The syntheses of (±)-juglomycin A and (±)-juglomycin B, racemates of two isomeric naturally occurring naphthoquinonoid antibiotics
作者:Robin G. F. Giles、Peter R. K. Mitchell、Gregory H. P. Roos、Jacobus M. M. Strümpfer
DOI:10.1039/p19810002091
日期:——
Syntheses of the diastereoisomeric 5-hydroxy-2-(4′-hydroxy-γ-butyrolacton-5′-yl)-1,4-naphthoquinones (1) and (2) and their 5-deoxy-analogues (3) and (4) are described. The stereochemistries of the latter, being defined through unambiguous synthesis, permit the assignment of the configurations of (1) and (2)(which were obtained from a single precursor) and also those of the natural products, juglomycins
非对映异构体5-羟基-2-(4'-羟基-γ-丁内酯-5'-基)-1,4-萘醌(1)和(2)及其5-脱氧类似物(3)和( 4)描述。后者的立体化学通过明确的合成定义,允许指定(1)和(2)的构型(它们是从单一前体获得的)以及天然产物朱红霉素A和B的构型。