Synthesis of racemic and enantiopure 3,4-methanonipecotic acid
摘要:
The synthesis of both racemic and enantiomerically pure (1R,6S)-3,4-methanonipecotic acid, a cyclopropane-containing 8-amino acid, which is a valuable building block for drug discovery, is described. The synthetic scheme commences from natural (S)-malic acid and allows for the preparation of the title compound in 12 steps in 28% overall yield. A novel approach to the racemic 3,4-methanonipecotic acid, which relies on a Simmons-Smith cyclopropanation as the key step, was also developed. In this case, the product was obtained in 8 steps and 38% total yield. (C) 2015 Published by Elsevier Ltd.
Synthesis of racemic and enantiopure 3,4-methanonipecotic acid
摘要:
The synthesis of both racemic and enantiomerically pure (1R,6S)-3,4-methanonipecotic acid, a cyclopropane-containing 8-amino acid, which is a valuable building block for drug discovery, is described. The synthetic scheme commences from natural (S)-malic acid and allows for the preparation of the title compound in 12 steps in 28% overall yield. A novel approach to the racemic 3,4-methanonipecotic acid, which relies on a Simmons-Smith cyclopropanation as the key step, was also developed. In this case, the product was obtained in 8 steps and 38% total yield. (C) 2015 Published by Elsevier Ltd.
Heterocyclic analgesic compounds and methods of use thereof
申请人:——
公开号:US20020016337A1
公开(公告)日:2002-02-07
One aspect of the present invention relates to novel heterocyclic compounds. A second aspect of the present invention relates to the use of the novel heterocyclic compounds as ligands for various cellular receptors, including opiate receptors, other G-protein-coupled receptors, and ion channels. An additional aspect of the present invention relates to the use of the novel heterocyclic compounds as analgesics.
BICYCLIC-FUSED HETEROARYL OR ARYL COMPOUNDS AND THEIR USE AS IRAK4 INHIBITORS
申请人:Pfizer Inc.
公开号:EP3536685A1
公开(公告)日:2019-09-11
Compounds, tautomers and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula Ia,
as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment of autoimmune and inflammatory diseases associated with Interleukin-1 Receptor Associated Kinase (IRAK), methods of synthesis, and intermediates are also disclosed.
本发明公开了化合物、同系物和药学上可接受的盐,其中化合物具有式 Ia 的结构、
的结构。还公开了相应的药物组合物、与白细胞介素-1受体相关激酶(IRAK)相关的自身免疫性和炎症性疾病的治疗方法、合成方法和中间体。