Thermal cyclization of 3-arylamino-3-(2-nitrophenyl)-propenal Schiff base hydrochlorides followed by triethyl phosphite mediated deoxygenation: a facile synthesis of quindolines
摘要:
A simple and useful method for the synthesis of various 2-substituted quindolines starting from 2-nitroacetophenone is described. (c) 2005 Elsevier Ltd. All rights reserved.
Antifungal and antiparasitic indoloquinoline derivates
申请人:Ablordeppey Y. Seth
公开号:US20070232640A1
公开(公告)日:2007-10-04
A compound having the formula:
wherein: R is an electron withdrawing or electron donating moiety;
R
5
and R
10
may be the same or different and are a straight or branched 1-5 carbon or heteroatom chain substituted terminally by a cycloalkyl or aromatic ring, or other structural isomer or complex thereof; n is the position of substitution of R;
Z is N—R
10
, O, S, S═O, CH
2
or C═O; y is 1-5 and Q is Z or NH,
with the proviso that, where Z is NH, N—CH
3
, S or O and R
n
is H, R
5
may not be CH
3
; as well as quaternary ammonium salts thereof and their use as pharmacological compositions and for methods of treatment.
Synthesis and biological evaluation of indoloquinoline alkaloid cryptolepine and its bromo-derivative as dual cholinesterase inhibitors
作者:Vijay K. Nuthakki、Ramesh Mudududdla、Ankita Sharma、Ajay Kumar、Sandip B. Bharate
DOI:10.1016/j.bioorg.2019.103062
日期:2019.9
Alkaloids have always been a great source of cholinesteraseinhibitors. Numerous studies have shown that inhibiting acetylcholinesterase as well as butyrylcholinetserase is advantageous, and have better chances of success in preclinical/ clinical settings. With the objective to discover dual cholinesteraseinhibitors, herein we report synthesis and biologicalevaluation of indoloquinoline alkaloid cryptolepine
Synthesis and Evaluation of Cryptolepine Analogues for Their Potential as New Antimalarial Agents
作者:Colin W. Wright、Jonathan Addae-Kyereme、Anthony G. Breen、John E. Brown、Marlene F. Cox、Simon L. Croft、Yaman Gökçek、Howard Kendrick、Roger M. Phillips、Pamela L. Pollet
DOI:10.1021/jm010929+
日期:2001.9.1
The indoloquinoline alkaloid cryptolepine 1 has potent in vitro antiplasmodial activity, but it is also a DNA intercalator with cytotoxic properties. We have shown that the antiplasmodial mechanism of 1 is likely to be due, at least in part, to a chloroquine-like action that does not depend on intercalation into DNA. A number of substituted analogues of 1 have been prepared that have potent activities
Antifungal and Antiparasitic Indoloquinoline Derivatives
申请人:Ablordeppey Seth Y.
公开号:US20120157493A1
公开(公告)日:2012-06-21
“An indoloquinoline wherein the quarternary N-5 atom is a straight C(1-5) chain, a branched C(1-5) chain, a heteroatom chain, a straight chain substituted terminally by a cycloalkyl or aromatic ring, a branched chain substituted terminally by a cycloalkyl or aromatic ring, a heteroatom chain substituted terminally by a cycloalkyl or aromatic ring; the 10 position is N—R
10
, O, S, S═O, CH
2
, or C═O, where R
10
is a branched C(1-5) chain, a heteroatom chain, a straight chain substituted terminally by a cycloalkyl or aromatic ring, a branched chain substituted terminally by a cycloalkyl or aromatic ring, a heteroatom chain substituted terminally by a cycloalkyl or aromatic ring. In one embodiment the quarternary N-5 atom is —CH
3
and the 10 position is N—(CH
2
)
5
-Ph.”
Identification of bis-quindolines as new antiinfective agents
作者:Leroy G. Mardenborough、Xue Y. Zhu、Pincheng Fan、Melissa R. Jacob、Shabana I. Khan、Larry A. Walker、Seth Y. Ablordeppey
DOI:10.1016/j.bmc.2005.04.008
日期:2005.6
Several N-substituted quindolines were made to further evaluate the role of N-alkylation on the activity of indoloquinolines as antifungal agents. While N-5 substitution is required for these activities, N-10 alkylation alone leads to inactive products but is tolerated in the presence of N-5 alkyl groups. It was also discovered that bis-quindolines appear to have a more expanded antimicrobial spectrum and lower cytotoxicity than their monomeric counterparts. (c) 2005 Elsevier Ltd. All rights reserved.