24190-77-0Relevant articles and documents
Preparation method of key intermediate 4-amino-5-halobenzofuran-7-carboxylic acid of 5-HT4 receptor stimulant
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Paragraph 0076-0078; 0083-0084, (2020/03/02)
The invention discloses a preparation method of a key intermediate 4-amino-5-halobenzofuran-7-carboxylic acid of a 1,5-HT4 receptor stimulant, belonging to the field of organic synthesis. According tothe preparation method, para-protected amino-o-hydroxybenzoic acid/hydroxybenzoate, a halogenating reagent and triethyl acetenyl silicon are used as main raw materials, and a three-step reaction is performed to obtain the 4-amino-5-halobenzofuran-7-carboxylic acid. The method has the advantages of simple process operation, short reaction steps, easy separation of the intermediate, total yield ofmore than 51%, usage cheap and easily available raw materials and greatly reduced production cost; and thus, the method has obvious competitive advantages.
AMIDE COMPOUNDS AS 5-HT4 RECEPTOR AGONISTS
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Page/Page column 26-27, (2016/09/22)
The present invention relates to compounds of formula (I), including their stereoisomers and pharmaceutically acceptable salts. This invention also relates to methods of making such compounds and pharmaceutical compositions comprising such compounds. The compounds of this invention are useful in the treatment of various disorders that are related to 5-hydroxytryptamine 4 (5-HT4) receptor.
HETEROARYL COMPOUNDS AS 5-HT4 RECEPTOR LIGANDS
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Page/Page column 11, (2013/04/10)
The present invention relates to novel compounds of formula (I), and their pharmaceutically acceptable salts and compositions containing them. The present invention also relates to a process for the preparation of above said novel compounds, and their pharmaceutically acceptable salts. The compounds of formula (I) are useful in the treatment of various disorders that are related to 5-HT4 receptors.