New Cathepsin D Inhibitor Library Utilizing Hydroxyethyl Isosteres with Cyclic Tertiary Amines
作者:Rose M. McConnell、Kalyani Inapudi、Naveen Kadasala、Karthika Yarlagadda、Priya Velusamy、Matthew S. McConnell、Adam Green、Carol Trana、Kelley Sayyar、James S. McConnell
DOI:10.2174/1573406411208061146
日期:2012.9.1
The design and synthesis of hydroxyethylamine isosteres as inhibitors of cathepsin D based on SAR data have
been accomplished. A library of 96 of these hydroxyethylamine isosteres are described and many have proven to be very
potent inhibitors of human cathepsin D activity as measured using a fluorometric assay technique, via peptide substrate
Ac-Glu-Glu(Edans)-Lys-Pro-Ile-Cys-Phe-Phe-Arg-Leu-Gly-Lys(Methyl Red)-Glu-NH2. Compounds showing strongest
inhibition of cathepsin D activity were those that contain a hydroxyethyl-N’-2- or N’-(4-chlorophenyl)piperazine moiety
(IC50 values range from 0.55 to 8.5 nM), with N’-(2-pyrimidyl)piperizine (IC50 values range from 0.5 to 21.6 nM), with NN’-
L-piperazinocolinamide (IC50 values range from 0.001 – 0.25 nM), or N-N’-L-piperazinocolin-N-methylamide (IC50
values range from 0.015 – 7.3 nM) .
基于SAR数据,完成了羟乙胺类似物作为组织蛋白酶D抑制剂的设计和合成。描述了一个包含96种这些羟乙胺类似物的库,其中许多已被证明是非常有效的组织蛋白酶D活性抑制剂,这是通过使用荧光分析技术,以肽底物Ac-Glu-Glu(Edans)-Lys-Pro-Ile-Cys-Phe-Phe-Arg-Leu-Gly-Lys(Methyl Red)-Glu-NH2进行测量的。显示最强组织蛋白酶D活性抑制的化合物是那些含有羟乙基-N’-2-或N’-(4-氯苯基)哌嗪部分(IC50值范围从0.55到8.5 nM),以及含有N’-(2-嘧啶基)哌嗪(IC50值范围从0.5到21.6 nM),含NN’-L-哌嗪可内酰胺胺(IC50值范围从0.001 – 0.25 nM),或含N-N’-L-哌嗪可内酰胺-N-甲基胺(IC50值范围从0.015 – 7.3 nM)的化合物。