91219-89-5 Usage
Description
4-Methoxy-3,5-diMethylpyridine 1-Oxide is an organic compound characterized by the presence of a pyridine ring with methyl and methoxy groups at the 3rd and 5th positions, and an oxide group at the 1st position. It is known for its potential applications in the synthesis of various pharmaceutical compounds.
Uses
Used in Pharmaceutical Industry:
4-Methoxy-3,5-diMethylpyridine 1-Oxide is used as a reactant in the preparation of omeprazole (O635000), a medication that inhibits gastric secretion and is used as an anti-ulcerative agent. Its role in the synthesis process contributes to the development of effective treatments for gastrointestinal disorders.
Check Digit Verification of cas no
The CAS Registry Mumber 91219-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,1 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91219-89:
(7*9)+(6*1)+(5*2)+(4*1)+(3*9)+(2*8)+(1*9)=135
135 % 10 = 5
So 91219-89-5 is a valid CAS Registry Number.
91219-89-5Relevant articles and documents
Synthesis method of omeprazole intermediate
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Paragraph 0021; 0024-0029, (2020/07/13)
The invention relates to a synthesis method of an omeprazole intermediate, in particular to a synthesis method of an omeprazole intermediate. According to the technical scheme, the synthesis method ischaracterized in that 3, 5-dimethyl-4-nitropyridine-N-oxide is used as an initial raw material, and 2-chloromethyl-3, 5-dimethyl-4-methoxypyridine is obtained through a methoxylation reaction, a methylation reaction, a rearrangement reaction and a chlorination reaction. The synthesis method of the omeprazole intermediate is high in yield, and the yield can reach 78.9%.
