1428476-86-1

Basic information

• Product Name: (S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate
• Synonyms: (S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate
• CAS NO: 1428476-86-1
• Molecular Formula: C26H30Cl2FN5O3
• Molecular Weight: 550.4525032
• Mol File: 1428476-86-1.mol
• Article Data: 27

Chemical Properties

• Appearance: /
• CAS DataBase Reference: (S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: (S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate(1428476-86-1)
• EPA Substance Registry System: (S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate(1428476-86-1)

Safety Data

• Hazardous Substances Data: 1428476-86-1(Hazardous Substances Data)

Usage

Description

(S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate is a complex organic compound characterized by a piperidine core with a pyrazole ring, a pyridine ring, and a carboxylate group. It also features a tert-butyl group and an amine group, along with chloro and fluoro substituents. The (S)-configuration indicates a specific stereochemistry, which is crucial for its reactivity and potential interactions with biological targets. (S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate's structure suggests it may be relevant for pharmaceutical or agrochemical research due to the presence of common features in bioactive molecules.

Uses

Used in Pharmaceutical Research:
(S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate is used as a potential candidate in pharmaceutical research for its structural features commonly found in bioactive molecules. (S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate's unique arrangement of functional groups and stereochemistry may allow it to interact with specific biological targets, making it a promising candidate for the development of new drugs.
Used in Agrochemical Research:
In the agrochemical industry, (S)-tert-Butyl 4-(4-(6-aMino-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate may be utilized as a starting material or a lead compound in the development of new agrochemicals. Its structural complexity and diversity of functional groups could be exploited to create molecules with specific activities, such as pesticides or herbicides, that target agricultural pests or weeds.

Upstream product

• 877399-50-3 4-(4-bromo-1H-pyrazol-1-yl)piperidine-1-carboxylic acid tert-butyl ester 
• 877399-49-0 3-[(R)-1-(2,6-dichloro-3-fluoro-phenyl)-ethoxy]-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridin-2-ylamine 
• 877397-65-4 (S)‐1‐(2,6-dichloro-3-fluorophenyl)ethanol 
• 1448326-33-7 5-bromo-3-[1 (R)-(2,6-dichloro-3-fluoro-phenyl)-ethoxy]-pyridin-2-ylamine 
• 877399-74-1 tert-butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate 
• 15128-82-2 3-hydroxy-2-nitropyridine 
• 877399-73-0 tert-butyl 4-(4-iodo-1H-pyrazol-1-yl)piperidine-1-carboxylate 
• 877397-70-1 (R)-3-(1-(2,6-dichloro-3-fluorophenyl)ethyoxyl)-2-nitropyridine 
• 877397-71-2 (R)-3-(1-(2,6-dichloro-3-fluorophenyl)ethyoxyl)-2-aminopyridine 
• 109384-19-2 t-butyl 4-hydroxy piperidine-1-carboxylate 
• 141699-59-4 1-(tert-butoxycarbonyl)piperidin-4-yl methanesulfonate 
• 877399-47-8 (R)-5-bromo-N,N-bis-(tert-butoxycarbonyl)-3-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridine-2-amine 
• 877399-48-9 (R)-N,N-bis(tert-butoxycarbonyl)-3-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine 
• 756520-66-8 1-(2,6-dichloro-3-fluorophenyl)ethanol 

Downstream Products

• 877399-52-5 crizotinib 
• 1428476-71-4 N-(3-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)-5-(1-(1-ethylpiperidin-4-yl)-1H-pyrazol-4-yl)pyridin-2-yl)acetamide 
• 1428476-72-5 3-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)-N-ethyl-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)pyridin-2-amine 
• 1428476-85-0 tert-butyl 4-(4-(5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)-6-(ethylamino)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate 
• 1428476-87-2 tert-butyl 4-(4-(6-acetamido-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate 
• 1418026-91-1 (R)-tert-butyl 4-(4-(6-acetamido-5-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)pyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate 
• 1418026-92-2 (R)-N-(3-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)-5-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)pyridin-2-yl)acetamide 

Relevant articles and documents

Synthesis of a Crizotinib Intermediate via Highly Efficient Catalytic Hydrogenation in Continuous Flow

Kilogram-scale highly selective catalytic hydrogenation of the aryl nitro group in the intermediate of crizotinib has been developed, which adopted continuous-flow technology with prepassivated Raney Ni as a catalyst at room temperature. According to the reaction condition optimization, side reactions such as dehalogenation, debenzylation, and reduction of other unsaturated functional groups were inhibited eminently. Moreover, catalytic hydrogenation of (R)-3-(1-(2,6-dichloro-3-fluorophenyl)ethoxy)-2-nitropyridine (compound I) afforded the desired product (R)-3-[1-(2,6-dichloro-3-fluorophenyl)ethoxy]pyridin-2-amine (compound II) with high selectivity (99.9%) and high conversion (99.5%). Finally, high-quality crizotinib was synthesized from intermediate II.

Development and biological investigations of hypoxia-sensitive prodrugs of the tyrosine kinase inhibitor crizotinib

Despite the huge success of tyrosine kinase inhibitors as anticancer agents, severe side effects are a major problem. In order to overcome this drawback, the first hypoxia-activatable 2-nitroimidazole-based prodrugs of the clinically approved ALK and c-MET inhibitor crizotinib were developed. The 2-aminopyridine functionality of crizotinib (essential for target kinase binding) was considered as ideal position for prodrug derivatization. Consequently, two different prodrugs were synthesized with the nitroimidazole unit attached to crizotinib either via carbamoylation (A) or alkylation (B) of the 2-aminopyridine moiety. The successful prodrug design could be proven by docking studies and a dramatically reduced ALK and c-MET kinase-inhibitory potential. Furthermore, the prodrugs showed high stability in serum and release of crizotinib in an enzymatic nitroreductase-based cleavage assay was observed for prodrug A. The in vitro activity of both prodrugs was investigated against ALK- and c-MET-dependent or –overexpressing cells, revealing a distinct hypoxia-dependent activation for prodrug A. Finally, inhibition of c-MET phosphorylation and cell proliferation could also be proven in vivo. In summary of the theoretical, chemical and biological studies, prodrug derivatization of the 2-aminopyridine position can be considered as a promising strategy to reduce the side effects and improve the anticancer activity of crizotinib.

Reactive Oxygen Species (ROS)-sensitive prodrugs of the tyrosine kinase inhibitor crizotinib

Tyrosine kinase inhibitors revolutionized cancer therapy but still evoke strong adverse effects that can dramatically reduce patients' quality of life. One possibility to enhance drug safety is the exploitation of prodrug strategies to selectively activate a drug inside the tumor tissue. In this study, we designed a prodrug strategy for the approved c-MET, ALK, and ROS1 tyrosine kinase inhibitor crizotinib. Therefore, a boronic-acid trigger moiety was attached to the 2-aminopyridine group of crizotinib, which is a crucial position for target kinase binding. The influence of the modifications on the c-MET- and ALK-binding ability was investigated by docking studies, and the strongly reduced interactions could be confirmed by cell-free kinase inhibition assay. Furthermore, the newly synthesized compounds were tested for their activation behavior with H2O2 and their stability in cell culture medium and serum. Finally, the biological activity of the prodrugs was investigated in three cancer cell lines and revealed a good correlation between activity and intrinsic H2O2 levels of the cells for prodrug A. Furthermore, the activity of this prodrug was distinctly reduced in a non-malignant, c-MET expressing human lung fibroblast (HLF) cell line.