人参皂苷是来自草药的主要生物活性成分,具有广泛的药理功能。Goodyeroside A 是kinsenoside 的一种差向异构体,仍然很少被探索。在本报告中,我们化学合成了人参皂苷、Goodyeroside A 及其类似物,具有聚糖变异、手性中心的手性反转以及内酰胺对内酯的生物等排置换。在这些化合物中,goodyeroside A 及其甘露糖基对应物表现出优异的抗炎功效。此外,还发现枸杞苷 A 通过抑制 NF-κB 信号通路有效抑制炎症。还探索了构效关系,以进一步开发更有前途的人参皂苷类似物作为候选药物。
efficiently by a chemo-enzymatic approach with a total yield of 12.7%. The aglycones, (R)- and (S)-3-hydroxy-γ-butyrolactone, were prepared from D- and L-malic acid by a four-step chemical approach with a yield of 75%, respectively. These butyrolactones were then successfully glycosidated using β-D-glucosidase as a catalyst in a homogeneous organic-water system. Under the optimizedenzymaticconditions, the yields
Kinsenoside (1) 和 goodyeroside A (2) 是两种具有多种生物活性的天然立体异构体,已通过化学酶促方法有效合成,总产率为 12.7%。苷元,(R)-和(S)-3-羟基-γ-丁内酯,分别由D-和L-苹果酸通过四步化学方法制备,产率分别为75%。然后在均相有机水系统中使用 β-D-葡萄糖苷酶作为催化剂成功地糖苷化这些丁内酯。在优化后的酶促条件下,酶促步骤中kinsenoside和goodyeroside A的产率均达到16.8%。
Synthesis of nature product kinsenoside analogues with anti-inflammatory activity
medicine with a broad range of pharmacological functions. Goodyeroside A, an epimer of kinsenoside, remains less explored. In this report we chemically synthesized kinsenoside, goodyeroside A and their analogues with glycan variation, chirality inversion at chiral center(s), and bioisosteric replacement of lactone with lactam. Among these compounds, goodyeroside A and its mannosyl counterpart demonstrated
人参皂苷是来自草药的主要生物活性成分,具有广泛的药理功能。Goodyeroside A 是kinsenoside 的一种差向异构体,仍然很少被探索。在本报告中,我们化学合成了人参皂苷、Goodyeroside A 及其类似物,具有聚糖变异、手性中心的手性反转以及内酰胺对内酯的生物等排置换。在这些化合物中,goodyeroside A 及其甘露糖基对应物表现出优异的抗炎功效。此外,还发现枸杞苷 A 通过抑制 NF-κB 信号通路有效抑制炎症。还探索了构效关系,以进一步开发更有前途的人参皂苷类似物作为候选药物。