New C4- and C1-derivatives of furo[3,4-c]pyridine-3-ones and related compounds: Evidence for site-specific inhibition of the constitutive proteasome and its immunoisoform
作者:Anna Hovhannisyan、The Hien Pham、Dominique Bouvier、Alexander Piroyan、Laure Dufau、Lixian Qin、Yan Cheng、Gagik Melikyan、Michèle Reboud-Ravaux、Michelle Bouvier-Durand
DOI:10.1016/j.bmcl.2014.01.072
日期:2014.3
furo[3,4-c]pyridine-3-one), 6 model compounds (γ- and δ-lactones) and 20 furo- or thieno[2,3-d]-pyrimidine-4-one related compounds were designed and synthesized. Each compound was assayed for inhibition of CT-L, T-L and PA proteolytic activities of 20S constitutive proteasome (c20S). Most performant compounds were also assayed on 20S immunoproteasome (i20S). Compound 10 with a benzylamino group at C4
一组18个新的去甲-头孢菌素(1,1-二甲基呋喃[3,4- c ]吡啶-3-一)的C 4和C 1衍生物,6个模型化合物(γ-和δ-内酯)和20个呋喃设计或合成了噻吩并[2,3- d ]-嘧啶-4-one相关化合物。测定每种化合物对20S组成型蛋白酶体(c20S)的CT-L,TL和PA蛋白水解活性的抑制。还可以在20S免疫蛋白酶体(i20S)上分析大多数性能良好的化合物。在呋喃吡啶环的C 4处有苄氨基并在C 1处二甲基化的化合物10是c20S的最有效的PA位点特异性抑制剂(我知道了50每次转化费用600 nM)不会显着抑制i20S PA位点(iPA)。在iPA催化位点的计算机对接分析中,对10个化合物的分析表明,通常在该组成性PA位点(cPA)上没有观察到该化合物及相关位姿。Thieno [2,3- d ]嘧啶-4-酮40具有TL位点特异性,在体外对c20S和i20S均具有轻度抑制作用(我知道了50脂蛋白