571189-49-6

Usage

Uses

Used in Chemical Mechanical Planarization (CMP) Industry:
1-METHYL-4-(6-AMINOPYRIDIN-3-YL)PIPERAZINE is used as a chemical additive for CMP processes, specifically for tungsten-containing substrates. Its application reason is to enhance the planarization efficiency and improve the overall quality of the substrate surface, which is crucial for the performance of semiconductor devices and other microelectronic components.

Upstream product

• 109-01-3 1-methyl-piperazine 
• 53939-30-3 5-bromo-2-chloropyridine 
• 52092-47-4 5-chloro-2-nitropyridine 
• 779345-37-8 5-fluoro-2-nitro-pyridine 
• 1072-97-5 5-bromo-2-pyridylamine 
• 20511-12-0 2-amino-5-iodopyridine 
• 39856-50-3 5-bromo2-nitropyridine 
• 657410-79-2 1-methyl-4-(6-nitro-pyridin-3-yl)-piperazine 

Downstream Products

• 943747-42-0 (4Z)-6-bromo-4-({[5-(4-methylpiperazin-1-yl)pyridin-2-yl]amino}methylene)isoquinoline-1,3(2H,4H)-dione 
• 1353553-11-3 N-(5-(4-methylpiperazin-1-yl)pyridin-2-yl)-4-(3-nitrophenoxy)thieno[3,2-d]pyrimidin-2-amine 
• 1346670-46-9 2-(5-fluoro-2-(hydroxymethyl)-3-(1-methyl-5-((5-(4-methylpiperazin-1-yl)pyridin-2-yl)amino)-6-oxo-1,6-dihydropyridin-3-yl)phenyl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-one 
• 1346671-95-1 4-fluoro-2-(1-methyl-5-(5-(4-methylpiperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl acetate 
• 1346669-62-2 2-(2-(hydroxymethyl)-3-(1-methyl-5-(5-(4-methylpiperazin-1-yl)pyridine-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)phenyl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-one 
• 1346672-82-9 acetic acid 2-{1-methyl-5-[5-(4-methyl-piperazin-1-yl)pyridin-2-ylamino]-6-oxo-1,6-dihydro-pyridin-3-yl}-6-(1-oxo-3,4,6,7,8,9-hexahydro-1H-pyrazino[1,2-a]indol-2-yl)benzyl ester 
• 1242156-62-2 1-methyl-3-[5-(4-methyl-piperazin-1-yl)-pyridin-2-ylamino]-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyridin-2-one 
• 1349074-17-4 N-(1-methylethyl)-2-[(5-methyl-2-{[5-(4-methyl-1-piperazinyl)-2-pyridinyl]amino}-4-pyrimidinyl)amino]benzamide 
• 1178884-45-1 5-bromo-1-methyl-3-((5-(4-methylpiperazin-1-yl)pyridin-2-yl)amino)pyridin-2(1H)-one 

Relevant academic research and scientific papers

Discovery of Dual CDK6/PIM1 Inhibitors with a Novel Structure, High Potency, and Favorable Druggability for the Treatment of Acute Myeloid Leukemia

Nowadays, the simultaneous inhibition of two or more pathways plays an increasingly important role in cancer treatment due to the complex and diverse pathogenesis of cancer, and the combination of the cyclin-dependent kinase 6 (CDK6) inhibitor and PIM1 inhibitor was found to generate synergistic effects in acute myeloid leukemia (AML) treatment. Therefore, we discovered a novel lead 1 targeting CDK6/PIM1 via pharmacophore-based and structure-based virtual screening, synthesized five different series of new derivates, and obtained a potent and balanced dual CDK6/PIM1 inhibitor 51, which showed high kinase selectivity. Meanwhile, 51 displayed an excellent safety profile and great pharmacokinetic properties. Furthermore, 51 displayed stronger potency in reducing the burden of AML than palbociclib and SMI-4a in vivo. In summary, we offered a new direction for AML treatment and provided a great lead compound for AML preclinical studies.

Synthesis and biological evaluation of 6-(pyrimidin-4-yl)-1H-pyrazolo[4,3-b]pyridine derivatives as novel dual FLT3/CDK4 inhibitors

FMS-like tyrosine kinase-3 (FLT3) and cyclin-dependent kinase 4/6 (CDK4/6) inhibitors have been proven to play a significant role in tumor therapy. Herein, based on the previously reported JAK2/FLT3 inhibitor 18e, we described the synthesis, structure–activity relationship and biological evaluation of a series of unique 6-(pyrimidin-4-yl)-1H-pyrazolo[4,3-b]pyridine derivatives that inhibited FLT3 and CDK4 kinases. The optimized compound 23k exhibited low nanomolar range activities with IC50 values of 11 and 7 nM for FLT3 and CDK4, respectively. In the MV4-11 xenograft tumor model, the tumor growth inhibition rate of 23k dosed at 200 mg/kg was 67%, suggesting that 23k possessed an antitumor therapeutic effect.

FUSED PYRIMIDINE PYRIDINONE COMPOUNDS AS JAK INHIBITORS

The disclosure provides compounds of formula (I), or a pharmaceutically-acceptable salt thereof, wherein the variables are defined in the specification, that are inhibitors of JAK kinases, particularly JAK3. The disclosure also provides pharmaceutical compositions comprising such compounds, and methods of using such compounds to treat gastrointestinal inflammatory diseases.

