β-Carboline-directed decarboxylative acylation of ortho-C(sp<sup>2</sup>)–H of the aryl ring of aryl(β-carbolin-1-yl)methanones with α-ketoacids under palladium catalysis
作者:Shivalinga Kolle、Sanjay Batra
DOI:10.1039/c6ra11811a
日期:——
A palladium-catalysed β-carboline directed decarboxylative acylation of ortho-C(sp2)–H of the aryl ring of aryl(β-carbolin-1-yl)methanones using α-oxocarboxylic acid as the acyl ion equivalent to form (2-aroylaryl)(β-carbolin-2-yl)methanones is described. The utility of these products for preparing β-carboline-tethered phthalazine systems is also demonstrated.
Photoredox Generated Vinyl Radicals: Synthesis of Bisindoles and β-Carbolines
作者:Neha Chalotra、Ajaz Ahmed、Masood Ahmad Rizvi、Zakir Hussain、Qazi Naveed Ahmed、Bhahwal Ali Shah
DOI:10.1021/acs.joc.8b02193
日期:2018.12.7
A photoredox catalyzed approach enabling use of alkynes as surrogate of 2-oxoaldehydes/1,2-diones is reported. The method overcomes the difficulty associated with application of unsubstituted aliphatic α-oxoaldehydes, which has hitherto limited their general use. Indoles, tryptamine, and tryptophan methyl ester participated in the reaction to give a variety of α-oxo based analogues. Quantum yield investigations
Multi‐birds with one stone: A cascade couplingstrategy was developed for the synthesis of β‐carbolines. The method can direct the synthesis of β‐carboline and isoquinoline‐containing natural products with high yields. Moreover, this protocol can also be further applied towards the totalsynthesis of natural products fascaplysin and papaverin (see scheme).
Synthesis, crystal structure and biological activity of β-carboline based selective CDK4-cyclin D1 inhibitors
作者:Marcos D. García、A. James Wilson、Daniel P. G. Emmerson、Paul R. Jenkins、Sachin Mahale、Bhabatosh Chaudhuri
DOI:10.1039/b613861f
日期:——
The design, synthesis and biological activity of a series of non-planar dihydro-β-carboline and β-carboline-based derivatives of the toxic anticancer agent fascaplysin is presented. We show these compounds to be selective inhibitors of CDK4 over CDK2 with an IC50 (CDK4-cyclin D1) = 11 µmol for the best compound in the series 4d. The crystallographic analysis of some of the compounds synthesised (3b/d and 4aâd) was carried out, in an effort to estimate the structural similarities between the designed inhibitors and the model compound fascaplysin.
Total Syntheses of Eudistomins Y<sub>1</sub>-Y<sub>7</sub>by an Efficient One-Pot Process of Tandem Benzylic Oxidation and Aromatization of 1-Benzyl-3,4-dihydro-β-Carbolines
作者:Tien Ha Trieu、Jing Dong、Qiang Zhang、Bo Zheng、Tian-Zhuo Meng、Xia Lu、Xiao-Xin Shi
DOI:10.1002/ejoc.201300080
日期:2013.6
The first total synthesis of eudistomin Y7 (7) and totalsyntheses of eudistomins Y1–Y6 (1–6) are described. An efficient room-temperature conversion of 1-benzyl-3,4-dihydro-β-carbolines (11) into 1-benzoyl-β-carbolines (14) by a one-potprocess of tandembenzylicoxidation and aromatization as the key step of these totalsyntheses was also studied in detail.