Acetylcholinesterase (AChE) inhibitors are still an important option for managing
symptoms of mild to moderate Alzheimerʼs disease. In this study, we aimed to evaluate
the potential in vitro AChE inhibitory activity of two Argentinian endemic Solanaceae species, Jaborosa bergii and J. runcinata. UHPLC-DAD-HRMS metabolite profiling revealed the presence of withanolides in the
active CH2Cl2 subextracts. Their fractionation led to the isolation and identification of two known
spiranoid withanolides from J. runcinata and three new withanolides with a skeleton similar to that of trechonolide-type withanolides
from J. bergii. The known compounds showed moderate AChE inhibitory activity, while the new ones
were inactive.
Keywords
Withanolides -
Jaborosa bergii
-
Jaborosa runcinata
- Solanaceae - Alzheimerʼs disease - cholinesterase inhibition