115955-48-1Relevant articles and documents
Assessment of new triplet forming artificial nucleobases as RNA ligands directed towards HCV IRES IIId loop
Safir Filho, Mauro,Martin, Anthony R.,Benhida, Rachid
, p. 1780 - 1783 (2017)
We report the synthesis of two new artificial nucleobase scaffolds, 1 and 2, featuring adequate hydrogen bonding donors and acceptors for the molecular recognition of U:A and C:G base pairs, respectively. The tethering of these structures to various amino acids and the assessment of these artificial nucleobase-amino acid conjugates as RNA ligands against a model of HCV IRES IIId domain are also reported. Compound 1e displayed the highest affinity (Kd twice lower than neomycin – control). Moreover, it appears that this interaction is enthalpically and entropically favored.
Selective Synthesis of Site-Differentiated Fe4S4 and Fe6S6 Clusters
McSkimming, Alex,Suess, Daniel L.M.
, p. 14904 - 14912 (2018)
Obtaining rational control over the structure and nuclearity of metalloclusters is an ongoing challenge in synthetic Fe-S cluster chemistry. We report a new family of tridentate imidazolin-2-imine ligands L(NImR)3 that can bind [Fe4S4]2+ or [Fe6S6]3+ clusters, depending on the steric profile of the ligand and the reaction stoichiometry. A high-yielding synthetic route to L(NImR)3 ligands (where R is the imidazolyl N substituents) from trianiline and 2-chloroimidazolium precursors is described. For L(NImMe)3 (tris(1,3,5-(3-(N,N-dimethyl-4,5-diphenylimidazolin-2-imino)phenylmethyl))benzene), metalation with 1 equiv of [Ph4P]2[Fe4S4Cl4] and 3 equiv of NaBPh4 furnishes a mixture of products, but adjusting the stoichiometry to 1.5 equiv of [Ph4P]2[Fe4S4Cl4] provides (L(NImMe)3)Fe6S6Cl6 in high yield. Formation of an [Fe6S6]3+ cluster using L(NImTol)3 (tris(1,3,5-(3-(N,N-bis(4-methylphenyl)-4,5-diphenylimidazolin-2-imino)phenylmethyl))benzene) is not observed; instead, the [Fe4S4]2+ cluster [(L(NImTol)3)(Fe4S4Cl)][BPh4] is cleanly generated when 1 equiv of [Ph4P]2[Fe4S4Cl4] is employed. The selectivity for cluster nuclearity is rationalized by the orientation of the imidazolyl rings whereby long N-imidazolyl substituents preclude formation of [Fe6S6]3+ clusters but not [Fe4S4]2+ clusters. Thus, the structure and nuclearity of L(NImR)3-bound Fe-S clusters may be selectively controlled through rational modification the ligand's substituents.
Design, synthesis, in silico, and in vitro evaluation of 3-phenylpyrazole acetamide derivatives as antimycobacterial agents
Gaikwad, Nikhil B.,Nirmale, Krishna,Sahoo, Santosh K.,Ahmad, Mohammad N.,Kaul, Grace,Shukla, Manjulika,Nanduri, Srinivas,Das Gupta, Arunava,Chopra, Sidharth,Yaddanapudi, Madhavi V.
, (2020/12/23)
Mycobacterium tuberculosis (Mtb) is one of the most dangerous pathogens affecting immunocompetent and immunocompromised patients worldwide. Novel molecules, which are efficient and can reduce the duration of therapy against drug-resistant strains, are an
COMPOUND OF 5-HYDROXYL-1,7-NAPHTHYRIDINE SUBSTITUTED BY ARYL OR HETEROARYL, PREPARATION METHOD THEREOF AND PHARMACEUTICAL USE THEREOF
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Paragraph 0154, (2018/03/25)
Disclosed are a compound of the following formula (I) or a pharmaceutically acceptable salt thereof, a preparation method thereof, pharmaceutical compositions and uses thereof in the preparation of a medicine for inhibiting HIF prolyl hydroxylase or a medicine for promoting the generation of endogenous EPO, wherein in the formula (I), R1 and R2 are each independently hydrogen; R3 is hydrogen or C1-3 alkyl; and Ar is an aromatic ring or an heteroaromatic ring selected from a naphthalene ring, a pyridine ring, a thiophene ring, a furan ring and a substituted benzene ring.
Identification of pyrazolo[1,5-a]pyrimidine-3-carboxylates as B-Raf kinase inhibitors
Gopalsamy, Ariamala,Ciszewski, Greg,Hu, Yongbo,Lee, Frederick,Feldberg, Larry,Frommer, Eileen,Kim, Steven,Collins, Karen,Wojciechowicz, Donald,Mallon, Robert
scheme or table, p. 2735 - 2738 (2009/12/31)
B-Raf kinase plays a critical role in the Raf-MEK-ERK signaling pathway and inhibitors of B-Raf could be used in the treatment of melanomas, colorectal cancer, and other Ras related human cancers. We have identified novel small molecule pyrazolo[1,5-a]pyr
Hit to lead optimization of pyrazolo[1,5-a]pyrimidines as B-Raf kinase inhibitors
Gopalsamy, Ariamala,Ciszewski, Greg,Shi, Mengxiao,Berger, Dan,Hu, Yongbo,Lee, Frederick,Feldberg, Larry,Frommer, Eileen,Kim, Steven,Collins, Karen,Wojciechowicz, Donald,Mallon, Robert
scheme or table, p. 6890 - 6892 (2010/05/19)
Our continued effort towards optimization of the pyrazolo[1,5-a]pyrimidine scaffold as B-Raf kinase inhibitors is described. Structure guided design was utilized to introduce kinase hinge region interacting groups in the 2-position of the scaffold. This s
3-AZABICYCLO [3.1.0] HEXANE DERIVATIVES AS VANILLOID RECEPTOR LIGANDS
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Page/Page column 38-39, (2009/08/16)
The present invention relates to 3-azabicyclo[3.1.0]hexane derivatives, which are useful as vanilloid receptor (VR) ligands, methods of treating diseases, conditions and/or disorders modulated by vanilloid receptors with them, and processes for preparing them.
Dihydropyrazolo[1,5-A]pyrimidine and dihydroimidazo[1,5-A]pyrimidine derivatives and methods of use thereof
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Page/Page column 11, (2008/06/13)
The present invention relates to dihydropyrazolo[1,5-a]pyrimidine and dihydroimidazo[1,5-a]pyrimidine derivatives, compositions comprising an effective amount of a dihydropyrazolo[1,5-a]pyrimidine or a dihydroimidazo[1,5-a]pyrimidine derivative and method
Pyrazolo[1,5-A]pyrimidine derivatives and methods of use thereof
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Page/Page column 22, (2010/11/28)
The present invention relates to pyrazolo[1,5-a]pyrimidine derivatives, compositions comprising an effective amount of a pyrazolo[1,5-a]pyrimidine derivative and methods for treating or preventing cancer, comprising administering to a subject in need thereof an effective amount of a pyrazolo[1,5-a]pyrimidine derivative.
Method of using substituted pyrazolo [1,5-a] pyrimidines
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Page/Page column 43, (2010/10/20)
This invention relates to novel methods of use of certain pyrazolo[1,5-a]pyrimidine compounds and the therapeutically acceptable salts thereof. This invention also relates to novel methods of using these compounds as anti-proliferative agents in mammals, including humans.