CAS: 57096-02-3; 4'-Hydroxywogonin

上下游产品

CAS号41440-05-5 8-羟基芹菜素

📜5,7,8-三羟基-2-(4-羟基苯基)苯并吡喃-4-酮置于o-Methyl Transferase From Cell-Free Extract Of Citrus Mitis,[methyl-14C]-S-Adenosyl-L-Methionine,2-巯基乙醇体系中,用 水,二甲基亚砜 作为反应溶剂,化学反应 0.5H,反应生成 4'-羟基汉黄芩素,5,7,8-Trihydroxy-4'-Methoxyflavone
参考文献:橙子无细胞提取物对黄酮类化合物的 O-甲基化
标题:橙子无细胞提取物对黄酮类化合物的 O-甲基化
摘要:摘要 柑桔(citrus Mitis)的无细胞提取物催化了许多类黄酮的几乎所有羟基的o-甲基化,表明柑橘组织中存在邻位,间位,对位和3-O-甲基转移酶.后者,迄今未报道的酶,催化高良姜素和槲皮素的 3-O-甲基醚的形成.许多化合物的逐步 O-甲基化,尤其是槲皮素和槲皮素,往往表明多酶复合物表面上存在协调的 O-甲基化序列.所使用的类黄酮底物的甲基受体能力与它们的羟基取代模式和它们的负电子密度分布有关.
DOI:10.1016/0031-9422(80)85102-8

专利信息

专利号:US-5643598-A
优先权日:1988-03-09
标 题 :Method of skin care utilizing liposomes containing Scutellaria extracts
发明人：MEYBECK ALAIN
权利人:LVMH RECH
摘要:The invention relates to a composition based on hydrated lipid lamellar phases or liposomes. n This composition is characterized in that said hydrated lipid lamellar phases or said liposomes contain at least in part an extract of Scutellaria, or at least one active substance isolated from such an extract or obtained by chemical synthesis, particularly wogonine, 2'-hydroxy-wogonine, baicaleine, neobaicaleine, oroxindine and baicaline. n This composition is useful for the preparation of cosmetic or pharmaceutical, particularly dermatological compositions, with anti-allergic, anti-inflammatory or anti-ageing activity.