The design and synthesis of new inhibitor analogues for the Mycobacterium tuberculosis (Mtb) phosphatase PtpB is described. Analogues were synthesized by incorporation of two common and effective phosphate mimetics, the isothiazolidinone (IZD) and the difluoromethylphosphonic acid (DFMP). The basic scaffold of the inhibitor was identified from structure–activity relationships established for a previously published isoxazole inhibitor, while the phosphate mimetics were chosen based on their proven cell permeability and activity when incorporated into previously reported inhibitors for the phosphatase PTP1B. The inhibitory activity of each compound was evaluated, and each was found to have low or submicromolar affinity for PtpB.
描述了结核分枝杆菌 (Mtb)
磷酸酶
PTpB 的新型
抑制剂类似物的设计和合成。通过掺入两种常见且有效的
磷酸盐模拟物
异噻唑烷酮 (IZD) 和二
氟甲基膦酸 (D
FMP) 来合成类似物。该
抑制剂的基本支架是根据先前发表的
异恶唑抑制剂建立的结构-活性关系确定的,而
磷酸盐模拟物是根据其已证实的细胞渗透性和当纳入先前报道的
磷酸酶
PTP1B
抑制剂时的活性来选择的。评估了每种化合物的抑制活性,发现每种化合物对
PTpB 具有低或亚微摩尔的亲和力。