FeCl3/NaI has been employed for an efficientreduction of a variety of azides. This method is selective in the presence of a nitro functionality and has been extended for the synthesis of fused [2,1-b]quinazolinone ring systems such as deoxyvasicinone.
FeCl 3 / NaI已用于有效还原各种叠氮化物。该方法在硝基官能团存在的情况下是选择性的,并且已经扩展为合成稠合的[ 2,1- b ]喹唑啉酮环系统,例如脱氧维辛酮。
[EN] NOVEL CLOSTRIDIUM DIFFICILE TOXIN INHIBITORS<br/>[FR] NOUVEAUX INHIBITEURS DE TOXINE DE CLOSTRIDIUM DIFFICILE
申请人:VENENUM BIODESIGN LLC
公开号:WO2017214359A1
公开(公告)日:2017-12-14
The present invention relates to benzodiazepine derivative compounds of formula (I), or pharmaceutically acceptable salts thereof. The present benzodiazepine compounds are useful Clostridium difficile inhibitors in the treatment of Clostridium difficile infection in humans. The present invention provides a pharmaceutical composition containing benzodiazepine compounds of formula (I) and a method of making as well as a method of using the same in treating patients infected with Clostridium difficile infection by administering the same. The compounds of the present invention may be used in combination with additional antibiotics or anti-toxin antibody drugs.
One-pot synthesis of polysubstituted quinazolin-4(3H)-ones via sequential oxidative Ugi/Staudinger/aza-Wittig reactions starting from tertiary amines
作者:Mei Sun、Yan-Ling Yu、Long Zhao、Ming-Wu Ding
DOI:10.1016/j.tet.2021.132368
日期:2021.9
preparation of polysubstituted quinazolin-4(3H)-ones by a sequential oxidative Ugi/Staudinger/aza-Wittig reaction has been developed. The CuCl/TBHP/DMBP-mediated oxidative Ugi reactions of tertiary amines 1, 2-azidobenzoic acids 2 and isocyanides 3 produced the azide intermediates, which were directly treated with triphenylphosphine to produce polysubstituted quinazolin-4(3H)-ones 6 in moderate to good yields
已开发出一种通过顺序氧化 Ugi/Staudinger/aza-Wittig 反应制备多取代喹唑啉-4(3 H )-酮的新一锅法。氯化亚铜/ TBHP / DMBP介导的氧化叔胺的Ugi反应1,2-叠氮基酸2和异氰化物3所产生的叠氮化物中间体,其直接用三苯基膦处理,以产生多取代的喹唑啉-4(3 H ^) -酮6在温和以取得良好的收益。
One-Pot Synthesis of Triazoloquinazolinones<i>via</i>Copper- Catalyzed Tandem Click and Intramolecular CH Amidation
作者:Manikandan Selvaraju、Chung-Ming Sun
DOI:10.1002/adsc.201301013
日期:2014.4.14
novel and highly efficient copper‐catalyzed tandem synthesis of triazoloquinazolinones is explored. The synthetic strategy involves a sequential one‐pot click reaction followed by aerobic intramolecularCHamidation. Two distinct and important transformations were carried out in one‐pot by employing a single cost‐effective copper catalyst. The milder, rapid and ligand‐free reaction conditions as well