156428-85-2

Usage

Uses

Used in Pharmaceutical Industry:
3-Methoxy-4-(4-Methylpiperazin-1-yl)aniline is used as a key intermediate in the synthesis of various drugs, including antipsychotics and antihistamines. Its unique chemical structure allows for the development of medications that can effectively target specific receptors or pathways in the body, contributing to the treatment of mental health disorders and allergies.
Used in Agrochemical Industry:
In the agrochemical sector, 3-Methoxy-4-(4-Methylpiperazin-1-yl)aniline is utilized in the manufacturing of pesticides and herbicides. Its chemical properties make it suitable for the creation of compounds that can protect crops from pests and unwanted plant growth, thereby enhancing agricultural productivity and crop yields.
Used in Organic Synthesis:
3-Methoxy-4-(4-Methylpiperazin-1-yl)aniline serves as a versatile building block in organic synthesis, enabling the creation of a wide range of chemical compounds with diverse applications. Its functional groups facilitate various chemical reactions, making it an essential component in the development of new materials and substances across different industries.

InChI:InChI=1/C12H19N3O/c1-14-5-7-15(8-6-14)11-4-3-10(13)9-12(11)16-2/h3-4,9H,5-8,13H2,1-2H3

Upstream product

• 109-01-3 1-methyl-piperazine 
• 77337-82-7 1-bromo-2-methoxy-4-nitrobenzene 
• 454-16-0 1-fluoro-2-methoxy-4-nitrobenzene 
• 1009-36-5 2-chloro-5-nitroanisole 
• 209482-01-9 1–(2-methoxy-4-nitrophenyl)-4-methylpiperazine 

Downstream Products

• 1126430-84-9 4-{2-(ethylamino)-4-[3-methyl-5-(methyloxy)phenyl]-1,3-thiazol-5-yl}-N-[3-(methyloxy)-4-(4-methyl-1-piperazinyl)phenyl]-2-pyrimidinamine 
• 1404437-49-5 N-(3-methoxy-4-(4-methylpiperazin-1-yl)phenyl)-1-(4-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-6-amine 
• 1363160-99-9 N-(3-(7-(3-methoxy-4-(4-methylpiperazin-1-yl)phenylamino)-3-methyl-2-oxo-3,4-dihydropyrimido[4,5-d]pyrimidin-1(2H)-yl)-phenyl)acrylamide 
• 1453207-83-4 5-[(2,6-difluoro-3,5-dimethoxyphenyl)ethynyl]-N-[3-methoxy-4-(4-methylpiperazin-1-yl)phenyl]pyrimidin-2-amine 
• 1453207-60-7 5-[2-(2,6-difluoro-3,5-dimethoxyphenyl)ethyl]-N-[3-methoxy-4-(4-methylpiperazin-1-yl)phenyl]pyrimidin-2-amine 

Relevant academic research and scientific papers

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.

The synthesis and bioactivity of pyrrolo[2,3-d]pyrimidine derivatives as tyrosine kinase inhibitors for NSCLC cells with EGFR mutations

EGFR mutations are an ongoing challenge in the treatment of NSCLC, and demand continuous updating of EGFR TKI drug candidates. Pyrrolopyrimidines are one group of versatile scaffolds suitable for tailored drug development. However not many precedents of this type of pharmacophore have been investigated in the realm of third generation of covalent EGFR-TKIs. Herein, a series of pyrrolo[2,3-d]pyrimidine derivatives able to block mutant EGFR activity in a covalent manner were synthesized, through optimized Buchwald-Hartwig C–N cross coupling reactions. Their preliminary bioactivity and corresponding inhibitory mechanistic pathways were investigated at molecular and cellular levels. Several compounds exhibited increased biological activity and enhanced selectivity compared to the control compound. Notably, compound 12i selectively inhibits HCC827 cells harboring the EGFR activating mutation with up to 493-fold increased efficacy compared to in normal HBE cells. Augmented selectivity was also confirmed by kinase enzymatic assay, with the test compound selectively inhibiting the T790 M activating mutant EGFRs (IC50 values of 0.21 nM) with up to 104-fold potency compared to the wild-type EGFR (IC50 values of 22 nM). Theoretical simulations provide structural evidence of selective kinase inhibitory activity. Thus, this series of pyrrolo[2,3-d]pyrimidine derivatives could serve as a starting point for the development of new EGFR-TKIs.

COMPOUNDS AND THEIR USES AS SPLEEN TYROSINE KINASE INHIBITORS

Provided are compounds of Formula (I) which can be used as Syk inhibitors and potently as therapeutic agents against diseases mediated by Syk.

Pyrrolo [2, 3-d] pyrimidine derivative targeting EGFR mutation as well as preparation method and application of pyrrolo [2, 3-d] pyrimidine derivative

The invention provides a pyrrolo [2, 3-d] pyrimidine derivative targeting EGFR mutation as well as a preparation method and application thereof, and belongs to the field of chemical medicines. The derivative is a compound shown as a formula I, or a salt t

WEE1 inhibitors as well as preparation and application thereof

The invention relates to WEE1 inhibitors as well as preparation and application thereof. The present invention relates to compounds of formula (I), or pharmaceutically acceptable salts, solvates, polymorphs or isomers thereof, and their use in the preparation of medicaments for the treatment of diseases associated with WEE1 activity.

