Cladosporin Derivatives Obtained by Biotransformation Provide Guidance for the Focused Derivatization of this Antimalarial Lead Compound
作者:Andreas Fredenhagen、Kirsten Schroer、Harald Schröder、Dominic Hoepfner、Mathieu Ligibel、Liliane Porchet Zemp、Caroline Radoch、Ernst Freund、Aldo Meishammer
DOI:10.1002/cbic.201800588
日期:——
bacterial CYP102A1, yielding eight, mostly hydroxylated, derivatives. These new compounds covered a wide chemical space and contained two pairs of epimers in the tetrahydropyran ring. Although less potent than the parent compound, all analogues showed activity in a cell-based synthetase assay, thus demonstrating uptake and on-target activity in living cells with varying degrees of selectivity for the enzyme
数十年来已知的天然产物克拉多孢菌素最近被发现通过抑制赖氨酰-tRNA合成酶表现出有效的和选择性的抗疟原虫活性。用一种真菌菌株和两种放线菌菌株以及三重突变细菌CYP102A1进行了一系列的氧化生物转化,产生了八种(大多是羟基化的)衍生物。这些新化合物覆盖了广阔的化学空间,并在四氢吡喃环中包含两对差向异构体。尽管其效力不及母体化合物,但所有类似物在基于细胞的合成酶分析中均显示出活性,从而证明了对活细胞的摄取和靶向活性,对恶性疟原虫的赖氨酰-tRNA合成酶具有不同程度的选择性,并突出显示了合适的位点用于合成未来的cladosporin类似物。