6533b836fe1ef96bd12a1505

RESEARCH PRODUCT

Concentriols B, C and D, three squalene-type triterpenoids from the ascomycete Daldinia concentrica

Toshihiro HashimotoMasami TanakaManuela BaumgartnerYoshinori AsakawaDang Ngoc QuangMarc Stadler

subject

SqualeneMagnetic Resonance SpectroscopyMolecular StructureStereochemistrySpectrum AnalysisEthyl acetatePlant ScienceGeneral MedicineHorticultureBiologybiology.organism_classificationBiochemistryTriterpenesSqualenechemistry.chemical_compoundTriterpenoidUv spectraAscomycotachemistryDaldinia concentricaOrganic chemistryMolecular BiologyTwo-dimensional nuclear magnetic resonance spectroscopy

description

Abstract Three squalene-type triterpenoids named concentricols B, C and D ( 1 – 3 ) were isolated from the ethyl acetate extract of fruiting bodies of the xylariaceous ascomycete Daldinia concentrica . Their absolute structures were elucidated by analysis of 2D NMR, MS, IR and UV spectra, and the modified Mosher's method.

https://doi.org/10.1016/s0031-9422(02)00264-9