753025-65-9Relevant academic research and scientific papers
Synthesis of a typical glucuronide-containing saponin, 28-O-β-D- glucopyranosyl oleanate 3-O-β-D-galactopyranosyl-(1→2)-[β-D- glucopyranosyl-(1→3)]-β-D-glucuronopyranoside
Peng, Wenjie,Han, Xiuwen,Yu, Biao
, p. 1641 - 1647 (2007/10/03)
28-O-β-D-Glucopyranosyl oleanate 3-O-β-D-galactopyranosyl- (1→2)-[β-D-glucopyranosyl-(1→3)]-β-D-glucuronopyranoside (1), a structurally typical glucuronide-containing triterpene saponin isolated from Aralia dasyphylla, was concisely synthesized in linear nine steps and 26% overall yield. The key features of the synthesis are: (1) attachment of the 28-glucosyl ester ahead of assembly of the 3-O-sugar chain; (2) elaboration of the glucuronide residue at a later stage via the TEMPO-mediated selective oxidation; (3) installation of 2-(azidomethyl)benzoyl group as a benzoylic neighboring participating group which is selectively removed afterwards for synthesis of the 1→2 sugar linkage.
