80223-79-6Relevant articles and documents
Method of resolving tamsulosin enantiomer
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Paragraph 0152; 0153; 0155, (2017/08/29)
The invention relates to a method of resolving tamsulosin enantiomer, and in particular, relates to a method of resolving tamsulosin, represented as the formula (I), into an R-enantiomer and an S-enantiomer. The method includes the steps of: (a) dissolving a solid mixture of (R)-tamsulosin free alkali and (S)-tamsulosin free alkali in a solvent and performing a reaction to the free alkalis with camphor-10-sulfonic acid to form a solution containing a pair of diastereomeric camphor-10-sulfonates of tamsulosin, and then preferentially precipitating one diastereomeric camphor-10-sulfonate of the tamsulosin from the solution containing a pair of the diastereomeric camphor-10-sulfonates of tamsulosin, thereby forming a precipitate, in which one diastereomer is enriched, and a solute, in which the other one diastereomer is enriched; and (b) from one of the precipitate and the solute, releasing tamsulosin free alkali to obtain optical-rotation-enriched tamsulosin free alkali. The method has excellent technical performance.
2-Alkyloxazoles as potent and selective PI4KIIIβ inhibitors demonstrating inhibition of HCV replication
Keaney, Erin P.,Connolly, Michael,Dobler, Markus,Karki, Rajeshri,Honda, Ayako,Sokup, Samantha,Karur, Subramanian,Britt, Shawn,Patnaik, Anup,Raman, Prakash,Hamann, Lawrence G.,Wiedmann, Brigitte,LaMarche, Matthew J.
, p. 3714 - 3718 (2015/03/14)
Synthesis and SAR of 2-alkyloxazoles as class III phosphatidylinositol-4-kinase beta (PI4KIIIβ) inhibitors is described. These compounds demonstrate that inhibition of PI4KIIIb leads to potent inhibition of HCV replication as observed in genotype (GT) 1a
A METHOD OF PREPARATION OF (R)-(-)-5(2-AMINOPROPYL)-2-METHOXYBENZENESULFONAMIDE
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Page/Page column 9, (2008/06/13)
A method of preparation of (R)-(-)-5-(2-aminopropyl)-2-methoxybenzenesulfonamide of formula I and its use for production tamsulosin. A protective group is introduced to N-[(1R)-2-(4-methoxyphenyl)-1-methylethyl]-N- [(1 R)-1-phenylethyl)]amine and the resulting amide of formula IX is chlorosulfonated and the resulting sulfochloride is converted to a sulfonamide of formula X, from which the compound of formula I is obtained by hydrogenation.