Synthesis, analysis and biological evaluation of novel indolquinonecryptolepine analogues as potential anti-tumour agents
作者:A. Le Gresley、V. Gudivaka、S. Carrington、A. Sinclair、J. E. Brown
DOI:10.1039/c5ob02408k
日期:——
uptake of the synthesised cryptolepines into the nucleus. We report the synthesis and anti-cancer biological evaluation of nine novel cryptolepine analogues, which have greater cytotoxicity than the parent compound and are important lead compounds in the development of novel potent and selective indoloquinone anti-neoplastic agents.
Isolation and Unambiguous Synthesis of Cryptolepinone: An Oxidation Artifact of Cryptolepine
作者:Diana M. Fort、Joane Litvak、Jian Lu Chen、Qing Lu、Puay-Wah Phuan、Raymond Cooper、Donald E. Bierer
DOI:10.1021/np980265f
日期:1998.12.1
Cryptolepinone (3) was isolated as an artifact of extraction from Cryptolepis sanguinolenta. Previously, this compound had been identified as the natural products hydroxycryptolepine (2) and 3. Synthesis via an unambiguous pathway has confirmed the structure of cryptolepinone. Spectroscopic studies in various solvents have shown that the natural product artifact or its synthetic equivalent can exist in the
Cryptolepine analogues containing basic aminoalkyl side-chains at C-11: Synthesis, antiplasmodial activity, and cytotoxicity
作者:João Lavrado、Alexandra Paulo、Jiri Gut、Philip J. Rosenthal、Rui Moreira
DOI:10.1016/j.bmcl.2008.01.015
日期:2008.2
A series of cryptolepine derivatives has been synthesized through the incorporation of short basic side-chains in the C-11 position of the 10H-indolo[3,2-b] quinoline scaffold. Their antiplasmodial activity was evaluated in vitro against the chloroquine resistant Plasmodium falciparum W2 strain, showing IC50 values between 22 and 184 nM, while their cytotoxicity was assessed using HUVEC cells, revealing three compounds with a selectivity ratio higher than 10. The most selective of these derivatives, 4d, with a selectivity ratio of 46, was also the least cytotoxic of the series. (c) 2008 Elsevier Ltd. All rights reserved.