1381972-89-9

Upstream product

• 7697-27-0 2-bromo-4-methylbenzoic acid 
• 288-36-8 1,2,3-triazole 
• 1829-21-6 4-methyl-2-iodobenzoic acid 
• 288-36-8 1 ,2,3-Triazole 
• 124-38-9 carbon dioxide 

Downstream Products

• 1597519-51-1 (4-methyl-2-[1,2,3]triazol-2-ylphenyl)-{(S)-2-[3-(2-trifluoromethoxyphenyl)-[1,2,4]oxadiazol-5-yl]pyrrolidin-1-yl}methanone 
• 1597527-83-7 (S)-methyl 1-(4-methyl-2-(2H-1,2,3-triazol-2-yl)benzoyl)pyrrolidine-2-carboxylate 

Relevant academic research and scientific papers

Oxadiazole Derivatives as Dual Orexin Receptor Antagonists: Synthesis, Structure–Activity Relationships, and Sleep-Promoting Properties in Rats

The orexin system plays an important role in the regulation of wakefulness. Suvorexant, a dual orexin receptor antagonist (DORA) is approved for the treatment of primary insomnia. Herein, we outline our optimization efforts toward a novel DORA. We started our investigation with rac-[3-(5-chloro-benzooxazol-2-ylamino)piperidin-1-yl]-(5-methyl-2-[1,2,3]triazol-2-ylphenyl)methanone (3), a structural hybrid of suvorexant and a piperidine-containing DORA. During the optimization, we resolved liabilities such as chemical instability, CYP3A4 inhibition, and low brain penetration potential. Furthermore, structural modification of the piperidine scaffold was essential to improve potency at the orexin 2 receptor. This work led to the identification of (5-methoxy-4-methyl-2-[1,2,3]triazol-2-ylphenyl)-{(S)-2-[5-(2-trifluoromethoxyphenyl)-[1,2,4]oxadiazol-3-yl]pyrrolidin-1-yl}methanone (51), a potent, brain-penetrating DORA with in vivo efficacy similar to that of suvorexant in rats.

2-AZABICYCLO[3.1.1] DERIVATIVES AS ANTAGONISTS OF THE OREXIN-1 AND OREXIN-2 RECEPTORS

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.

Highly Selective Synthesis of 2-(2 H-1,2,3-Triazol-2-yl)benzoic Acids

A selective and scalable synthesis of 2-(2H-1,2,3-triazol-2-yl)benzoic acid starting from 1-fluoro-2-nitrobenzene derivatives is presented. The four-step synthesis introduces the triazole at the start via N2-arylation of 4,5-dibromo-2H-1,2,3-triazole. A sequence of consecutive functional group transformations, namely hydrogenation, Sandmeyer iodination, and Grignard carboxylation, provides the target molecules in a reliable and scalable manner. The usefulness of this method is demonstrated by the synthesis of di-or tri(2H-1,2,3-triazol-2-yl)benzene derivatives, which are difficult to produce by other methods.

Highly selective synthesis of 2-(2H-1,2,3-Triazol-2-yl)benzoic acids

A selective and scalable synthesis of 2-(2H-1,2,3-triazol-2-yl)benzoic acid starting from 1-fluoro-2-nitrobenzene derivatives is presented. The four-step synthesis introduces the triazole at the start via N2-arylation of 4,5-dibromo-2H-1,2,3- triazole. A sequence of consecutive functional group transformations, namely hydrogenation, Sandmeyer iodination, and Grignard carboxylation, provides the target molecules in a reliable and scalable manner. The usefulness of this method is demonstrated by the synthesis of di- or tri(2H-1,2,3-triazol-2-yl)benzene derivatives, which are difficult to produce by other methods.

