CAS: 24959-67-9; Bromide

上下游产品

water bromine iodide (1-)cyanide(1-)oxygen hypobromous acid cadmium(II) bromide iodide

1-(2-吗啉-4-基-乙基)-2-氨基苯并咪唑,2-溴-4'-羟基苯乙酮 以 氯仿,乙酸乙酯 用作溶剂,化学反应生成对羟基苯乙酮,溴离子
参考文献:Benzimidazole Compounds
标题:Benzimidazole Compounds
摘要:一种从以下式子(i)中选择的抗糖尿病化合物:##str1## 其中a,B,C,D,N,R.Sub.1,R.Sub.2,R.Sub.3,R.Sub.4,X,Y和z的定义如说明书所述.含有该化合物的药物.

专利信息

专利号:US-2024409495-A1
优先权日:2021-10-20
标 题 :Process for the preparation of 2,7-dihydroxy-9-fluorenone useful for the synthesis of tilorone and its salts
发明人：JAISANKAR PARASURAMAN; DEB INDUBHUSAN; BHATTACHARJEE PINAKI
权利人:COUNCIL SCIENT IND RES
摘要:Methods involving preparation of building blocks of 2,7-dihydroxy-9-fluorenone toward the synthesis of tilorone dihydrochloride salt and other salts (bromide, iodide, fluoride, citrate, oxalate, maleate, phosphate, tartrate, triflate, trifluoroacetate, tetrafluoroborate) of tilorone, and an efficient, safe, cost effective method for the preparation of 2,7-bis-[2-(diethylamino)ethoxy]-fluorenone-9 and its various salts are developed. The methods involve oxygenation of fluorene, nitration of fluorenone, followed by reduction and diazotization toward the formation of 2,7-dihydroxy-9-fluorenone, which is the key intermediate for the formation of 2,7-bis-[2-(diethylamino)ethoxy]-9-fluorenone-dihydrochloride (Tilorone dihydrochloride) and other tilorone salts. The synthesis method has relatively simple operation, mild reaction conditions, high yield, and simple process with yields of 80-97%. Subsequent product purification of this method uses filtration and crystallization methods, avoiding the existing methods of column chromatography. Therefore, the research of its synthetic method being with a wide range of applications from the drug development and material synthesis point of view.

专利号:US-2006287520-A1
优先权日:2005-05-16
标 题 :Synthesis of salinosporamide A and analogues thereof
发明人：DANISHEFSKY SAMUEL J; ENDO ATSUSHI
权利人:DANISHEFSKY SAMUEL J; ENDO ATSUSHI
摘要:A novel synthesis of salinosporamide A is provided. Salinospoamide A as well as structurally related natural products, omuralide and lactacystin, have been shown to be proteasome inhibitors. Therefore, these compounds as well as analogues of these natural products may be useful in the treatment of proliferative diseases such as cancer, autoimmune diseases, diabetic retinopathy, etc. The invention provides for the synthesis of salinosporamide A as well as analogs thereof using a convenient point for derivatization of the bicyclic core. Pharmaceutical compositions and method of using the inventive compounds are also provided.

专利号:US-4592874-A
优先权日:1980-05-14
标 题:Process for the synthesis of alpha-chlorinated chloroformates
发明人：CAGNON GUY C; PITEAU MARC D; SENET JEAN-PIERRE G; OLOFSON ROY A; MARTZ JONATHAN T
权利人:POUDRES & EXPLOSIFS STE NALE
摘要:Process for the synthesis of alpha -chlorinated chloroformates, and new alpha -chlorinated chloroformates. The invention relates to a new process for the manufacture of alpha -chlorinated chloroformates and, to new alpha -chlorinated chloroformates as new industrial products. The process according to the invention consists of a synthesis, by catalytic phosgenation, of alpha -chlorinated chloroformates of the formula: in which: R represents a substituted or unsubstituted hydrocarbon radical and m represents an integer superior or equal to one, this synthesis consisting in reacting phosgene with the aldehyde R-CHO)m, in the presence of a catalyst which is an organic or inorganic substance which is capable in a medium containing an aldehyde of the formula R-CHO)m, phosgene and, possibly, a solvent, of generating a pair of ions one of which is an halogenide anion and the other is a cation which is sufficiently separated from said halogenide anion so as to give to the latter a nucleophilic power enabling it to react with the function(s) aldehyde of the molecule R-CHO)m.

专利号:US-10597358-B2
优先权日:2015-01-16
标题:Synthesis of carbamate or urea compounds
发明人：VAN DER HEIJDEN ANTONIUS EDUARD DOMINICUS MARIA; VAN GEEST ERIK; VAN DEN ELSHOUT JOS JOHAN MATTHIJS HUGO
权利人:TNO
摘要:The invention pertains to the synthesis of carbamate and urea compounds. In particular the invention is directed to the synthesis of carbamate and urea compounds which may be used in the production of compounds that are used to stabilize nitrocellulose. The method of the invention comprises preparing a carbamate or urea derivative comprising reacting an amine and a carbonate or carbamate in the presence of an ionic liquid.

专利号:US-6441165-B2
优先权日:2000-03-31
标 题:Process for the preparation of 11-amino-3-chloro-6, 11-dihydro-5, 5-dioxo-6-methyl-dibenzo[c,f][1,2]thiazepine and application to the synthesis of tianeptine
发明人：BLANCHARD JACKY; TURBE HUGUES; BRIGOT DANIEL
权利人:SERVIER LAB
摘要:Process for the industrial synthesis of the compound of formula (I):and its addition salts.Application to the synthesis of tianeptine and its pharmaceutically acceptable salts.

专利号:US-7858828-B2
优先权日:2008-03-26
标 题 :Process for synthesis of (3R,3'R,6'R)-lutein and its stereoisomers
发明人：KHACHIK FREDERICK; CHANG AN-NI
权利人:UNIV MARYLAND
摘要:(3R,3′R,6′R)-Lutein and (3R,3′R)-zeaxanthin are two dietary carotenoids that are present in most fruits and vegetables commonly consumed in the US. These carotenoids accumulate in the human plasma, major organs, and ocular tissues. In the past decade, numerous epidemiological and experimental studies have shown that lutein and zeaxanthin play an important role in the prevention of age-related macular degeneration (AMD) that is the leading cause of blindness in the U.S. and Western World. The invention provides a process for the synthesis of (3R,3′R,6′R)-lutein and its stereoisomers from commercially available (rac)-α-ionone by a C 15 +C 10 +C 15 coupling strategy. In addition, the present invention also provides access to the precursors of optically active carotenoids with 3-hydroxy-ε-end group that are otherwise difficult to synthesize. The process developed for the synthesis of lutein and its stereoisomers is straightforward and has potential for commercialization.