fr901379

FR901379 is an echinocandin-like antifungal lipopeptide.1 It is active against C. albicans, C. krusei, C. tropicalis, C. utilis, A. fumigatus, and A. niger fungi (IC50s = <0.003-1.9 μg/ml). FR901379 is protective against C. albicans infection in mice (ED50 = 1.1 mg/kg). It also reduces the number of pulmonary cysts and trophozoites in a mouse model of P. carinii infection. |1. Fujie, A., Iwamoto, T., Sato, B., et al. FR131535, a novel water-soluble echinocandin-like lipopeptide: Synthesis and biological properties. Bioorg. Med. Chem. Lett. 11(3), 399-402 (2001).

FR179642 is the cyclic peptide nucleus of the lipopeptide antifungal FR901379 and an intermediate in the synthesis of the echinocandin antifungal FK463 .1,2 1.Tomishima, M., Ohki, H., Yamada, A., et al.FK463, a novel water-soluble echinocandin lipopeptide: Synthesis and antifungal activityJ. Antibiot. (Tokyo)52(7)674-676(1999) 2.Ueda, S., Shibata, T., Ito, K., et al.Cloning and expression of the FR901379 acylase gene from Streptomyces sp. no. 6907J. Antibiot. (Tokyo)64(2)169-175(2011)

FR179642是抗真菌药物Micafungin合成过程中的关键中间体，同时也是脂肽类天然产物FR901379的环肽核心结构片段。FR179642属于棘白菌素类(echinocandin)抗真菌骨架相关结构，在β-1,3-葡聚糖合成抑制剂的结构优化与合成研究中具有重要参考价值。