Ellagitannin Chemistry. The First Total Chemical Synthesis of an O(2),O(3)-Galloyl-Coupled Ellagitannin, Sanguiin H-5
作者:Ken S. Feldman、Aruna Sambandam
DOI:10.1021/jo00130a016
日期:1995.12
The biomimetic synthesis of sanguiin H-5 (1) was accomplished through the diastereoselective formation of the crucial biphenyl carbon-carbon bond between galloyl moieties at the O(2) and O(3) positions of an appropriately protected glucose-derived precursor. Furthermore, the beta-anomeric galloyl linkage was established with complete stereochemical control.