A Scalable Synthesis of MN-447, an Antagonist for Integrins α<sub>v</sub>β<sub>3</sub> and α<sub>IIb</sub>β<sub>3</sub>
作者:Minoru Ishikawa、Masaki Tsushima、Dai Kubota、Yumiko Yanagisawa、Yukiko Hiraiwa、Yasuo Kojima、Keiichi Ajito、Naomichi Anzai
DOI:10.1021/op800073z
日期:2008.7.1
(2S)-Benzenesulfonylamino-3-[3-methoxy-4-4-(1,4,5,6-tetrahydro-pyrimidin-2-ylamino)piperidin-1-yl}benzoylamino]propionic acid, MN-447, is a potent antagonist of the integrins alpha(v)beta(3) and alpha(IIb)beta(3)-Herein, we report a novel synthetic protocol that produces MN-447 in an overall yield of 45%. This protocol, when compared with the original synthetic route for MN-447, is more cost-effective, requires fewer steps, does not require chromatographic purification of intermediates and MN-447, and increases the overall yield by 35%. This report focuses on the synthetic strategies that were developed for this protocol. Now, the large quantities of MN-447 that are needed for preclinical and toxicological studies can be readily obtained.
(2S)-对甲苯磺酰氨基-3-[3-甲氧基-4-4-(四氢嘧啶-2-基氨基)哌啶-1-基}苯甲酰氨基]丙二酸,即MN-447,是一种有效的整合素αvβ3和αIIbβ3拮抗剂。本文中,我们报告了一种新型的合成方案,该方案使MN-447的总体产率达到45%。与MN-447原有的合成路线相比,新方案更具成本效益,步骤更少,不需要对中间体和MN-447进行色谱纯化,并将总体产率提高了35%。本报告重点介绍了为该方案开发的合成策略。如今,大量用于临床前和毒理学研究所需的MN-447可以轻松获得。