Enantioselective hydrolysis of 1-arylallyl acetates catalyzed by Candida antarctica lipase
摘要:
(R)-1-Arylallyl alcohols were obtained with excellent enantioselectivities via kinetic resolution of the corresponding acetates using immobilized Candida antarctica lipase. The scope and limitations of this reaction were investigated. The best results are obtained using the water/acetonitrile solvent system, and the reaction tolerates a variety of aryl and heteroaryl substituents. (C) 2008 Elsevier Ltd. All rights reserved.
Total synthesis of cyclomarins A, C and D, marine cyclic peptides with interesting anti-tuberculosis and anti-malaria activities
作者:Philipp Barbie、Uli Kazmaier
DOI:10.1039/c6ob00800c
日期:——
Cyclomarins are cyclic heptapeptides containing four unusual amino acids. New synthetic protocols toward their synthesis have been developed, leading to the synthesis and biological evaluation of three natural occurring cyclomarins. Interestingly, cyclomarins address two completely different targets: Clp C1, a subunit of the caseinolyticprotease of Mycobacteriumtuberculosis (MTB), as well as PfAp3Ase
环豆素是含有四个不同氨基酸的环状七肽。已经开发出用于其合成的新的合成方案,从而导致了三种天然存在的环烷的合成和生物学评估。有趣的是,水手素针对两个完全不同的靶标:Clp C1,结核分枝杆菌(MTB)的酪蛋白水解蛋白酶的亚基,以及恶性疟原虫的PfAp 3 Ase 。因此,对于开发抗结核和疟疾药物而言,水手素是有趣的先导结构。