI FELIPE C; SANHUEZA ANDRES L
权利人:NAPPA ALVARO O; LORENZINI FELIPE C; SANHUEZA ANDRES L
摘要:The invention is related to compositions and methods that naturally protect plant tissues against ultraviolet radiation and temperature, thus giving protection against sunburn to plants, plant parts, fruits and/or flowers during their development. The invention is also related to compositions and methods to naturally improve the color of plants, plant parts, fruits and/or flowers by inducing the natural synthesis of flavonoids and anthocyanins present in plants. Likewise, the present invention is directed to improving the nutritional value of plants, plant parts, fruits and/or flowers by increasing the normal levels of polyphenolic compounds, especially flavonoids, present therein. Additionally, the present invention is related to compositions and methods that give more resistance to plants, plant parts, fruits and/or flowers against pathogens as bacteria and fungi. Finally, the present invention is related to plants, plant parts, fruits, flowers and/or propagating material treated with the compositions described in the present document.

专利号:US-2007036742-A1
优先权日:2005-08-09
标题 :Methods and compositions for modulating hair growth or regrowth
发明人：ROUFS JAMES B; DUVEL LANE A; FAST DAVID J; GLYNN KELLY M
权利人:ACCESS BUSINESS GROUP INT LLC
摘要:The present invention relates to compositions and methods for modulating hair growth or regrowth. The compositions of the present invention comprise extracts of one or more of the following: Boswellia serrata, Undaria pinnatifida, green tea (e.g., Camellia sinensis ), shiso, Pureraria mirifica, luteolin (e.g. Perilla ocymoides leaf extract), astilbin, vitamin E, amentoflavone, tetrahydropiperine, licochalcone, astaxanthin, red clover, Brassica juncea, unfermented green rooibos, enzyme CoQ10, salvia, ximenynic acid, hops oleoresin, apple, soy, saw palmetto, or ellagic extract, or any derivative thereof. In particular, the compositions and methods of the present invention can be used to stimulate or increase hair growth and/or prevent or slow the loss of hair by having one or more of the following functions: (a) inhibiting synthesis of DHT; (b) inhibiting proteasomal activity; (c) inhibiting IL-1 activity; (d) increasing vascularization; (e) increasing expression of vascular endothelial growth factor; (f) increasing expression of keratinocyte growth factor; (g) inhibiting inflammation; or (h) acting as an antibacterial.

专利号:CN-115612114-A
优先权日:2021-07-14
标 题:Method and application of copolymer film and its enzymatic self-assembly synthesis