Total Synthesis of Rutamycin B, a Macrolide Antibiotic from <i>Streptomyces </i><i>a</i><i>ureofaciens</i>
作者:James D. White、Roger Hanselmann、Randy W. Jackson、Warren J. Porter、Yoshihiro Ohba、Thomas Tiller、Shan Wang
DOI:10.1021/jo0104429
日期:2001.7.1
Rutamycin B (2) was synthesized from three principal subunits, spiroketal 75, keto aldehyde 83, and aldehyde 108. First, triol 62 was assembled by Julia coupling of sulfone 56 with aldehyde 58 followed by an acid-catalyzed spiroketalization. The three hydroxyl functions of 62 were successfully differentiated, leading to phosphonate 75. The latter was condensed in a Wadsworth-Emmons reaction with 83