Hydrazone-based derivative, intermediate, preparation method, pharmaceutical composition and applications thereof

The present invention discloses a hydrazone-based derivative (I), an intermediate, a preparation method, a pharmaceutical composition and applications thereof, wherein the hydrazone-based compound hasgood inhibitory effect on the ubiquitination activity of cIAP1 protein, can promote the degradation of oncogenic protein c-MYC at a cellular level so as to inhibit the growth of tumor cells, and hasbroad drug development prospects.

JAK2 AND ALK2 INHIBITORS AND METHODS FOR THEIR USE

Compounds having activity as inhibitors of ALK2 kinase and/or JAK2 kinase are disclosed. The compounds have the following structure (I): [FORMULA SHOULD BE INSERTED HERE] including stereoisomers, tautomers, pharmaceutically acceptable salts and prodrugs thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, X, z and A are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.

A potent and selective quinoxalinone-based STK33 inhibitor does not show synthetic lethality in KRAS-dependent cells

The KRAS oncogene is found in up to 30% of all human tumors. In 2009, RNAi experiments revealed that lowering mRNA levels of a transcript encoding the serine/threonine kinase STK33 was selectively toxic to KRAS-dependent cancer cell lines, suggesting that small-molecule inhibitors of STK33 might selectively target KRAS-dependent cancers. To test this hypothesis, we initiated a high-throughput screen using compounds in the Molecular Libraries Small Molecule Repository (MLSMR). Several hits were identified, and one of these, a quinoxalinone derivative, was optimized. Extensive SAR studies were performed and led to the chemical probe ML281 that showed low nanomolar inhibition of purified recombinant STK33 and a distinct selectivity profile as compared to other STK33 inhibitors that were reported in the course of these studies. Even at the highest concentration tested (10 μM), ML281 had no effect on the viability of KRAS-dependent cancer cells. These results are consistent with other recent reports using small-molecule STK33 inhibitors. Small molecules having different chemical structures and kinase-selectivity profiles are needed to fully understand the role of STK33 in KRAS-dependent cancers. In this regard, ML281 is a valuable addition to small-molecule probes of STK33.

Structure-based design of novel 2-amino-6-phenyl-pyrimido[5′, 4′:5,6]pyrimido[1,2-a]benzimidazol-5(6H)-ones as potent and orally active inhibitors of lymphocyte specific kinase (Lck): Synthesis, SAR, and in vivo anti-inflammatory activity

Lck, or lymphocyte specific kinase, is a cytoplasmic tyrosine kinase of the Src family expressed in T-cells and NK cells. Genetic evidence from knockout mice and human mutations demonstrates that Lck kinase activity is critical for T-cell receptor-mediated signaling, leading to normal T-cell development and activation. A small molecule inhibitor of Lck is expected to be useful in the treatment of T-cell-mediated autoimmune and inflammatory disorders and/or organ transplant rejection. In this paper, we describe the structure-guided design, synthesis, structure-activity relationships, and pharmacological characterization of 2-amino-6-phenylpyrimido[5′,4′:5,6]pyrimido[1,2- a]benzimidazol-5(6H)-ones, a new class of compounds that are potent inhibitors of Lck. The most promising compound of this series, 6-(2,6-dimethylphenyl)-2- ((4-(4-methyl-1-piperazinyl)phenyl)amino)pyrimido[5′,4′:5,6] pyrimido-[1,2-a]benzimidazol-5(6H)-one (25), exhibits potent inhibition of Lck kinase activity. This activity translates into inhibition of in vitro cell-based assays and in vivo models of T-cell activation and arthritis, respectively.

Novel 2-aminopyrimidine carbamates as potent and orally active inhibitors of Lck: Synthesis, SAR, and in vivo antiinflammatory activity

The lymphocyte-specific kinase (Lck) is a cytoplasmic tyrosine kinase of the Src family expressed in T cells and NK cells. Genetic evidence in both mice and humans demonstrates that Lck kinase activity is critical for signaling mediated by the T cell receptor (TCR), which leads to normal T cell development and activation. A small molecule inhibitor of Lck is expected to be useful in the treatment of T cell-mediated autoimmune and inflammatory disorders and/or organ transplant rejection. In this paper, we describe the synthesis, structure-activity relationships, and pharmacological characterization of 2-aminopyrimidine carbamates, a new class of compounds with potent and selective inhibition of Lck. The most promising compound of this series, 2,6-dimethylphenyl 2-((3,5-bis(methyloxy)-4-((3-(4-methyl-1-piperazinyl)propyl)- oxy)phenyl)amino)-4-pyrimidinyl(2,4-bis(methyloxy)phenyl)carbamate (43) exhibits good activity when evaluated in in vitro assays and in an in vivo model of T cell activation.