Design and synthesis of azaindole heterocycle decorated new scaffold in fluorometric sensing of F
<sup>−</sup>
and
<scp>
H
<sub>2</sub>
PO
<sub>4</sub>
</scp>
<sup>−</sup>
作者:Kumaresh Ghosh、Sk. Sarfaraj Ali、Soumen Joardar
DOI:10.1002/jhet.4073
日期:2020.10
7‐Azaindole has been used in designing new molecular structure 1 on enediyne spacer for its application in anion sensing. New structure 1 has been established as efficient fluorescent sensor of H2PO4− and F− ions in CH3CN containing 1% DMSO. While in presence of H2PO4− the emission at 418 nm is decreased to the significant extent in nonratiometric fashion, a ratiometric response in presence of F− is
7-氮杂吲哚已被用于在二烯炔间隔基上设计新的分子结构1,以用于阴离子传感。新的结构1已被确立为H的高效荧光传感器2 PO 4 -和F -离子在CH 3 CN含有1%DMSO。而在H存在2 PO 4 - ,在418纳米的发射降低到在非比例的方式显著程度,F中的存在的比例响应-是用锋利的isoemissive点指出和两个阴离子被有效区分过一系列其他阴离子测试。模型化合物2的类似研究带有吲哚基序的化合物被用来证明在结合过程中1的氮杂吲哚中额外的环氮的关键作用。
Synthesis, biological evaluation and molecular modeling of a novel series of 7-azaindole based tri-heterocyclic compounds as potent CDK2/Cyclin E inhibitors
作者:Christine B. Baltus、Radek Jorda、Christophe Marot、Karel Berka、Václav Bazgier、Vladimír Kryštof、Gildas Prié、Marie-Claude Viaud-Massuard
DOI:10.1016/j.ejmech.2015.12.023
日期:2016.1
From four molecules, inspired by the structural features of fascaplysin, with an interesting potential to inhibit cyclin-dependent kinases (CDKs), we designed a new series of tri-heterocyclic derivatives based on 1H-pyrrolo[2,3-b]pyridine (7-azaindole) and triazole heterocycles. Using a Huisgen type [3 + 2] cycloaddition as the convergent key step, 24 derivatives were synthesized and their biological activities were evaluated. Comparative molecular field analysis (CoMFA), based on three-dimensional quantitative structure activity relationship (3D-QSAR) studies, was conducted on a series of 30 compounds from the literature with high to low known inhibitory activity towards CDK2/cyclin E and was validated by a test set of 5 compounds giving satisfactory predictive r(2) value of 0.92. Remarkably, it also gave a good prediction of pIC(50) for our tri-heterocyclic series which reinforce the validation of this model for the pIC(50) prediction of external set compounds. The most promising compound, 43, showed a micro -molar range inhibitory activity against CDK2/cyclin E and also an antiproliferative and proapoptotic activity against a panel of cancer cell lines. (C) 2015 Elsevier Masson SAS. All rights reserved.