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    • 1. 发明申请
    • PROCESS FOR PREPARATION OF 7-DEHYDROCHOLESTEROL
    • 制备7-脱氢胆甾醇的方法
    • WO2015170341A1
    • 2015-11-12
    • PCT/IN2015/000198
    • 2015-05-06
    • FERMENTA BIOTECH LIMITED
    • DATLA, AnupamaTAMORE, JagdishTRIVIKRAM, Sreenath
    • C07J9/00C07J31/00
    • C07J9/00C07J31/003
    • The invention discloses an improved cost-effective process for preparation of 7-Dehydrocholesterol of formula I with good yield and purity, comprising:a) epimerizing 7(alpha+beta) bromo protected cholesterol in presence of tetrabutyl ammonium bromide in toluene or a ketonic solvent or combinations thereof to obtain predominantly 7.alpha-bromo 3-protected cholesterol; b) Reacting 7.apha-bromo 3- protected cholesterol with substituted or unsubstituted thiophenol or its salts in presence of a liquor ammonia to obtain predominantly 7.beta.-thiophenyl)-3-protected cholesterol; c) Oxidizing 7. beta. - thiophenyl 3-protected cholesterol in presence of Cumene hydrogen peroxide and Titanium tetraisopropoxide to obtain 7. beta. -phenyl sulfoxide 3-protected cholesterol; d) Converting 7. beta. -phenyl sulfoxide 3-protected cholesterol into 7-Dehydro 3-protected cholesterol in presence of base; e) purifying 7-Dehydro 3-protected cholesterol by suspending in a suitable organic solvent; and f) Deprotecting the 7-Dehydro 3-protected cholesterol by treating with alkali in presence of methanol to obtain 7-Dehydrocholesterol followed by purification of 7-Dehydrocholesterol from an organic solvent.
    • 本发明公开了一种用于制备具有良好产率和纯度的式I的7-脱氢胆固醇的改进的成本有效的方法,其包括:a)在甲苯或酮溶剂中存在四丁基溴化铵的7(α+β)溴保护的胆固醇差向异构化 或其组合以主要获得7.α-溴3-保护的胆固醇; b)在液氨的存在下,将7-溴-3-保护的胆固醇与取代或未取代的苯硫酚或其盐反应,主要得到7.β-噻吩基)-3-保护的胆固醇; c)氧化7.β。 在苯甲酸过氧化氢和四异丙氧基钛的存在下,将噻吩-3-保护的胆固醇得到7.β。 苯基亚砜3-保护胆固醇; d)转换7. beta。 苯基亚砜将3-保护的胆固醇转化为7-脱氢3-保护的胆固醇,在碱的存在下; e)通过悬浮在合适的有机溶剂中纯化7-脱氢3-保护的胆固醇; 和f)通过在甲醇存在下用碱处理来脱保护7-脱氢3-保护的胆固醇,得到7-脱氢胆固醇,然后从有机溶剂中纯化7-脱氢胆固醇。
    • 6. 发明申请
    • A NEW PHARMACEUTICAL USE OF FUSIDIC ACID AND DERIVATIVES THEREOF
    • 一种新的药物使用方法及其衍生物
    • WO1990004398A1
    • 1990-05-03
    • PCT/DK1989000254
    • 1989-10-30
    • BENDTZEN, Klaus
    • A61K31/575
    • C07J13/007A61K31/565C07J31/003C07J31/006C07J41/0027C07J41/0061
    • The use of fusidic acid or a derivative thereof for the manufacture of a composition for interfering with cytokines in a biological system, in particular for interfering with a cytokine such as a lymphokine, interleukine, monokine, interferon or colony-stimulating factor. Fusidic acid and derivatives thereof are useful for preventing effects of cytokines known to be pathogenetically involved in pathological conditions. Said conditions may e.g. be: insulin-dependent diabetes mellitus (Type 1), hyper- or hypo-functioning of the thyroid gland (e.g. thyroiditis), Addison's disease, endogenous uveitis, eye surgery such as cornea transplantation, cataract operation and laser surgery, transplant rejection, graft-versus-host disease, Crohn's disease or ulcerative colitis, pernicious anemia, celiac disease, contact dermatitis, allergic/atopic dermatitis, pemphigus vulgaris or pemphigoid, multiple sclerosis, systemic lupus erythematosus, polymyalgia rheumatica, conditions related to vasculitis phenomena, neoplastic diseases such as multiple myeloma, septic shock caused by gram-negative bacteria, DIC, arteriosclerosis, periodontal diseases, arthritis, osteoarthrosis or arthritis urica.
    • 使用夫西地酸或其衍生物用于制造用于干扰生物系统中的细胞因子的组合物,特别是用于干扰细胞因子如淋巴因子,白细胞介素,单核因子,干扰素或集落刺激因子。 夫西地酸及其衍生物可用于预防已知病理学参与病理状况的细胞因子的作用。 所述条件可以例如。 是:胰岛素依赖性糖尿病(1型),甲状腺(例如甲状腺炎),艾迪生病,内源性葡萄膜炎,角膜移植等眼外科手术,白内障手术和激光手术,移植排斥反应,移植物 - 抗宿主病,克罗恩病或溃疡性结肠炎,恶性贫血,腹腔疾病,接触性皮炎,过敏性/特应性皮炎,寻常型天疱疮或类天疱疮,多发性硬化症,系统性红斑狼疮,风湿性多肌痛,与血管炎现象相关的病症,肿瘤性疾病 作为多发性骨髓瘤,革兰氏阴性菌引起的败血性休克,DIC,动脉硬化,牙周病,关节炎,骨关节炎或关节炎尿。