Synthesis and bioevaluation of hybrid 4-aminoquinoline triazines as a new class of antimalarial agents
摘要:
The emergence and rapid spread of chloroquine resistant strains of Plasmodium falciparum has dramatically reduced the chemotherapeutic options. Towards this goal, a series of new class of hybrid 4-aminoquinoline triazines were synthesized and screened against CQ sensitive strain 3D7 of P. falciparum in an in vitro model. Compounds 65 and 69 exhibited more than 99% suppression on day 4 and on day 6 post treatment, compound 69 showed impressive 99.11% suppression against CQ resistant strain N-67 of P. yoelii in an in vivo assay. (C) 2008 Elsevier Ltd. All rights reserved.
A Convenient Synthesis of Triazine-Based Dendrons and Dendrimers via a Convergent Approach and a Study of Their Interactions with Tetrafluorobenzoquinone
efficient and convergent approach to prepare triazine-based dendrons and dendrimers is developed. The steric hindrance resulting from the presence of dioctylamino moieties in the peripheral regions allows the synthesis of soluble dendrons without employing protection and deprotection steps. The triazine-based dendrimers are prepared via reaction of N,N′-dimethylethane-1,2-diamine with the dendrons in a ratio
Antimalarial activity and docking studies of novel bi-functional hybrids derived from 4-aminoquinoline and 1,3,5-triazine against wild and mutant malaria parasites as pf-DHFR inhibitor
Bi-functional conjugates comprised of 4-aminoquinoline and 1,3,5-triazine were synthesized through facile synthetic routes. These compounds were rigorously screened for determination of their antimalarial activity against wild and mutant cultured Plasmodium falciparum. The results disclosed that the conjugates have considerable antimalarial activity against both wild and mutant parasites with marked variation on changing the pattern of substitutions. The observed activity profiles were additionally substantiated by docking studies on both wild and quadruple mutant P. falciparum dihydrofolate reductase thymidylate synthase (pf-DHFR-TS).
Polytriazinyl Compounds as Flame Retardants and Light Stabilizers
申请人:Kaul Bansi Lal
公开号:US20090281215A1
公开(公告)日:2009-11-12
Compounds consisting of an oligomer or a polymer of a 1,3,5-triazine derivative, having the general formula I:
wherein:
X is selected from:
or X is a heterocyclic radical containing in the ring at least one nitrogen atom which radical is linked to the triazine ring through one of such nitrogen atoms,
R
2
is alkyl or cycloalkyl, R
1
is a divalent radical of piperazine of the formula
or R
2
is a divalent radical according to the formula
or R
2
is a radical according to the formula Y
n is an integer from 2 to 30, inclusive,
m is an integer from 2 to 6, inclusive,
p is an integer from 2 to 12, inclusive, and
X
1
═OH,NH
2
or X
whereby X and X
1
may be the same or different, and,
X
2
═H or is a C
1
-C
4
alkyl group,
and a solvent-free process for the production of the compounds of Formula I as well as the use of the self-extinguishing oligomeric or polymeric compounds as flame retardants and light stabilizers in thermoplastic polymers such as polypropylene or regenerated cellulose or polyester.
POLYTRIAZINYL COMPOUNDS AS FLAME RETARDANTS AND LIGHT STABILIZERS
申请人:Kaul Bansi Lal
公开号:US20120071594A1
公开(公告)日:2012-03-22
Compounds consisting of an oligomer or a polymer of a 1,3,5-triazine derivative, having the general formula I:
and a solvent-free process for the production of the compounds of Formula I as well as the use of the self-extinguishing oligomeric or polymeric compounds as flame retardants and light stabilizers in thermoplastic polymers such as polypropylene or regenerated cellulose or polyester.