Chemistry and biology of khafrefungin. Large-scale synthesis, design, and structure–activity relationship of khafrefungin, an antifungal agent
作者:Masayuki Nakamura、Yuichiro Mori、Kennichi Okuyama、Kunihiro Tanikawa、Satoshi Yasuda、Kentaro Hanada、Shū Kobayashi
DOI:10.1039/b305818b
日期:——
Large-scale synthesis, design, and structure-activity relationships of khafrefungin are reported. Khafrefungin is an antifungal agent that inhibits inositol phosphorylceramide (IPC) synthase, an enzyme involved in fungal sphingolipid biosynthesis. Unlike other inhibitors that inhibit the corresponding enzyme in fungi and mammals to the same extent, khafrefungin does not impair sphingolipid synthesis in mammals
报道了khafrefungin的大规模合成,设计和构效关系。Khafrefungin是一种抗真菌剂,可抑制肌醇磷酸神经酰胺(IPC)合酶,该酶参与真菌鞘脂的生物合成。与在真菌和哺乳动物中以相同程度抑制相应酶的其他抑制剂不同,khafrefungin不会损害哺乳动物的鞘脂合成。我们已经开发了一种大规模合成khafrefungin的有效方法,并在此方法的基础上合成了各种khafrefungin衍生物。尽管大多数khafrefungin衍生物丧失了抗真菌活性,但内酯型衍生物的活性几乎与khafrefungin相同。我们还根据Khafrefungin的NOE实验设计并合成了在结构中心部分包含五元或六元环的衍生物。还合成了大环卡菲芬净衍生物,但是抗真菌活性丧失。这些结果表明,在真菌中可能严格识别khafrefungin的结构。