Discovery of a Pyrimidothiazolodiazepinone as a Potent and Selective Focal Adhesion Kinase (FAK) Inhibitor

Focal adhesion kinase (FAK) is a tyrosine kinase with prominent roles in protein scaffolding, migration, angiogenesis, and anchorage-independent cell survival and is an attractive target for the development of cancer therapeutics. However, current FAK inhibitors display dual kinase inhibition and/or significant activity on several kinases. Although multitargeted activity is at times therapeutically advantageous, such behavior can also lead to toxicity and confound chemical-biology studies. We report a novel series of small molecules based on a tricyclic pyrimidothiazolodiazepinone core that displays both high potency and selectivity for FAK. Structure-activity relationship (SAR) studies explored modifications to the thiazole, diazepinone, and aniline "tail,"which identified lead compound BJG-03-025. BJG-03-025 displays potent biochemical FAK inhibition (IC50 = 20 nM), excellent kinome selectivity, activity in 3D-culture breast and gastric cancer models, and favorable pharmacokinetic properties in mice. BJG-03-025 is a valuable chemical probe for evaluation of FAK-dependent biology.

Pyrimidine-2, 4-diamine compound and preparation method and application thereof

The invention discloses a pyrimidine-2, 4-diamine compound and a preparation method and application thereof, and relates to the technical field of medicinal chemistry, the pyrimidine-2, 4-diamine compound can be used for biological or pharmacological phenomena, cathepsin C participated signal channel conduction research, and evaluation of a novel cathepsin C inhibitor; in addition, through in-vitro and in-vivo anti-cathepsin C activity screening, the results show that the compound has relatively strong inhibitory activity on cathepsin C; through in-vivo anti-neutrophil serine protease activity screening, the result shows that the compound has relatively strong inhibitory activity on neutrophil serine protease; in-vivo anti-inflammatory activity screening results show that the compound has an effective treatment effect on an inflammatory disease model; meanwhile, the toxicity is low, and the application prospect is good.

Discovery and in Vivo Anti-inflammatory Activity Evaluation of a Novel Non-peptidyl Non-covalent Cathepsin C Inhibitor

Cathepsin C (Cat C) participates in inflammation and immune regulation by affecting the activation of neutrophil serine proteases (NSPs). Therefore, cathepsin C is an attractive target for treatment of NSP-related inflammatory diseases. Here, the complete discovery process of the first potent "non-peptidyl non-covalent cathepsin C inhibitor"was described with hit finding, structure optimization, and lead discovery. Starting with hit 14, structure-based optimization and structure-activity relationship study were comprehensively carried out, and lead compound 54 was discovered as a potent drug-like cathepsin C inhibitor both in vivo and in vitro. Also, compound 54 (with cathepsin C Enz IC50 = 57.4 nM) exhibited effective anti-inflammatory activity in an animal model of chronic obstructive pulmonary disease. These results confirmed that the non-peptidyl and non-covalent derivative could be used as an effective cathepsin C inhibitor and encouraged us to continue further drug discovery on the basis of this finding.

DERIVATIVES OF 4-(IMIDAZO[L,2-A]PYRIDIN-3-YL)-N-(PYRIDINYL)PYRIMIDIN- 2-AMINE AS THERAPEUTIC AGENTS

A novel class of heteroaryl compounds for use in the prevention and/or treatment of proliferative diseases and conditions including cancers. The compounds are considered to be capable of inhibiting cell proliferation by inhibiting the activity of FLT3 and its mutant forms and/or other protein kinases such as CDKs. The compounds have the general structure I:

Anti-cancer quinoxaline pyrimidinamine heterocyclic compound as well as preparation method and application thereof

The invention discloses an anti-cancer quinoxaline pyrimidinamine heterocyclic compound and a preparation method and application thereof, the structure of the compound is shown as a formula (S), and X is selected from C (O) or (CH2) n; n is 0 or 1; R1 is selected from hydrogen and C1-C8 alkyl; R2 is selected from hydrogen, C1-C8 alkyl, morpholine ring or-NR5R6, and R5 and R6 are selected from hydrogen and C1-C8 alkyl; R3 is selected from hydrogen, methoxyl and halogen; and R4 is selected from hydrogen, C1-C8 alkyl,-S (O) 2Me and-C (O) OC1-C3. The invention also discloses a preparation method and application of the compound.

CDK6 inhibitor of pyrimidine benzo six-membered ring mother nucleus as well as preparation method and application of CDK6 inhibitor

The invention discloses a CDK6 inhibitor of a pyrimidine benzo six-membered ring mother nucleus and a preparation method and application of the CDK6 inhibitor, the compound structure of the CDK6 inhibitor is shown as a formula (C), and A is selected from O, C (O) or-NR1; R1 is selected from hydrogen or C1-C8 alkyl; B is selected from O or C; X is selected from C, C (O) or-NR2; R2 is selected from hydrogen or C1-C8 alkyl; Y is selected from C (O) or (CH2) n; n is 0 or 1; and Z is selected from hydrogen, C1-C8 alkyl or-C (O) OC1-C3. The invention also discloses a preparation method and application of the compound.

HPK1 ANTAGONISTS AND USES THEREOF

The present invention provides compounds, compositions thereof, and methods of using the same for the inhibition of HPK1, and the treatment of HPK1-mediated disorders.