CAS: 595-33-5; (8R,9S,10R,13S,14S,17R)-17-Acetyl-6,10,13-Trimethyl-3-Oxo-2,3,8,9,10,11,12,13,14,15,16,17-Dodecahydro-1H-Cyclopenta[a]Phenanthren-17-Yl Acetate

上下游产品

CAS号32634-95-0 6-亚甲基孕甾-4-烯-17A... | CAS号4382-76-7 乙酸甲氧基甲酯 | CAS号4134-58-1 (8R,9S,10R,13S,... | CAS号71-58-9 安宫黄体酮 | CAS号1863-39-4 Pregn-5-en-20-o... | CAS号520-85-4 甲羟孕酮 | CAS号113665-92-2 3β,5,17-trihydr... | CAS号3562-63-8 甲地孕酮

醋酸甲羟孕酮置于乙酸酐,对甲苯磺酸体系中,用 1,4-二氧六环,四氯化碳 作为反应溶剂,化学反应生成 醋酸甲地孕酮
参考文献:Oxidation Of 3-Enol Derivatives Of 4-En-3-Oxo-Steroids By Tert-Butyl Chromate.
标题:Oxidation Of 3-Enol Derivatives Of 4-En-3-Oxo-Steroids By Tert-Butyl Chromate.
摘要:某些4-烯-3-氧代甾体化合物的3-烯醇乙酸酯被叔丁基铬酸盐氧化成相应的7-位异构体,而3-烯醇甲醚则在反应条件下转化为相应的4-烯-3,6-二酮,6β-羟基-4-烯-3-酮或4,6-二烯-3-酮.3-烯醇甲醚是通过在二噁烷中以对甲苯磺酸为催化剂,使用原甲酸三甲酯制备的.17α-乙酰氧基-5α,6β-二氯孕甾烷-3,20-二酮在一歩反应中转化为3-甲氧基-6-氯-17α-乙酰氧基孕甾-3,5-二烯-20-酮.
DOI:10.1248/cpb.11.1167

专利信息

专利号:US-11873305-B2
优先权日:2020-06-30
标题 :Processes for synthesis of substituted indole intermediates for the synthesis of serd compounds
发明人：ZHANG HAIMING; XU JIE; WUITSCHIK GEORG; ANGELAUD REMY; HEROLD SEBASTIAN; STUTZ ALFRED; BRUETSCH TOBIAS; BURKHARD JOHANNES
权利人:GENENTECH INC; HOFFMANN LA ROCHE
摘要:Provided herein are processes for the preparation of indolyl intermediates using Wenker Synthesis for the total synthesis of SERD compounds useful in the treatment of cancer.

专利号:US-12383499-B2
优先权日:2018-01-01
标题:Scale up synthesis of silicasome nanocarriers
发明人：NEL ANDRE E; MENG HUAN; LIU XIANGSHENG
权利人:UNIV CALIFORNIA
摘要:In order to facilitate the approval and commercialization of silicasome drug delivery systems (e.g. irinotecan silicasomes) it is necessary to scale up synthesis of the drug-loaded silicasomes. In this regard, it was discovered that the synthesis protocols used for laboratory synthesis of drug-loaded silicasomes (e.g., 500 mg/batch) do not scale to large scale silicasome production, because the resulting products were too heterogeneous for use as pharmaceuticals. Accordingly, new methods are provided herein that effectively afford the large-scale production of mesoporous silica nanoparticles (MSNPs) and lipid bilayer coated MSNPs (silicasomes).

专利号:US-2012177593-A1
优先权日:2009-07-20
标 题 :Synthesis of dendrimer conjugates
发明人：BAKER JR JAMES R; ZHANG YUEHUA; THOMAS THOMMEY P; DESAI ANKUR MAHESH
权利人:BAKER JR JAMES R; ZHANG YUEHUA; THOMAS THOMMEY P; DESAI ANKUR MAHESH; UNIV MICHIGAN
摘要:The present invention relates to novel methods of synthesis of therapeutic and diagnostic dendrimers. In particular, the present invention is directed to novel dendrimer conjugates, novel methods of synthesizing the same, compositions comprising the conjugates, as well as systems and methods utilizing the conjugates (e.g., in diagnostic and/or therapeutic settings (e.g., for the delivery of therapeutics, imaging, and/or targeting agents (e.g., in disease (e.g., cancer, inflammatory disease) diagnosis and/or therapy, pain therapy, etc.)). Accordingly, dendrimer conjugates of the present invention may further comprise at least two different components for targeting, imaging, sensing, and/or providing a therapeutic or diagnostic material and/or monitoring response to therapy. Furthermore, the novel synthesis methods of certain embodiments of the present invention provide significant advantages with regard to total reaction time and simplicity.

专利号:US-10925977-B2
优先权日:2006-10-05
标 题 :Efficient synthesis of chelators for nuclear imaging and radiotherapy: compositions and applications
发明人：YANG DAVID J; YU DONGFANG; THOMPSON ANDREW S
权利人:YANG DAVID J; YU DONGFANG; THOMPSON ANDREW S; CEIL POINT LLC; UNIV TEXAS
摘要:Novel methods of synthesis of chelator-targeting ligand conjugates, compositions comprising such conjugates, and therapeutic and diagnostic applications of such conjugates are disclosed. The compositions include chelator-targeting ligand conjugates optionally chelated to one or more metal ions. Methods of synthesizing these compositions in high purity are also presented. Also disclosed are methods of imaging, treating and diagnosing disease in a subject using these novel compositions, such as methods of imaging a tumor within a subject and methods of diagnosing myocardial ischemia.

专利号:US-7816544-B2
优先权日:2004-03-23
标 题:Synthesis of rocaglamide natural products via photochemical generation of oxidopyrylium species
发明人：JONES II GUILFORD; GERARD BAUDOUIN; PORCO JR JOHN A
权利人:UNIV BOSTON
摘要:The present invention provides new strategies for the synthesis of compounds of the rocaglamide family and related natural products. In particular, the new biomimetic synthetic approach involves photochemical generation of an oxidopyrylium species from a 3-hydroxychromone derivative followed by 1,3-dipolar cycloaddition of the oxidopyrylium species to a dipolarophile. This approach can be used for the formation of adducts containing an aglain core structure. Methods for the conversion of aglain core structures to aglain, rocaglamide and forbaglin ring systems are also provided. The present invention also relates to the use of rocaglamide/aglain/forbaglin derivatives for the manufacture of medicaments for use in the treatment of cancer or cancerous conditions, disorders associated with cellular hyperproliferation, or NF-κB-dependent conditions.

专利号:US-10973847-B2
优先权日:2017-06-30
标题 :Core-to-surface polymerization for the synthesis of star polymers and uses thereof
发明人：JOHNSON JEREMIAH A; GOLDER MATTHEW R
权利人:MASSACHUSETTS INST TECHNOLOGY
摘要:Disclosed are methods, compositions, reagents, systems, and kits to prepare star polymers, as well as compositions and uses thereof. Various embodiments show that synthesis of these polymers contain low metal concentration to provide polymers for diverse biomedical applications including in vivo applications.