123040-96-0

Basic information

• Product Name: azasetron hydrochloride
• Synonyms: 2H-1,4-Benzoxazine-8-carboxamide, N-1-azabicyclo[2.2.2]oct-3-yl-6-chloro-3,4-dihydro-4-methyl-3-oxo-, monohydrochloride, (-)-
• CAS NO: 123040-96-0
• Molecular Formula: C17H20 Cl N3 O3 . Cl H
• Molecular Weight: 0
• Mol File: 123040-96-0.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: azasetron hydrochloride(CAS DataBase Reference)
• NIST Chemistry Reference: azasetron hydrochloride(123040-96-0)
• EPA Substance Registry System: azasetron hydrochloride(123040-96-0)

Safety Data

• Hazardous Substances Data: 123040-96-0(Hazardous Substances Data)

Upstream product

• 76883-48-2 quinuclidin-3-amine 
• 123040-50-6 6-chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxazine-8-carboxylic acid chloride 
• 120538-52-5 3-aminoquinuclidine monohydrochloride 
• 141761-83-3 6-chloro-4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-8-carboxylic acid methyl ester 
• 123040-69-7 azasetron 
• 4068-78-4 methyl 5-chloro-2-hydroxybenzoate 
• 5043-79-8 5-chloro-2-hydroxy-3-nitrobenzoic acid methyl ester 
• 5043-81-2 3-amino-5-chloro-2-hydroxybenzoic acid methyl ester 

Relevant articles and documents

Novel preparation method of azasetron hydrochloride

The invention provides a novel preparation method of azasetron hydrochloride, belonging to the technical field of medicine synthesis. According to the method, methyl 5-chlorosalicylate is used as a raw material; after acetic anhydride nitrification and stannous chloride reduction at room temperature, dimethyl carbonate is used as a methylation reagent, and an intermediate V (6-chloro-4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-8-carboxylic acid methyl ester) is synthesized by adopting a one-pot method; the intermediate V is hydrolyzed to obtain 6-chloro-4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-8-formic acid (VI); and the compound reacts with free 3-aminoquinuclidine dihydrochloride for 1 h under the catalysis of TBTU to form a salt so as to obtain I (azasetron hydrochloride). According to the method, the yield of each step is high; aftertreatment is simple; the reaction time of each step is short; conditions are mild; low-toxicity environment-friendly reagents are adopted; energy consumption is reduced; cost is saved; and industrial production is better facilitated.

A hydrochloric acid arab League grips Si Qiong method for the preparation of

The invention discloses a method for preparing azasetron hydrochloride. The method comprises the following steps: hydrolyzing 6-chloro-4-methyl-3-oxo-3,4- dihydro-2H-1,4-benzoxazine-8-carboxylic acid methyl ester which serves as an initial material to prepare carboxylic acid; condensing with 2,2'-dibenzothiazyl disulfide under the action of triethylamine and triethyl phosphite to prepare active ester of carboxyl-2-benzothiazolyl thioester; directly condensing with a 3-aminoquinuclidine alkaline aqueous solution without separation, and salifying to prepare the azasetron hydrochloride. The method can be used for avoiding multiple steps of reaction and pollution to environment, has mild reaction condition and relatively high yield, and is suitable for industrialization.