A Unified Strategy for the Total Synthesis of the Angucycline Antibiotics SF 2315A, Urdamycinone B, and the Shunt Metabolite 104-2
作者:Kyungjin Kim、Vincent A. Boyd、Aditya Sobti、Gary A. Sulikowski
DOI:10.1002/ijch.199700004
日期:——
Total syntheses of the angucycline antibiotics SF 2315A (2), urdamycinone B (4), and the shunt metabolite 104–2 (5) are described, as well as an approach toward the synthesis of SF 2315B (3). All four syntheses feature a Diels–Alder cycloaddition between a bromojuglone derivative and an optically active diene (25a), the latter derived from (–)-quinic acid. Subsequent key transformations include (i)