3d image of alpha-hederin skeletal formula

alpha-hederin triterpenoid saponin nigella sativa hedera helix anticancer cytotoxicity chemotherapeutic 5-fluorouracil glycosides ethnobotany anti-tumour 3d medicament precursor alkaloid drug pathway medication synthesis biosynthetic contraindications path cycle growth regulator medicine natural metabolite endogenous plant phytotherapy interaction biology biomolecule phytohormones remedy iatrogenic action cell intermediate biogenesis mechanism parasympathomimetic metabolism overdose mount preparation catabolism