10132-01-1Relevant articles and documents
Phthalazine-based VEGFR-2 inhibitors: Rationale, design, synthesis, in silico, ADMET profile, docking, and anticancer evaluations
Khedr, Fathalla,Ibrahim, Mohamed-Kamal,Eissa, Ibrahim H.,Abulkhair, Hamada S.,El-Adl, Khaled
, (2021)
In the designed compounds, a new linker was inserted in the form of fragments with verified VEGFR-2 inhibitory potential, including an α,β-unsaturated ketonic fragment, pyrazole, and pyrimidine. Also, new distal hydrophobic moieties were attached to these
1-Piperazinylphthalazines as potential VEGFR-2 inhibitors and anticancer agents: Synthesis and in vitro biological evaluation
Abou-Seri, Sahar M.,Eldehna, Wagdy M.,Ali, Mamdouh M.,Abou El Ella, Dalal A.
, p. 165 - 179 (2016)
In our endeavor towards the development of effective VEGFR-2 inhibitors, three novel series of phthalazine derivatives based on 1-piperazinyl-4-arylphthalazine scaffold were synthesized. All the newly prepared phthalazines 16a-k, 18a-e and 21a-g were evaluated in vitro for their inhibitory activity against VEGFR-2. In particular, compounds 16k and 21d potently inhibited VEGFR-2 at sub-micromolar IC50 values 0.35 ± 0.03 and 0.40 ± 0.04 μM, respectively. Moreover, seventeen selected compounds 16c-e, 16g, 16h, 16j, 16k, 18c-e and 21a-g were evaluated for their in vitro anticancer activity according to US-NCI protocol, where compounds 16k and 21d proved to be the most potent anticancer agents. While, compound 16k exhibited potent broad spectrum anticancer activity with full panel GI50 (MG-MID) value of 3.62 μM, compound 21d showed high selectivity toward leukemia and prostate cancer subpanels [subpanel GI50 (MG-MID) 3.51 and 5.15 μM, respectively]. Molecular docking of compounds16k and 21d into VEGFR-2 active site was performed to explore their potential binding mode.
New 1,4-disubstituted phthalazines: Synthesis, structure and herbicidal evaluation
Bele, Constantin,Darabantu, Mircea
, p. 641 - 646 (2003)
The rapid synthesis of eighteen new 1,4-disubstituted phthalazines bearing an aryl or benzyl substituent at C-4 and a variety of aryloxy groups at C-1 is reported; full structural assignments are provided by NMR and MS data together with the biological evaluation for some representative terms of the series.
New antithrombotic 1-Phthalazinamines with Serotonin Antagonistic Properties
Johnsen, Matthias,Rehse, Klaus,Pertz, Heinz,Stasch, Johannes Peter,Bischoff, Erwin
, p. 591 - 597 (2003)
We report nineteen 4-aryl- and 4-arylalkyl-1-phthalazinamines (5-8) which we prepared and tested for antithrombotic properties. All compounds were assayed for their antiplatelet activity in the "Born test" with collagen as inducer of the aggregation. N-[4-(1H-1,2,4-triazol-1-yl)butyl]-4-phenyl-1-phthalazin-amine (7c) was the most potent compound, having an IC50 of 8 μM. When 5-HT (Serotonin) was used to start aggregation the N-(furan-2-yl-methyl)-4-phenyl-1-pthtalazinamine (8a) had an IC50 of 2 μM. In vivo potencies were highly significant. N-[5-(1H-1,2,4-triazol-1-yl)pentyl]-4-phenyl-1-phthalazinamine (7d) inhibited thrombus formation by 12% (P 2A receptor, which is most likely the mechanism of the inhibition of aggregation by this compound.
N-Substituted-4-phenylphthalazin-1-amine-derived VEGFR-2 inhibitors: Design, synthesis, molecular docking, and anticancer evaluation studies
El-Adl, Khaled,Ibrahim, Mohamed-Kamal,Khedr, Fathalla,Abulkhair, Hamada S.,Eissa, Ibrahim H.
, (2020/12/14)
In accordance with the significant impetus of the discovery of potent vascular endothelial growth factor receptor 2 (VEGFR-2) inhibitors, herein, we report the design, synthesis, and anticancer evaluation of 12 new N-substituted-4-phenylphthalazin-1-amine
Synthesis and in vitro anti-proliferative activity of some novel isatins conjugated with quinazoline/phthalazine hydrazines against triple-negative breast cancer MDA-MB-231 cells as apoptosis-inducing agents
Eldehna, Wagdy M.,Almahli, Hadia,Al-Ansary, Ghada H.,Ghabbour, Hazem A.,Aly, Mohamed H.,Ismael, Omnia E.,Al-Dhfyan, Abdullah,Abdel-Aziz, Hatem A.
, p. 600 - 613 (2017/11/10)
Treatment of patients with triple-negative breast cancer (TNBC) is challenging due to the absence of well- defined molecular targets and the heterogeneity of such disease. In our endeavor to develop potent isatin-based anti-proliferative agents, we utiliz
A novel method for heterocyclic amide-thioamide transformations
Fathalla, Walid,Ali, Ibrahim A. I.,Pazdera, Pavel
supporting information, p. 174 - 181 (2017/02/15)
In this paper, we introduce a novel and convenient method for the transformation of heterocyclic amides into heteocyclic thioamides. A two-step approach was applied for this transformation: Firstly, we applied a chlorination of the heterocyclic amides to afford the corresponding chloroheterocycles. Secondly, the chloroherocycles and N-cyclohexyl dithiocarbamate cyclohexylammonium salt were heated in chloroform for 12 h at 61°C to afford heteocyclic thioamides in excellent yields.
A the cu 2+ a responsive polymers containing iridium complex and its preparation method and application
-
, (2017/01/26)
The invention belongs to the field of photoelectric phosphorescent materials and discloses an iridium complex in response to Cu2, and a preparation method and an application thereof. The iridium complex in response to Cu2 has a structure shown in fo
Synthesis of 1,2-dihydro-1-oxophthalazin-4-yl trifluoromethanesulfonate and its application in the synthesis of 4-(aryl/heteroaryl/alkynyl)phthalazin-1(2H)-one
Dhage, Ganesh Raosaheb,Deshmukh, Santosh Rangnath,Thopate, Shankar Ramchandra
, p. 33377 - 33384 (2015/04/27)
The regioselective synthesis of 1,2-dihydro-1-oxophthalazin-4-yl trifluoromethanesulfonate (3a) has been reported. The reaction of Tf2O (2a) with phthalhydrazide (1a) provides a rapid access to 3a with an excellent yield and a high level of reg
Hydrazine derivatives and o-benzoylbenzoic acid as a source of phthalazines with their antimicrobial activities
Hemdan, Magdy M.,Taha, Sherif M.,Gabr, Adel M.,Elkady, Mohamed Y.
experimental part, p. 102 - 105 (2010/06/19)
Starting from 2-benzoylbenzoic acid (1) and prototype hydrazine itself or some of its simple congeners produce phthalazin-1(2H)-one derivatives 2a-d. Reactions of 2 with P2S5 or POCl3 gave their thione derivatives 3a-c or