Modification of biologically active amides and amines with fluoro-containing heterocycles 11. Tetrahydrocarbazoles modified with 2-(5-fluoropyridin-3-yl)ethyl fragment
作者:V. B. Sokolov、A. Yu. Aksinenko、N. S. Nikolaeva、V. V. Grigor’ev、A. S. Kinzirsky、S. O. Bachurin
DOI:10.1007/s11172-014-0561-3
日期:2014.5
A method for the modification of tetrahydrocarbazoles with the 2-(5-fluoropyridin-3-yl)ethyl fragment was suggest, which consists in the reaction of 5-fluoro-3-vinylpyridine with tetrahydrocarbazoles under conditions of fluoride ion catalysis and leads to the earlier unknown 9-[2-(5-fluoropyridin-3-yl)ethyl]-2,3,4,9-tetrahydro-1H-carbazoles. Method of radioligand binding was used to study the influence of compounds synthesized on neuronal NMDA-receptors.
Synthesis and reactions of 4-hydroxy-8,9,10,11- tetrahydropyrido[3,2,1-jk]carbazol-6-ones
作者:Wolfgang Stadlbauer、Hoai Van Dang、Birgit S. Berger
DOI:10.1002/jhet.325
日期:——
substituent in 11 gave 5‐azido‐ and 5‐amino products 12, 14 or 16. Reactions at the aromatic ring were not observed. Chlorination of 4‐hydroxypyridocarbazoles 6 with phosphoryl chloride by nucleophilic substitution took place exclusively at the 4‐position and gave 4‐chloropyridocarbazolones 17, which were further reacted to azides and amines 18, 19. J. Heterocyclic Chem., (2010).
四氢咔唑4从苯肼和环己酮得到的,得到由环缩合与2-取代的丙二酸酯5在所有情况下的4-羟基-8,9,10,11-四氢吡啶并[3,2,1- JK ]咔唑-6-酮6通过在攻击四氢咔唑4的氮和芳环; 环化的方向不取决于芳环或饱和环中的取代基。不能分离出异构的吡啶并咔唑。pyridocarbazoles的电子取代6温和的条件下发生在仅仅5位,并给pyridocarbazolediones 9,10,11含5-硝基,5-羟基或5-氯取代基。在氯取代基的交换11,得到5-叠氮基和5-氨基制品12,14或16。没有观察到在芳环上的反应。4- hydroxypyridocarbazoles氯化6与通过亲核取代磷酰氯发生只在4位和得到4- chloropyridocarbazolones 17,将其进一步反应的叠氮化物和胺18,19。J.杂环化学。(2010)。
[EN] NOVEL COMPOUND, PREPARATION METHOD THEREOF, AND USE THEREOF<br/>[FR] NOUVEAU COMPOSÉ, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION
申请人:DAEGU GYEONGBUK MEDICAL INNOVATION FOUND
公开号:WO2021145729A1
公开(公告)日:2021-07-22
The present invention relates to a method for preparing a biomaterial having selectively functionalized tyrosine, a biomaterial having selectively functionalized tyrosine, and a pharmaceutical composition containing the same as an active ingredient. The method for preparing a biomaterial to which a compound represented by formula 2 is coupled, of the present invention, allows the compound represented by formula 2 to be selectively coupled, in a high yield in a biomaterial, to tyrosine, which is present on the surface of an aqueous solution such that the coupling thereof to amino acids other than tyrosine does not occur and, when only one tyrosine is present, heterogeneous mixtures are not present and the inherent activity of the biomaterial is maintained, and thus the compound can be effectively used as a pharmaceutical composition containing a biomaterial drug as an active ingredient. In addition, the method can selectively functionalize tyrosine, and thus can be effectively used for tyrosine functionalization in a biomaterial.
Novel SO3H-functionalized ionic liquids catalyzed a simple, green and efficient procedure for Fischer indole synthesis in water under microwave irradiation
作者:Bai Lin Li、Dan-Qian Xu、Ai Guo Zhong
DOI:10.1016/j.jfluchem.2012.09.010
日期:2012.12
ionic liquids were successfully applied as catalysts for one-pot Fischer indole synthesisundermicrowaveirradiation and in a water medium. Various types of indoles were prepared using single-carbonyl ketones/aldehydes or cyclohexandiones with aryhydrazine hydrochlorides in 86–96% yields in waterundermicrowaveirradiation. The indole products could be conveniently separated from the reaction mixture
新型SO 3 H官能化离子液体已成功地用作微波辐射下和在水介质中一锅费休吲哚合成的催化剂。在微波辐射下,使用单羰基酮/醛或环己二酮与盐酸肼肼制备的各种类型的吲哚,在水中的产率为86-96%。吲哚产物可通过过滤方便地从反应混合物中分离出来,并且[(HSO 3 -p)2 im] [CF 3 SO 3 ] / H 2 O的催化体系可直接重复使用而无需任何处理。整个过程简单,省时且环保。
Fischer indole synthesis catalyzed by novel SO3H-functionalized ionic liquids in water
the one-pot Fischerindole synthesis in water medium. The sequence of the catalytic activity observed in the transformation was in good agreement with the Brønsted acidity order determined by the Hammett method. Various types of indoles from single-carbonyl ketones/aldehydes and cyclohexandiones were provided in 68–96% yields using the catalytic system of [(HSO3-p)2im][HSO4]/H2O. The indole products could