Synthesis and the Absolute Configuration of PQ-8, a C14-Polyacetylene Compound Isolated from Panax quinquefolium
摘要:
PQ-8 (5), a C-14-polyacetylene compound isolated from Panax quinquefolium, was synthesized starting from L-(+)-diethyl tartrate. The absolute stereostructure of PQ-8 was confirmed as (6R,7S)-6,7-epoxytetradeca-1,3-diyne.
Synthesis and the Absolute Configuration of PQ-8, a C14-Polyacetylene Compound Isolated from Panax quinquefolium
作者:Mitsuru Satoh、Naoki Takeuchi、Yasuo Fujimoto
DOI:10.3987/com-96-7665
日期:——
PQ-8 (5), a C-14-polyacetylene compound isolated from Panax quinquefolium, was synthesized starting from L-(+)-diethyl tartrate. The absolute stereostructure of PQ-8 was confirmed as (6R,7S)-6,7-epoxytetradeca-1,3-diyne.
Synthesis of Panax Acetylenes: Chiral Syntheses of Acetylpanaxydol, PQ-3 and Panaxydiol
Acetylpanaxydol (1-Ac), PQ-3 (2) and panaxydiol (3) and their optical isomers were synthesized from L-(+)-diethyl tartrate. The absolute configurations of 1-Ac, 2 and 3 were determined to be 1-Ac (3R,9R,10S), 2 (9R,10S) and 3 (3R,10S), respectively, by comparisons of their opticalrotations and the NMR data of their MTPA esters with those of natural products.