Armochaetoglasins J and K: new cytochalasans from .

Two novel cytochalasans, armochaetoglasin J () and armochaetoglasin K (), along with 14 known analogues (-) were isolated from Their structures were elucidated by HRESIMS, NMR spectroscopy, single-crystal X-ray crystallography, and ECD spectra. Armochaetoglasins J and K were found to be inactive against the HepG2, HT-29, K562, HL-60, and A549 cancer cell lines.