Discovery of Quinazolin-4(3<i>H</i>)-ones as NLRP3 Inflammasome Inhibitors: Computational Design, Metal-Free Synthesis, and in Vitro Biological Evaluation
作者:Mohd Abdullaha、Shabber Mohammed、Mehboob Ali、Ajay Kumar、Ram A. Vishwakarma、Sandip B. Bharate
DOI:10.1021/acs.joc.9b00138
日期:2019.5.3
NLRP3inflammasome is an important therapeutic target for a number of human diseases. Herein, computationally designed series of quinazolin-4(3H)-ones were synthesized using iodine-catalyzed coupling of arylalkynes (or styrenes) with O-aminobenzamides. The key event in this transformation involves the oxidative cleavage of the C–C triple/double bond and the release of formaldehyde. The reaction relies
A Metal- and Ligand-Free Synthesis of Quinazolin-4(3H)-ones via a Bu4NI/TBHP-Mediated Oxidative Cleavage of the Olefinic C=C Bond
作者:B. K. Karasala、P. Gollamudi、B. Inkollu、S. Vidavalur
DOI:10.1134/s1070428020080163
日期:2020.8
Abstract A metal and ligand-free protocol has been developed for the synthesis of quinazolin-4(3H)-ones in moderate to good yields from o-aminobenzamide and alkenes via a Bu4NI/TBHP-mediated oxidative cleavage of the C=C bond in alkenes.
摘要 已开发出一种无金属和无配体的方案,用于通过Bu 4 NI / TBHP介导的C = C的氧化裂解,从邻氨基苯甲酰胺和烯烃以中等至良好的产率合成喹唑啉-4(3 H)-酮。烯键。
Synthesis and structure–activity relationship study of novel quinazolinone-based inhibitors of MurA
is essential for peptidoglycan biosynthesis, and is therefore an important target for antibacterial drug discovery. We report the synthesis, in silico studies and extensive structure–activityrelationships of a series of quinazolinone-based inhibitors of MurA from Escherichia coli. 3-Benzyloxyphenylquinazolinones showed promising inhibitory potencies against MurA, in the low micromolar range, with an
“On-Water” Synthesis of Quinazolinones and Dihydroquinazolinones Starting from o-Bromobenzonitrile
作者:Zibin Liu、Li-Yan Zeng、Chao Li、Fubiao Yang、Fensheng Qiu、Shuwen Liu、Baomin Xi
DOI:10.3390/molecules23092325
日期:——
A versatile and practical “on-water” protocol was newly developed to synthesize quinazolinones using o-bromobenzonitrile as a novel starting material. Studies have found that air as well as water plays an important role in synthesis of quinazolinones. Further investigation indicated that dihydroquinazolinones can be prepared with this protocol under the protection of N2. The protocol can be extended
A metal-free tandem approach to prepare structurally diverse N-heterocycles: synthesis of 1,2,4-oxadiazoles and pyrimidinones
作者:Puneet K. Gupta、Mohd. Kamil Hussain、Mohd. Asad、Ruchir Kant、Rohit Mahar、Sanjeev K. Shukla、Kanchan Hajela
DOI:10.1039/c4nj00361f
日期:——
N-heterocycles, namely 1,2,4-oxadiazoles and 2,6 disubstituted pyrimidin-4-ones, have been synthesised in one pot via carboxamidation of amidines with aryl carboxylic acids and aryl propargylic acids under metal-free conditions.