Microwave-assisted synthesis of pyridylpyrroles from N-acylated amino acids
摘要:
A small library of 3- and 4-pyridyl-substituted pyrroles was prepared from N-acylated amino acids. Nicotinoyl or isonicotinoyl chloride was used for the N-acylation of benzyl esters of amino acids. Debenzylation by palladium-catalyzed hydrogenation gave N-acylated amino acids. Dehydration of the acylated amino acids gave cyclic intermediates, manchnones or aziactones, which were treated in situ with alkynes in 1,3-dipolar cycloadditions. The starting materials were prepared in a parallel fashion, and microwave irradiation was used to facilitate the cycloaddition reactions. The regiochemistry of the cycloaddition was studied. (C) 2009 Elsevier Ltd. All rights reserved.
Microwave-assisted synthesis of pyridylpyrroles from N-acylated amino acids
摘要:
A small library of 3- and 4-pyridyl-substituted pyrroles was prepared from N-acylated amino acids. Nicotinoyl or isonicotinoyl chloride was used for the N-acylation of benzyl esters of amino acids. Debenzylation by palladium-catalyzed hydrogenation gave N-acylated amino acids. Dehydration of the acylated amino acids gave cyclic intermediates, manchnones or aziactones, which were treated in situ with alkynes in 1,3-dipolar cycloadditions. The starting materials were prepared in a parallel fashion, and microwave irradiation was used to facilitate the cycloaddition reactions. The regiochemistry of the cycloaddition was studied. (C) 2009 Elsevier Ltd. All rights reserved.
D-AMPHETAMINE COMPOUNDS, COMPOSITIONS, AND PROCESSES FOR MAKING AND USING THE SAME
申请人:KemPharm, Inc.
公开号:EP4051269A1
公开(公告)日:2022-09-07
[EN] D-AMPHETAMINE COMPOUNDS, COMPOSITIONS, AND PROCESSES FOR MAKING AND USING THE SAME<br/>[FR] COMPOSÉS DE D-AMPHÉTAMINE, COMPOSITIONS ET PROCÉDÉS DE FABRICATION ET D'UTILISATION CORRESPONDANTS
申请人:KEMPHARM INC
公开号:WO2021086426A1
公开(公告)日:2021-05-06
Disclosed are d-amphetamine compounds and compositions comprising at least one organic acid covalently bound to d-amphetamine, a salt thereof, a derivative thereof, or a combination thereof. Methods of making and using the same are also disclosed.
Microwave-assisted synthesis of pyridylpyrroles from N-acylated amino acids
作者:Kirsi Harju、Nenad Manevski、Jari Yli-Kauhaluoma
DOI:10.1016/j.tet.2009.09.094
日期:2009.11
A small library of 3- and 4-pyridyl-substituted pyrroles was prepared from N-acylated amino acids. Nicotinoyl or isonicotinoyl chloride was used for the N-acylation of benzyl esters of amino acids. Debenzylation by palladium-catalyzed hydrogenation gave N-acylated amino acids. Dehydration of the acylated amino acids gave cyclic intermediates, manchnones or aziactones, which were treated in situ with alkynes in 1,3-dipolar cycloadditions. The starting materials were prepared in a parallel fashion, and microwave irradiation was used to facilitate the cycloaddition reactions. The regiochemistry of the cycloaddition was studied. (C) 2009 Elsevier Ltd. All rights reserved.