首次将TsOH·H 2 O / O 2和适当的双亲核试剂组合使用,将醇和醚确定为可持续的次甲基来源,用于合成喹唑啉酮和苯并咪唑衍生物。氘标记研究清楚地证明了合成杂环的C 2氢来自次甲基。这些独特的反应条件已成功地用于合成棘金龙酮(2e'),2f'(rutaecarpine和(±)evodiamine的常见前体)和二咪唑(6d)。该方法的显着特征包括低毒性,使用商业原料作为底物,成本低,对官能团的耐受性强以及对多种双亲核起始原料的适用性。
[EN] EXPANDED THERAPEUTIC POTENTIAL IN NITROHETEROARYL ANTIMICROBIALS<br/>[FR] POTENTIEL THÉRAPEUTIQUE ÉTENDU DANS DES ANTIMICROBIENS À NITROHÉTÉROARYLE
申请人:UNIV CALIFORNIA
公开号:WO2014205414A1
公开(公告)日:2014-12-24
Disclosed herein are antimicrobial compounds compositions, pharmaceutical compositions, the use and preparation thereof. Some embodiments relate to imidazole, thiazole, and furan derivatives and their use as therapeutic agents.
In this study, we describe the synthesis of 1,4-disustituted-1,2,3-triazolo-quinazoline ribonucleosides or acyclonucleosides by means of 1,3-dipolar cycloaddition between various O or N-alkylated propargyl-quinazoline and 1'-azido-2',3',5'-tri-O-benzoylribose or activated alkylating agents under microwave conditions. None of the compounds selected showed significant anti-HCV activity in vitro.
The activation of the C(sp3)–H of MeOH via HAT for the synthesis of quinazolinones has been achieved using an in situ generated ligand–copper-superoxo complex under visible light.
A selective functionalization of C–C═C bonds toward N–C═O bonds is realized by an n-Bu4NI-catalyzed reaction of 3-methylindoles with primaryamines using TBHP as the unique oxidant. The systematic process involves oxygenation, nitrogenation, ring-opening, and recyclization, affording a broad range of quinazolinones in good to excellent yields.