28987-46-4Relevant academic research and scientific papers
Discovery and structure ? activity relationship exploration of pyrazolo[1,5-a]pyrimidine derivatives as potent FLT3-ITD inhibitors
Chen, Yun,Bai, Gang,Li, Yan,Ning, Yi,Cao, Sufen,Zhou, Jinpei,Ding, Jian,Zhang, Huibin,Xie, Hua,Duan, Wenhu
supporting information, (2021/09/28)
Internal tandem duplications of FLT3 (FLT3-ITD) occur in approximately 25% of all acute myeloid leukemia (AML) cases and confer a poor prognosis. Optimization of the screening hit 1 from our in-house compound library led to the discovery of a series of pyrazolo[1,5-a]pyrimidine derivatives as potent and selective FLT3-ITD inhibitors. Compounds 17 and 19 displayed potent FLT3-ITD activities both with IC50 values of 0.4 nM and excellent antiproliferative activities against AML cell lines. Especially, compounds 17 and 19 inhibited the quizartinib resistance- conferring mutations, FLT3D835Y, both with IC50 values of 0.3 nM. Moreover, western blot analysis indicated that compounds 17 and 19 potently inhibited the phosphorylation of FLT3 and attenuated downstream signaling in AML cells. These results indicated that pyrazolo[1,5-a]pyrimidine derivatives could be promising FLT3-ITD inhibitors for the treatment AML.
Synthesis and Antileishmanial Evaluation of Arylimidamide-Azole Hybrids Containing a Phenoxyalkyl Linker
Abdelhameed, Ahmed,Feng, Mei,Joice, April C.,Zywot, Emilia M.,Jin, Yiru,La Rosa, Chris,Liao, Xiaoping,Meeds, Heidi L.,Kim, Yena,Li, Junan,McElroy, Craig A.,Wang, Michael Zhuo,Werbovetz, Karl A.
, p. 1901 - 1922 (2021/02/22)
Due to the limitations of existing medications, there is a critical need for new drugs to treat visceral leishmaniasis. Since arylimidamides and antifungal azoles both show oral activity in murine visceral leishmaniasis models, a molecular hybridization approach was employed where arylimidamide and azole groups were separated by phenoxyalkyl linkers in an attempt to capitalize on the favorable antileishmanial properties of both series. Among the target compounds synthesized, a greater antileishmanial potency against intracellular Leishmania donovani was observed as the linker length increased from two to eight carbons and when an imidazole ring was employed as the terminal group compared to a 1,2,4-triazole group. Compound 24c (N-(4-((8-(1H-imidazol-1-yl)octyl)oxy)-2-isopropoxyphenyl) picolinimidamide) displayed activity against L. donovani intracellular amastigotes with an IC50 value of 0.53 μM. When tested in a murine visceral leishmaniasis model, compound 24c at a dose of 75 mg/kg/day p.o. for five consecutive days resulted in a modest 33% decrease in liver parasitemia compared to the control group, indicating that further optimization of these molecules is needed. While potent hybrid compounds bearing an imidazole terminal group were also strong inhibitors of recombinant CYP51 from L. donovani, as assessed by a fluorescence-based assay, additional targets are likely to play an important role in the antileishmanial action of these compounds.
PYRIMIDINE DERIVATIVE AND USE THEREOF
-
Paragraph 0166; 0167, (2018/09/27)
The present invention provides a pyrimidine derivative and a use thereof. The pyrimidine derivative is the compound shown in formula I or a pharmaceutically acceptable salt, hydrate, solvate, metabolite or prodrug thereof, wherein, R1, R2, R3, R4 and R5 are, for example, as defined in the specification. The compound can act as an ALK inhibitor, and is for preparing an anti-tumor medicament for suppressing an anaplastic lymphoma kinase.
