Methylprenyl and Prenyl Protection for Sulfonamides
摘要:
2-Methylprenyl (MePre) is an efficient protection for sulfonamides. The acidic cleavage of this group leads to volatile by-products and the product can be obtained in high purity without additional purification. MePre group is resistant to Pd/C-catalysed hydrogenolysis at 1 atm, Suzuki-Miyaura reaction, Ni(0) catalysis conditions and oxidising reagents such as NIS and DDQ. The prenyl (Pre) group can also be used to protect sulfonamides in certain cases; however, the substrate scope is limited due to the side product formation.
A one-potthree-componentreaction involving nitroarenes, (hetero)arylboronic acids, and potassium pyrosulfite leading to sulfonamides was described. A broad range of sulfonamides bearing different reactive functional groups were obtained in good to excellent yields through sequential C-S and S-N coupling that does not require metal catalysts.
[EN] 1,3,4-OXADIAZOLE SULFONAMIDE DERIVATIVE COMPOUNDS AS HISTONE DEACETYLASE 6 INHIBITOR, AND THE PHARMACEUTICAL COMPOSITION COMPRISING THE SAME<br/>[FR] COMPOSÉS DÉRIVÉS DE 1,3,4-OXADIAZOLE SULFONAMIDE SERVANT D'INHIBITEUR DE L'HISTONE DÉSACÉTYLASE 6, ET COMPOSITION PHARMACEUTIQUE COMPRENANT CEUX-CI
申请人:CHONG KUN DANG PHARMACEUTICAL CORP
公开号:WO2017018803A1
公开(公告)日:2017-02-02
The present invention relates to novel compounds represented by the formula I having histone deacetylase 6 (HDAC6) inhibitory activity, stereoisomers thereof or pharmaceutically acceptable salts thereof, the use thereof for the preparation of therapeutic medicaments, pharmaceutical compositions containing the same, a method for treating diseases using the composition, and methods for preparing the novel compounds. (I) The novel compounds, stereoisomers thereof or pharmaceutically acceptable salts thereof according to the present invention have histone deacetylase (HDAC) inhibitory activity and are effective for the prevention or treatment of HDAC6-mediated diseases.
[EN] AMINOQUINOLINE DERIVATIVES AS ANTIVIRAL AGENTS<br/>[FR] DÉRIVÉS D'AMINOQUINOLÉINE COMME AGENTS ANTIVIRAUX
申请人:GLAXOSMITHKLINE LLC
公开号:WO2012037108A1
公开(公告)日:2012-03-22
Provided are compounds of Formula (I) and Formula (II) and pharmaceutically acceptable salts thereof, their pharmaceutical compositions, their methods of preparation, and their use for treating viral infections mediated by a member of the Flaviviridae family of viruses such as hepatitis C virus (HCV).
[EN] QUINAZOLINONE DERIVATIVES AS ANTIVIRAL AGENTS<br/>[FR] DÉRIVÉS DE QUINAZOLINONE EN TANT QU'AGENTS ANTIVIRAUX
申请人:GLAXOSMITHKLINE LLC
公开号:WO2012087938A1
公开(公告)日:2012-06-28
Provided are compounds and pharmaceutically acceptable salts thereof, their pharmaceutical compositions, their methods of preparation, and their use for treating viral infections mediated by a member of the Flaviviridae family of viruses such as hepatitis C virus (HCV).