PhI(OAc)<sub>2</sub>-mediated one-pot oxidative decarboxylation and aromatization of tetrahydro-β-carbolines: synthesis of norharmane, harmane, eudistomin U and eudistomin I
A new strategy for synthesis of β-carbolines via one-pot oxidative decarboxylation at room temperature is developed for the first time.
首次开发了一种在室温下通过一锅法氧化脱羧合成β-咔啉的新策略。
Novel β‐carboline‐based indole‐4,7‐quinone derivatives as NAD(P)H: Quinone‐oxidoreductase‐1 inhibitor with potent antitumor activities by inducing reactive oxygen species, apoptosis, and DNA damage
Eighteen new β‐carboline‐based indole‐4,7‐quinone derivatives (12a–i and 13a–i ) were designed and synthesized, and their in vitro and in vivo antiproliferativeactivities were studied. Most of target compounds showed strong inhibition on three human tumor cells' proliferation. In particular, the most active compound 13g not only displayed more prominent antiproliferativeactivities than β‐lapachone, a clinical
A series of new podophyllotoxin linked β-carboline congeners have been synthesized by coupling various substituted β-carboline acids with 4β-aminopodophyllotoxin. Evaluation of their anticancer activity against a panel of human cancer cell lines such as lung cancer (A549), prostate cancer (DU-145), MDA MB-231 (breast cancer), HT-29 (colon cancer) and HeLa (cervical cancer) suggested that 7i and 7j
Design and synthesis of thiadiazolo-carboxamide bridged β-carboline-indole hybrids: DNA intercalative topo-IIα inhibition with promising antiproliferative activity
impressive cytotoxicity against A549 cell line (IC50: 3.00 ± 1.40 μM). Further target-based assay of these two compounds 12c and 12a revealed their potential as DNAintercalative topoisomerase-IIα inhibitors. Additionally, the antiproliferative activity of compound 12c was measured in A549 cells by traditional apoptosis assays revealing the nuclear, morphological alterations, and depolarization of membrane
A practical synthesis of β-carbolines by tetra-n-butylammonium bromide (TBAB)-mediated cycloaromatization reaction of aldehydes with tryptophan derivatives
作者:Zhen Wang、Zhenzhen Yu、Yao Yao、Yakai Zhang、Xuefeng Xiao、Bin Wang
DOI:10.1016/j.cclet.2019.07.001
日期:2019.8
Abstract A mild and efficient nBu4NBr-mediated oxidative cycloaromatization to prepare β-carbolines from readily available tryptophans and aldehydes is described. The reaction is practical and allows the synthesis of β-carbolines on gram-scale. Some of products crystallized from the reaction mixture and were easily removed by filtration, obviating the need for chromatographic separation.