The one-potsynthesis of quinazolinone derivatives from the reaction of anthranilic acid, trialkyl orthoformate and amines in the presence of lanthanum(III) nitrate hexahydrate or p-toluenesulfonic acid has been carried out. The reaction occurred in a few minutes undersolvent-freeconditions and in excellent yields.
Eco-friendly, solvent-free novel one-pot, three-component synthesis of quinazolinones at ambient temperature catalyzed by silica gel-supported phosphomolybdic acid
作者:Gowravaram Sabitha、N. Mallikarjuna Reddy、M. Nagendra Prasad、G. S. K. Raja、J. S. Yadav
DOI:10.1002/jhet.361
日期:——
Silica gel supported Phosphomolybdicacid (PMA.SiO2) catalyzes efficiently the one‐pot three‐component coupling reaction of anthranilic acid, orthoesters, and amines at room temperature to afford 4(3H)‐Quinazolinones in high to excellent yields under solvent‐free conditions. The supported catalyst can be recovered and reused. J. Heterocyclic Chem., (2010).
[EN] SUBSTITUTED AMINOPYRIMIDINE COMPOUNDS AND METHODS OF USE<br/>[FR] COMPOSÉS SUBSTITUÉS D'AMINOPYRIMIDINE ET PROCÉDÉS D'UTILISATION
申请人:CALITOR SCIENCES LLC
公开号:WO2015042077A1
公开(公告)日:2015-03-26
The invention relates to the preparation and use of new aminopyrimidine derivatives as drug candidates in free form or in pharmaceutically acceptable salt form and formulations thereof for the modulation of a disorder or disease which is mediated by the activity of the PI3K enzymes. The invention also provides pharmaceutically acceptable compositions comprising such compounds and methods of using the compositions in the treatment of disorders or diseases, such as disorders of immunity and inflammation in which PI3K enzymes play a role in leukocyte function, and hyperproliferative disorders associated with PI3K activity, including but not restricted to leukernias and solid tumors, in mammals, especially humans.
The use of amide carbonylgroups of substrates as weakly coordinating directinggroups has received a significant amount of attention. Recently, difluoromethylene alkynes have been successfully used in fluorination reactions, resulting in the preparation of various fluorine-containing compounds. This work describes a [4+2] annulation method for creating a range of fluorinated quinolino[2,1-b]quinazolinone
使用底物的酰胺羰基作为弱配位导向基团已受到广泛关注。近年来,二氟亚甲基炔已成功用于氟化反应,从而制备了各种含氟化合物。这项工作描述了一种 [4+2] 成环方法,用于制备一系列氟化喹啉并[2,1- b ]喹唑啉酮衍生物。该衍生物是通过 Rh(III) 催化的 3-苯基喹唑啉酮和偕二氟亚甲基炔的级联环化形成的。
GRAVIER, DENIS;DUPIN, JEAN-PIERRE;CASADEBAIG, FRANCOISE;HOU, GENEVIEVE;BO+, EUR. J. MED. CHEM., 24,(1989) N, C. 531-535