Pinguisane and dimeric pinguisane-type sesquiterpenoids from the Japanese liverwort Porella acutifolia subsp. tosana.
Two new pinguisane-type, three new Diels-Alder reaction-type dimeric pinguisane sesquiterpenoids and known sesqui and diterpenoids were isolated from the ether extract of the Japanese liverwort Porella acutifolia subsp. tosano. Their absolute stereostructures were established by a combination of extensive 2D-NMR, CD spectra, X-ray crystallographic analysis, modified Mosher's method and chemical correlation.
Hashimoto
T
T
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Japan.
Irita
H
H
Tanaka
M
M
Takaoka
S
S
Asakawa
Y
Y
D002942:Circular Dichroism; D018360:Crystallography, X-Ray; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D010946:Plants, Medicinal / Q000737:chemistry* / Q000145:classification; D012717:Sesquiterpenes / Q000737:chemistry*; D013237:Stereoisomerism
D012717:Sesquiterpenes