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The iridoid ring scaffold is synthesized, in plants, by the enzyme iridoid synthase. [5] In contrast with other monoterpene cyclases , iridoid synthase uses 8-oxogeranial as a substrate. The enzyme uses a two-step mechanism, with an initial NADPH -dependent reduction step followed by a cyclization step that occurs through either a Diels-Alder ...
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Aucubin is a monoterpenoid based compound. [6] Aucubin, like all iridoids, has a cyclopentan-[C]-pyran skeleton. [6] Iridoids can consist of ten, nine, or rarely eight carbons in which C11 is more frequently missing than C10. [6]
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Iridodial is an iridoid.It is produced from 8-oxogeranial by the enzyme iridoid synthase (IS). [1] Iridodial is one of the substrates for the enzyme iridoid oxidase (IO) which produces 7-deoxyloganetic acid.
Harpagoside is characterized as an iridoid glycoside, which is a product of the mevalonate pathway present in the metabolism of eukaryotes, archaea and some bacteria. The iridane skeleton found in iridoids is monoterpenoid in origin and contains a cyclopentane ring fused to a six-membered oxygen heterocycle.
Catalpol is an iridoid glucoside. This natural product falls in the class of iridoid glycosides , which are simply monoterpenes with a glucose molecule attached. Natural occurrence
Cornel iridoid glycoside, a chemical extracted from Cornus officinalis, promoted neurogenesis and angiogenesis and improved neurological function after ischemia in rats. [ 13 ] Morroniside, the most abundant iridoid glycoside extracted from Cornus officinalis , substantially reduces osteophyte formation and subchondral sclerosis in mice models.