[Problem]
To provide a compound having a 15-PGDH inhibitory effect.
[Solution]
A compound represented by general formula (1) or a pharmacologically acceptable salt thereof.
An efficient one-pot synthesis of annulated pyridines utilising a directed ortho-metallation/transmetallation approach
作者:Antony J. Davies、Karel M.J. Brands、Cameron J. Cowden、Ulf-H. Dolling、David R. Lieberman
DOI:10.1016/j.tetlet.2003.12.096
日期:2004.2
The ortho-alkylation of Boc-protected aminopyridines with alpha,omega-dihaloalkanes followed by in situ cyclisation, resulted in the corresponding annulated pyridine derivatives in good to excellent yields. The effect of the alkylating and chelating agents, the transmetallation additives and the directing group was examined. (C) 2004 Elsevier Ltd. All rights reserved.
[EN] 15-PGDH INHIBITOR<br/>[FR] INHIBITEUR DE 15-PGDH<br/>[JA] 15-PGDH阻害薬
Practical Asymmetric Synthesis of a Non-Peptidic α<sub>v</sub>β<sub>3</sub> Antagonist
作者:Stephen P. Keen、Cameron J. Cowden、Brian C. Bishop、Karel M. J. Brands、Antony J. Davies、Ulf H. Dolling、David R. Lieberman、Gavin W. Stewart
DOI:10.1021/jo048082n
日期:2005.3.1
development of a practical and highly convergent synthesis of an αvβ3 antagonist is described. The two key fragments present in this compound, a tetrahydropyrido[2,3-b]azepine ring system and a chiral 3-aryl-5-oxopentanoic acid, were constructed independently and then coupled at a late stage using a Wittig reaction. The pyridoazepine moiety was prepared from N-Boc 6-chloro-2-aminopyridine via directed
的α的一个实际和高度会聚合成的发展v β 3拮抗剂进行说明。该化合物中存在的两个关键片段,一个四氢吡啶并[2,3- b ]氮杂ring环体系和一个手性的3-芳基-5-氧代戊酸,是独立构建的,然后在后期使用Wittig反应偶联。由N -Boc 6-氯-2-氨基吡啶经定向邻位制备吡啶并ze庚因部分-金属化/烷基化,然后原位环化。然后使用Suzuki反应连接Wittig偶联所需的丙醛侧链。偶联配偶体是由3-取代的戊二酸酐的不对称甲醇水解,然后将酸部分精制为必需的β-酮磷烷制备的。使用该途径,制备了千克量的所需候选药物。