[EN] COMPOSITIONS AND METHODS FOR INHIBITING INFLUENZA RNA POLYMERASE PA ENDONUCLEASE<br/>[FR] COMPOSITIONS ET PROCÉDÉS POUR INHIBER L'ENDONUCLÉASE DE LA PA DE L'ARN POLYMÉRASE DE LA GRIPPE
申请人:UNIV CALIFORNIA
公开号:WO2017156194A1
公开(公告)日:2017-09-14
There are provided inter alia metalloenzyme inhibitors, such as inhibitors of influenza A RNA dependent RNA polymerase PA subunit endonuclease, and methods of synthesis and use of the same.
Monoaryl- and Bisaryldihydroxytropolones as Potent Inhibitors of Inositol Monophosphatase
作者:Serge R. Piettre、Catherine André,、Marie-Christine Chanal、Jean-Bernard Ducep、Brigitte Lesur、François Piriou、Pierre Raboisson、Jean-Michel Rondeau、Charles Schelcher、Pascale Zimmermann、Axel J. Ganzhorn
DOI:10.1021/jm9701942
日期:1997.12.1
The first successful preparation of mono- and disubstituted 3,7-dihydroxytropolone involves a four-step synthetic scheme. Thus, bromination of 3,7-dihydroxytropolone (8) followed by permethylation of the resultant products furnished gram quantities of intermediates 13-18. Single or double Suzuki coupling reactions between these permethylated monobromo- and dibromodihydroxytropolone derivatives and
Tropone derivatives characterized by having a derivative of oxamic acid at positions 2 and or 5 are disclosed. In addition, the tropone nucleus can be optionally further substituted. The foregoing compounds are useful for preventing or treating allergic conditions in a mammal. Methods for the preparation and use of said compounds are disclosed.
The Grignard Reaction of 3-Halotropolone Methyl Ethers
作者:Haruki Tsuruta、Toshio Mukai
DOI:10.1246/bcsj.41.2489
日期:1968.10
The Grignard reaction of the methyl ethers (I and III) of 3-bromotropolone and those (II and IV) of 3-chlorotropolone with methylmagnesium iodide or phenylmagnesium bromide were investigated. When I or II was allowed to react with methylmagnesium iodide, 2-methoxyphenyldimethylcarbinol (V) and 2-methoxy-6-isopropylphenol (VI) were obtained. The reaction of I or II with phenylmagnesium bromide afforded
研究了3-溴托罗酮的甲醚(I和III)和3-氯托酚酮的甲醚(II和IV)与甲基碘化镁或苯基溴化镁的格氏反应。当I或II与碘化甲基镁反应时,得到2-甲氧基苯基二甲基甲醇(V)和2-甲氧基-6-异丙基苯酚(VI)。I 或 II 与溴化苯基镁反应得到 2-苯基-7-卤代酮(XIII 或 XVII),伴随有 2-卤代二苯甲酮(XV 或 XVIII)和三苯基甲醇衍生物(XIV)。使用溴化苯基镁进行 III 或 IV 的格氏反应得到 2-苯基-3-卤代酮(XVI 或 XIX)。讨论了这些产品形成的机理途径。
Studies on Seven-membered Ring Compounds. XVI. Synthesis of 2-Substituted Cycloheptimidazole Derivatives
作者:Hideo Nakao、Genshun Sunagawa
DOI:10.1248/cpb.13.465
日期:——
In order to obtain 2-substituted cycloheptimidazole, the reaction of 2-methoxytropone (I) with substituted guanidine and amidine was carried out. Reaction of I with monoalkylguanidine afforded a small amount of 2-alkylaminocycloheptimidazole besides 1-alkyl-2-imino-1, 2-dihydrocycloheptimidazole. Reaction of 2-bromo-7-methoxytropone with monoalkylguanidine afforded 2-alkylamino-4-bromocycloheptimidazole and rearranged product, 2-amino-3-alkyl-4(3H)-quinazolinone. However, reaction of dialkylguanidine with I and 2-bromo-7-methoxytropone afforded only one product, 2-dimethylamino-and 2-dimethylamino-4-bromocycloheptimidazole, respectively. Reaction of aromatic amidine with I or 2-chlorotropone afforded 2-phenyl-and 2-pyridylcycloheptimidazole derivatives. Among cycloheptimidazole derivatives, 2-dimethylaminocycloheptimidazole has been found to undergo easily electrophilic substitution reaction, bromination and nitration.