First hydroxamate inhibitors for carboxypeptidase A. N-Acyl-N-hydroxy-β-phenylalanines
摘要:
A series of N-acyl-N-hydroxy-beta-Phe were designed, synthesized, and shown to have potent inhibitory activity for carboxypeptidase A (CPA). They are the first examples of CPA inhibitors having a hydroxamate functionality. (C) 1999 Elsevier Science Ltd. All rights reserved.
quadrant bisphosphine ligand, di-1-adamantylphosphino(tert-butylmethylphosphino)methane, named BulkyP*, has been synthesized via a convergent short pathway with chromatography-free procedures. The ligand is a crystalline solid and can be readily handled in air. Its rhodium(I) complex exhibits very high enantioselectivities and catalytic activities in the asymmetric hydrogenation of functionalized alkenes
for the synthesis of a valuable class of α‐aminomethylacrylates via the Baylis–Hillman reaction of different aldehydes with methyl acrylate followed by acetylation of the resulting allylic alcohols and SN2′‐type amination of the allylic acetates. Asymmetric hydrogenation of these diverse olefinic precursors using rhodium(Et‐Duphos) catalysts provided the corresponding β2‐amino acid derivatives with excellent
通过一种新的策略,通过不同醛类的Baylis-Hillman反应与丙烯酸甲酯的合成,然后合成的烯丙醇的乙酰化和乙酸烯丙酯的S N 2'型胺化反应,合成了有价值的α-氨基甲基丙烯酸酯类。使用铑这些不同的烯属前体的不对称氢化(ET-DUPHOS)催化剂提供了相应的β 2个具有优异的对映选择性的α-氨基酸衍生物和非常高的反应性(高达> 99.5%ee值和S / C = 10,000)。的(第一加氢Ž) -构型底物,研究了β的合成2氨基酸衍生物。对于该反应,还公开了底物几何形状和位阻对反应性和对映选择性的高影响。这个协议提供了用于光学纯β制备高度实用的,容易的和可扩展的方法2 -氨基酸和它们的衍生物在温和的反应条件下进行。
First hydroxamate inhibitors for carboxypeptidase A. N-Acyl-N-hydroxy-β-phenylalanines
作者:Dong H. Kim、Yonghao Jin
DOI:10.1016/s0960-894x(99)00055-4
日期:1999.3
A series of N-acyl-N-hydroxy-beta-Phe were designed, synthesized, and shown to have potent inhibitory activity for carboxypeptidase A (CPA). They are the first examples of CPA inhibitors having a hydroxamate functionality. (C) 1999 Elsevier Science Ltd. All rights reserved.