400877-57-8Relevant academic research and scientific papers
Novel pyrazolo[4,3-d]pyrimidine microtubule targeting agents (MTAs): Synthesis, structure–activity relationship, in vitro and in vivo evaluation as antitumor agents
Islam, Farhana,Quadery, Tasdique M.,Bai, Ruoli,Luckett-Chastain, Lerin R.,Hamel, Ernest,Ihnat, Michael A.,Gangjee, Aleem
supporting information, (2021/04/12)
The design, synthesis, and biological evaluation of a series novel N1?methyl pyrazolo[4,3-d]pyrimidines as inhibitors of tubulin polymerization and colchicine binding were described here. Synthesis of target compounds involved alkylation of the pyrazolo scaffold, which afforded two regioisomers. These were separated, characterized and identified with 1H NMR and NOESY spectroscopy. All compounds, except 10, inhibited [3H]colchicine binding to tubulin, and the potent inhibition was similar to that obtained with CA-4. Compounds 9 and 11–13 strongly inhibited the polymerization of tubulin, with IC50 values of 0.45, 0.42, 0.49 and 0.42 μM, respectively. Compounds 14–16 inhibited the polymerization of tubulin with IC50s near ～1 μM. Compounds 9, 12, 13 and 16 inhibited MCF-7 breast cancer cell lines and circumvented βIII-tubulin mediated cancer cell resistance to taxanes and other MTAs, and compounds 9–17 circumvented Pgp-mediated drug resistance. In the standard NCI testing protocol, compound 9 exhibited excellent potency with low to sub nanomolar GI50 values (≤10 nM) against most tumor cell lines, including several multidrug resistant phenotypes. Compound 9 was significantly (P 0.0001) better than paclitaxel at reducing MCF-7 TUBB3 (βIII-tubulin overexpressing) tumors in a mouse xenograft model. Collectively, these studies support the further preclinical development of the pyrazolo[4,3-d]pyrimidine scaffold as a new generation of tubulin inhibitors and 9 as an anticancer agent with advantages over paclitaxel.
Piperidine compound and preparation method and medical application thereof
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Paragraph 0296-0301, (2021/04/07)
The invention discloses a piperidine compound shown as a formula (I) and a preparation method and medical application thereof, and particularly relates to a piperidine USP7 inhibitor compound or pharmaceutically acceptable salt or ester or solvate thereof and a preparation method and application of the piperidine USP7 inhibitor compound or pharmaceutically acceptable salt or ester or solvate thereof. The compound provided by the invention can inhibit the activity of USP7 enzyme, has very good selectivity and druggability, and can be used for preparing medicines for preventing or treating tumor diseases or virus infectious diseases.
Design, Synthesis, and Physicochemical and Pharmacological Profiling of 7-Hydroxy-5-oxopyrazolo[4,3-b]pyridine-6-carboxamide Derivatives with Antiosteoarthritic Activity in Vivo
Mugnaini, Claudia,Kostrzewa, Magdalena,Bryk, Marta,Mahmoud, Ali Mokhtar,Brizzi, Antonella,Lamponi, Stefania,Giorgi, Gianluca,Ferlenghi, Francesca,Vacondio, Federica,MacCioni, Paola,Colombo, Giancarlo,Mor, Marco,Starowicz, Katarzyna,Di Marzo, Vincenzo,Ligresti, Alessia,Corelli, Federico
, p. 7369 - 7391 (2020/09/12)
The hallmark of joint diseases, such as osteoarthritis (OA), is pain, originating from both inflammatory and neuropathic components, and compounds able to modulate the signal transduction pathways of the cannabinoid type-2 receptor (CB2R) can represent a helpful option in the treatment of OA. In this perspective, a set of 18 cannabinoid type-2 receptor (CB2R) ligands was developed based on an unprecedented structure. With the aim of improving the physicochemical properties of previously reported 4-hydroxy-2-quinolone-3-carboxamides, a structural optimization program led to the discovery of isosteric 7-hydroxy-5-oxopyrazolo[4,3-b]pyridine-6-carboxamide derivatives. These new compounds are endowed with high affinity for the CB2R and moderate to good selectivity over the cannabinoid type-1 receptor (CB1R), associated with good physicochemical characteristics. As to the functional activity at the CB2R, compounds able to act either as agonists or as inverse agonists/antagonists were discovered. Among them, compound 51 emerged as a potent CB2R agonist able to reduce pain in rats carrying OA induced by injection of monoiodoacetic acid (MIA).