PREPARATION OF 2-([1,2,3]TRIAZOL-2-YL)-BENZOIC ACID DERIVATIVES

The present invention relates to a process for the preparation of particular 2-(2H-[1,2,3]triazol-2-yl)-benzoic acid derivatives of formula (I), to certain crystalline forms of potassium salts of said 2-(2H-[1,2,3]triazol-2-yl)-benzoic acid derivatives of formula (IK), to certain crystalline forms of said 2-(2H-[1,2,3]triazol-2-yl)-benzoic acid derivatives of formula (I), and to their use in the preparation of pharmaceuticals such as (S)-(2-(5-chloro-4-methyl-1H-benzo[d]imidazol-2-yl)-2-methylpyrrolidin-1-yl)-(5-methoxy-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone.

SUBSTITUTED 7-AZABICYCLES AND THEIR USE AS OREXIN RECEPTOR MODULATORS

The present invention is directed to compounds of Formula I: wherein ring A is phenyl, naphihalenyl, pyridyl, quinolinyl, isoquinolinyl, imidazopyridyl, furanyi, tlisazolyl, isoxazolvl, pyrazolyl, imidazothiazolyi, benzimidazolyl, or indazolyi; R1 is H, alky], aikoxy, hydroxyalkylene, OH, halo, phenyl, triazolyl, oxazolyl, isoxazofyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazmyl, piperazinyl, pyrazolyl, oxadiazolvl, pyrrolidinyl, thiophenyi, morpholinyl, or dialkyiamino; R2 is H, alkyl, aikoxy, hydroxyalkylene, or halo; Z is NH, N-alkyl, or O; R5 is pyridyl, pyrimidinyl, pyrazinyl, pyridazmyl, qumazolinyi, quinoxalinyl, pyrazolyl, benzoxazolyl, imidazopyrazinyl, triazolopyrazinyl, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, aikoxy, or halo; and n is 0 or 1, Methods of making the compounds of Formula 1 are also described. The invention also relates to pharmaceutical compositions comprising compounds of Formula I. Methods of using the compounds of the invention are also within the scope of the invention.

2-(1,2,3-TRIAZOL-2-YL)BENZAMIDE AND 3-(1,2,3-TRIAZOL-2-YL)PICOLINAMIDE DERIVATIVES AS OREXIN RECEPTOR ANTAGONISTS

The present invention relates to 2-(1,2,3-triazol-2-yl)benzamide and 3-(1,2,3-triazol-2-yl)picolinamide derivatives of formula (I) wherein Ar1, Q, and R1 to R5 are as described in the description, to their preparation, to

OREXIN RECEPTOR ANTAGONISTS WHICH ARE [ORTHO BI (HETERO )ARYL]-[2-(META BI (HETERO )ARYL)-PYRROLIDIN-1-YL]-METHANONE DERIVATIVES

The present invention relates to [ortho bi-(hetero-)aryl]-[2-(meta bi-(hetero-)aryl)-pyrrolidin-1-yl]- methanone derivatives of formula (I) wherein R, and the rings A1 A2 and A3 are as described in the description, to pharmaceutically acceptable salts thereof, to their preparation, to pharmaceutical compositions containing one or more compounds of formula (I), and to their use as pharmaceuticals, especially to their use as orexin receptor antagonists.

AZETIDINE AMIDE DERIVATIVES AS OREXIN RECEPTOR ANTAGONISTS

The present invention relates to azetidine amide derivatives derivatives of formula (I) wherein rings A1 A2 and A3 are as described in the description, to pharmaceutically acceptable salts thereof, to their preparation, to

3,7-DIAZABICYCLO[3.3.1]NONANE AND 9-OXA-3,7-DIAZABICYCLO[3.3.1]NONANE DERIVATIVES

The present invention relates to 3,7-diazabicyclo[3.3.1]nonane and 9-oxa-3,7- diazabicyclo[3.3.1 ]nonane derivatives of formula (I) wherein Ar1 and Ar2 are as described in the description, to their preparation, to pharmaceutically acceptable salts thereof, and to their use as pharmaceuticals, to pharmaceutical compositions containing one or more compounds of formula (I), and especially to their use as orexin receptor antagonists.