Mandal Gour Hari, Kelley Steven P, Sathyamoorthi Shyam
Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States.
Department of Chemistry, University of Missouri─Columbia, Columbia, Missouri 65211, United States.
Org Lett. 2024 Jul 5;26(26):5463-5466. doi: 10.1021/acs.orglett.4c01726. Epub 2024 Jun 21.
Here, we present the first enantioselective total syntheses of the natural products (+)-kasugamycin, a potent antifungal antibiotic, and (+)-kasuganobiosamine, a compound that results from the degradation of kasugamycin. Salient features of these syntheses include a second-generation enantioselective preparation of a kasugamine derivative (efficiency much improved relative to that of our first chiral-pool effort) and our laboratory's sulfamate-tethered -Wacker cyclization.
在此,我们首次对天然产物(+)-春日霉素(一种强效抗真菌抗生素)和(+)-春日氨基双糖(一种由春日霉素降解产生的化合物)进行了对映选择性全合成。这些合成的显著特点包括第二代对映选择性制备春日胺衍生物(相对于我们首次手性池合成,效率有了很大提高)以及我们实验室的氨基磺酸酯连接的瓦克环化反应。