6-Substituted amiloride derivatives as inhibitors of the urokinase-type plasminogen activator for use in metastatic disease
作者:Benjamin J. Buckley、Hiwa Majed、Ashraf Aboelela、Elahe Minaei、Longguang Jiang、Karen Fildes、Chen-Yi Cheung、Darren Johnson、Daniel Bachovchin、Gregory M. Cook、Mingdong Huang、Marie Ranson、Michael J. Kelso
DOI:10.1016/j.bmcl.2019.126753
日期:2019.12
anti-cancer side-activities in multiple rodent models. These effects appear to arise, at least in part, through moderate inhibition of the urokinase-type plasminogen activator (uPA, Ki = 2.4 µM), a pro-metastatic trypsin-like serine protease that is upregulated in many aggressive solid malignancies. In applying the selective optimization of side-activity (SOSA) approach, a focused library of twenty two 6-substituted
口服保钾利尿剂阿米洛利在多种啮齿动物模型中均显示出抗癌的副作用。这些作用似乎至少部分是通过适度抑制尿激酶型纤溶酶原激活剂(uPA,K i= 2.4 µM),一种在多种侵袭性实体恶性肿瘤中上调的促转移性胰蛋白酶样丝氨酸蛋白酶。在应用选择性优化的活性(SOSA)方法中,制备了22个6-取代的阿米洛利衍生物的聚焦库,其中有多个实例显示了nPA范围内的uPA抑制能力。X射线共晶体结构显示,相对于阿米洛利,效能的提高是由于附加的6个取代基对uPA的S1β亚位点的占用增加而引起的。领先的化合物显示出对相关胰蛋白酶样丝氨酸蛋白酶的高选择性,并且在大鼠中没有利尿剂或抗利尿剂的作用。在晚期肺转移的异种移植小鼠模型中,化合物15显示出抗转移作用。