Synthesis, in vitro and in silico enzyme (COX-1/2 & LOX-5), free radical scavenging and cytotoxicity profiling of the 2,4-dicarbo substituted quinazoline 3-oxides
作者:Malose J. Mphahlele、Eugene E. Onwu、Emmanuel N. Agbo、Marole M. Maluleka、Garland K. More、Yee Siew Choong
DOI:10.1007/s00044-021-02811-9
日期:2022.1
enzymatic assays in vitro and in silico for potential inhibitory effect against cyclooxygenase-1/2 (COX-1/2) and lipoxygenase-5 activities as well as for free radicalscavenging potential and cytotoxicity. The 6-bromo (3k) and 6-iodo substituted 2-(4-chlorophenyl)-4-methylquinazoline 3-oxide (3q) exhibited significant inhibitory effect against both COX-1 (IC50 = 13.9 ± 3.21 µM and 9.7 ± 0.09 µM, respectively)
Camps, Archiv der Pharmazie, 1901, vol. 239, p. 597
作者:Camps
DOI:——
日期:——
Bischler; Howell, Chemische Berichte, 1893, vol. 26, p. 1386
作者:Bischler、Howell
DOI:——
日期:——
Selective Oxidative Decarbonylative Cleavage of Unstrained C(<i>sp</i><sup>3</sup>)–C(<i>sp</i><sup>2</sup>) Bond: Synthesis of Substituted Benzoxazinones
作者:Ajay Verma、Sangit Kumar
DOI:10.1021/acs.orglett.6b02142
日期:2016.9.2
A transition metal (TM)-free practical synthesis of biologically relevant benzoxazinones has been established via a selective oxidative decarbonylative cleavage of an unstrained C(sp3)–C(sp2) bond employing iodine, sodium bicarbonate, and tbutyl hydroperoxide in DMSO at 95 °C. Control experiments and Density Functional Theory (DFT) calculations suggest that the reaction involves a [1,5]H shift and
The radical reactions of N-(2-halogenoalkanoyl)-substitutedanilines (anilides) of type 1 have been investigated under various conditions. Treatment of compounds 1a–1o with Bu3SnH in the presence of (2,2′-azobis(isobutyronitrile) (AIBN) afforded a mixture of the indolones (oxindoles) 2a–2o and the reduction products 5a–5o (Table 1). In contrast, the N-unsubstituted anilides 1p–1s, 1u, and 1v gave the