Tyrosine oxime derivatives from the fruiting bodies of basidiomycete .

Three undescribed -prenyl-tyrosine oxime derivatives, serpulanines D-F (), were isolated from natural fruiting bodies of the basidiomycete together with serpulanine C (), and other known compounds (). The structures were elucidated based on NMR spectroscopic and mass spectrometry data. Compounds - were screened for their antibacterial activities against (MRSA and MSSA) and using the agar well diffusion method at 1 mg/mL. All of them were inactive in the antibacterial activity assays.