Two New Alkaloids from the Marine‐Derived Fungus Penicillium sp. LSH‐3‐1

Two new alkaloids, peniokaramine (1) and penipyranopyridine (6), along with seven known compounds, were isolated from the marine-derived fungus Penicillium sp. LSH-3-1. Their structures were elucidated from UV, IR, MS, 1D and 2D NMR spectroscopic data. The anti-inflammatory potential of compounds 1-8 in LPS-induced RAW264.7 cells was detected, revealing that compounds 3 and 5 significantly decreased LPS-induced production of pro-inflammatory mediators, including NO, IL-6 and TNF-α. Compounds 1-8 were also screened for their cytotoxic activity against A549 cells and compound 1 showed moderate activity.