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Chemical investigation of Fritillaria verticillata Willd. led to the isolation of eight novel isosteroidal alkaloids (1—4, 6, 9—11) and four known alkaloids (5, 7—8, 12), including three unprecedented cis‐fused D/E (13α, 17α) cevanine alkaloids (1—3), one rarely cis‐fused E/F (22α) cevanine alkaloid (6), and one uncommon 5β‐jervine‐type isosteroidal alkaloid featuring a cis‐fused A/B ring moiety (11)...
Parkinson's disease (PD) is one of the most common neurogenerative diseases (NDDs), characterized as less neurotransmitter release and loss of dopaminergic (DAergic) neurons with microglial inflammatory response as a key player. Natural product harpagide with anti‐inflammatory function is a potential therapeutic drug of PD, but its role towards microglial activation and inflammation‐mediated neuronal...
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