Chrysogenamide A from an endophytic fungus associated with Cistanche deserticola and its neuroprotective effect on SH-SY5Y cells.

Chrysogenamide A (1), a new member of the macfortine group of alkaloids, along with four known compounds (2 approximately 5) were identified from Penicillium chrysogenum No. 005, an endophytic fungus associated with Cistanche deserticola Y. C. Ma. The new structure was elucidated on the basis of comprehensive spectral analysis. 1 exhibited a neurocyte protection effect against oxidative stress-induced cell death in SH-SY5Y cells.