Design and Synthesis of Highly Active Peroxisome Proliferator-Activated Receptor (PPAR) β/δ Inverse Agonists with Prolonged Cellular Activity
Toth, Philipp M.,Lieber, Sonja,Scheer, Frithjof M.,Schumann, Tim,Schober, Yvonne,Nockher, Wolfgang A.,Adhikary, Till,Müller-Brüsselbach, Sabine,Müller, Rolf,Diederich, Wibke E.
supporting information, p. 488 - 496 (2016/03/12)
Based on 3-(((4-(hexylamino)-2-methoxyphenyl)amino)sulfonyl)-2-thiophenecarboxylic acid methyl ester (ST247, compound 2), a recently described peroxisome proliferator-activated receptor (PPAR)β/δ-selective inverse agonist, we designed and synthesized a se
N2,N4-BIS(4-(PIPERAZINE-1-YL)PHENYL)PIRIMIDINE-2,4-DIAMINE DERIVATIVE OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, AND COMPOSITION CONTAINING SAME AS ACTIVE INGREDIENT FOR PREVENTING OR TREATING CANCER
-
Paragraph 0197; 0198, (2015/06/10)
Disclosed herein are a new N2,N4-bis(4-(piperazin-1-yl)phenyl)pyrimidin-2,4-diamine derivative or a pharmaceutically acceptable salt thereof and a pharmaceutical composition for the prevention or treatment of cancers containing the same as an active ingredient. The compound of the present invention has excellent inhibitory effects against the activities of anaplastic lymphoma kinase (ALK) and activated cdc42-associated kinase (ACK1) and thus can improve the therapeutic effects on the treatment of cancer cells having anaplastic lymphoma kinase fusion proteins such as EML4-ALK and NPM-ALK, and also effectively prevent the recurrence of cancers thus being useful as a pharmaceutical composition for the prevention and treatment of cancers.
N2,N4-BIS(4-(PIPERAZINE-1-YL)PHENYL)PIRIMIDINE-2,4-DIAMINE DERIVATIVE OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, AND COMPOSITION CONTAINING SAME AS ACTIVE INGREDIENT FOR PREVENTING OR TREATING CANCER
-
Paragraph 0076, (2015/07/02)
The present invention relates to a N2,N4-bis(4-(piperazine-1-yl)phenyl)pirimidine-2,4-diamine derivative or a pharmaceutically acceptable salt thereof, and to a composition containing same as an active ingredient for preventing or treating cancer. Since the compound according to the present invention has good effects in inhibiting the activities of anaplastic lymphoma kinase (ALK) and activated Cdc42-associated kinase (ACK1), the compound can have improved therapeutic effects against cancer cells having ALK fusion proteins such as EML4-ALK and NPM-ALK and is expected to be effective in preventing the recurrence of cancer. Therefore, the compound can be effectively used as a composition for preventing or treating cancer.
Nonpolar solvent a key for highly regioselective SNAr reaction in the case of 2,4-difluoronitrobenzene
Sythana, Suresh Kumar,Naramreddy, Surendra R.,Kavitake, Santosh,Kumar,Bhagat, Pundlik R.
, p. 912 - 918 (2014/08/05)
A practical and highly regioselective aromatic nucleophilic substitution reaction for the substrate 2,4-difluoronitrobenzene is demonstrated with various O/S/N-nucleophiles. Solvent screens substantiate the role of a nonpolar solvent in ortho-selective nucleophilic substitution through a six-membered polar transition state.
PROTEIN KINASE C INHIBITORS AND USES THEREOF
-
Paragraph 00587, (2013/10/22)
This disclosure concerns compounds which are useful as inhibitors of protein kinase C (PKC) and are thus useful for treating a variety of diseases and disorders that are mediated or sustained through the activity of PKC. This disclosure also relates to ph
NOVEL THIENOPYRIMIDINE DERIVATIVES, PROCESSES FOR THE PREPARATION THEREOF AND THERAPEUTIC USES THEREOF
-
Paragraph 0532, (2013/10/08)
The present invention relates to compounds of formula (I): wherein R6 is —CONH2 or a —C(Rα)(Rβ)(OH) group; R is a substituted phenyl or heteroaryl group; R7 is an optionally substituted aryl or heteroaryl group. Process for the preparation thereof and therapeutic use thereof.
NOVEL THIENOPYRIMIDINE DERIVATIVES, PROCESSES FOR THE PREPARATION THEREOF AND THERAPEUTIC USES THEREOF
-
Page/Page column 102, (2013/10/22)
The present invention relates to compounds of formula (I): wherein R6 is -CONH2 or a -C(Rα)(Rβ)(OH) group; R is a substituted phenyl or heteroaryl group; R7 is an optionally substituted aryl or heteroaryl group. Process for the preparation thereof and therapeutic use thereof.