N-benzylpiperidinol derivatives as novel USP7 inhibitors: Structure–activity relationships and X-ray crystallographic studies
Chen, Caiping,Chen, Hui,Cheng, Keguang,Li, Minglei,Liu, Jun,Liu, Shengjie,Sun, Hongbin,Wang, Yue,Wen, Xiaoan,Xu, Qing-Long,Yuan, Haoliang,Zhou, Jin,Zhou, Shuxi,Zhou, Xinyu
supporting information, (2020/06/03)
USP7 as a deubiquitinase plays important roles in regulating the stability of some oncoproteins including MDM2 and DNMT1, and thus represents a potential anticancer target. Through comparative analysis of USP7 co-crystal structures in complex with the rep
Pyrazolo[4,3-d]pyrimidines as Antitumor Agents
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Paragraph 0048, (2019/09/20)
A compound of Formula I, or optionally a salt or a hydrate of the compound of Formula I is provided: wherein X is one selected from the group consisting of wherein R is an alkyl group having from one to six carbon atoms, and wherein R2 is a halogen atom. A pharmaceutical composition comprising a compound of Formula I, or optionally a salt or a hydrate of the compound of Formula I, and a pharmaceutically acceptable carrier, is provided. A method of treating a patient with cancer is set forth including administering a therapeutically acceptable amount of the compound of Formula I, or a salt or a hydrate of the compound of Formula I, or a pharmaceutical composition comprising a compound of Formula I.
Design, synthesis and biological evaluation of pyridone–aminal derivatives as MNK1/2 inhibitors
Yuan, Xinrui,Wu, Hanshu,Bu, Hong,Zheng, Peiyuan,Zhou, Jinpei,Zhang, Huibin
, p. 1211 - 1225 (2019/02/28)
Excessive phosphorylation of eukaryotic translation initiation factor 4E (eIF4E) plays a major role in the dysregulation of mRNA translation and the activation of tumor cell signaling. eIF4E is exclusively phosphorylated by mitogen-activated protein kinase interacting kinases 1 and 2 (MNK1/2) on Ser209. So, MNK1/2 inhibitors could decrease the level of p-eIF4E and regulate tumor-associated signaling pathways. A series of pyridone–aminal derivatives were synthesized and evaluated as MNK1/2 inhibitors. Several compounds exhibited great inhibitory activity against MNK1/2 and selected compounds showed moderate to excellent anti-proliferative potency against hematologic cancer cell lines. In particular, compound 42i (MNK1 IC50 = 7.0 nM; MNK2 IC50 = 6.1 nM) proved to be the most potent compound against TMD-8 cell line with IC50 value of 0.91 μM. Furthermore, 42i could block the phosphorylation level of eIF4E in CT-26 cell line, and 42i inhibited the tumor growth of CT-26 allograft model significantly. These results indicated that compound 42i was a promising MNK1/2 inhibitor for the potent treatment of colon cancer.
SUBSTITUTED 2-AZABICYCLO[3.1.1]HEPTANE AND 2-AZABICYCLO[3.2.1]OCTANE DERIVATIVES AS OREXIN RECEPTOR ANTAGONISTS
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Page/Page column 126; 127, (2019/03/17)
There is provided a compound of formula (I), wherein L1 to L3, R1 to R4, X, A and B have meanings given in the description, and pharmaceutically acceptable salts, solvates and prodrugs thereof, which compounds are useful as antagonists of the orexin-1 and orexin-2 receptors or as selective antagonists of the orexin-1 receptor, and thus, in particular, in the treatment or prevention of inter alia substance dependence, addiction, anxiety disorders, panic disorders, binge eating, compulsive disorders, impulse control disorders, cognitive impairment and Alzheimer's disease.
2-AZABICYCLO[3.1.1] DERIVATIVES AS ANTAGONISTS OF THE OREXIN-1 AND OREXIN-2 RECEPTORS
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Page/Page column 77; 78, (2019/05/15)
There is provided a compound of formula I, wherein L1, R1, R2, R5, X, A and B have meanings given in the description, and pharmaceutically acceptable salts, solvates and prodrugs thereof, which compounds are useful as antagonists of the orexin-1 and orexin-2 receptors or as selective antagonists of the orexin-1 receptor, and thus, in particular, in the treatment or prevention of inter alia substance dependence, addiction, anxiety disorders, panic disorders, binge eating, compulsive disorders, impulse control disorders, cognitive impairment and Alzheimer's disease.
HETEROCYCLIC COMPOUND
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Paragraph 0293, (2018/03/25)
The present invention relates to a compound which can be useful for the treatment or prevention of SPT-related diseases including cancer and congenital diseases associated with sphingolipid accumulation (including Niemann-Pick disease).
HETEROAROMATIC DERIVATIVES AS NIK INHIBITORS
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Page/Page column 299; 306, (2018/02/03)
The present invention relates to pharmaceutical agents useful for therapy and/or prophylaxis in a mammal, and in particular to inhibitors of NF-κB-inducing kinase (NIK - also known as MAP3K14) useful for treating diseases such as cancer, inflammatory disorders, metabolic disorders and autoimmune disorders. The invention is also directed to pharmaceutical compositions comprising such compounds, and to the use of such compounds or pharmaceutical compositions for the prevention or treatment of diseases such as cancer, inflammatory disorders, metabolic disorders including obesity and diabetes, and autoimmune disorders.
