Definition
ChEBI: Friedelin is a pentacyclic triterpenoid that is perhydropicene which is substituted by an oxo group at position 3 and by methyl groups at the 4, 4a, 6b, 8a, 11, 11, 12b, and 14a-positions (the 4R,4aS,6aS,6bR,8aR,12aR,12bS,14aS,14bS-enantiomer). It is the major triterpenoid constituent of cork. It has a role as an anti-inflammatory drug, a non-narcotic analgesic, an antipyretic and a plant metabolite. It is a pentacyclic triterpenoid and a cyclic terpene ketone.
General Description
Friedelin, a pentacyclic triterpene, is found in several plants like Cissus quadrangularis, Celastrus vulcanicola, Terminalia?avicennioides, and Alangium salvifolium. It is known to act as a histamine H1 receptor?(H1R) antagonist, anti-microbial, anti-HIV, and anti-cancer agent.
Synthesis
Crude bamboo powder as raw materials, take 1kg, add 5 times the amount of n-hexane, heating and reflux extraction 4 times, each time 2h, combined extract, concentrated to extract, washed with 70% ethanol, and then extracted with ethyl acetate, ethyl ac
