Chemical constituents of the roots of Ormocarpum sennoides subsp. zanzibaricum

TitleChemical constituents of the roots of Ormocarpum sennoides subsp. zanzibaricum
Publication TypeJournal Article
Year of Publication2020
AuthorsMutisoChalo, D, Kakudidi, E, Origa-Oryem, H, Namukobe, J, Franke, K, Yenesew, A, A.Wessjohann, L
JournalBiochemical Systematics and Ecology
Date PublishedDecember 2020
KeywordsFabaceaePapilinoideaeOrmocarpum sennoides subsp. zanzibaricumTrime-chamaejasminBiflavonoids

Phytochemical investigation of the roots of O. sennoides subsp. zanzibaricum Brenan & J.B. Gillett resulted in the isolation of three biflavonoids (trime-chamaejasmin, (+)- chamaejasmin, (+)-liquiritigeninyl-(I-3,II-3)-naringenin), one bi-4-phenyldihydrocoumarin (diphysin), one isoflavan (glabridin), one triterpenoid (3-O-acetyloleanoic acid) and a phytosterol (β-sitosterol). Compounds were identified by detailed MS, 1D and 2D NMR spectroscopic analyses. Their absolute configurations were elucidated based on ECD spectra. The previously undescribed trime-chamaejasmin represents a bis-epi-chamaejasmenin C diastereomer. The chemophenetic significance is discussed in detail. The results contribute to the phytochemical characterization of the genus Ormocarpum and suggest a close chemophenetic relationship with other genera within the subfamily Papilionoideae. Furthermore, this report provides baseline data for comparing the two infraspecific taxa of O. sennoides (Willd.) DC.