New lignans from Urticae Fissae Herba.
J Asian Nat Prod Res. 2018 Apr 6:1-6. Epub 2018 Apr 6. PMID: 29623730
Two new lignans named neourticol A (1) and neourticol B (2), together with seven known compounds (3-9), were isolated from Urticae Fissae Herba, a folk medicine for rheumatism arthritis in China. The active evaluation results showed that 1 and 2 possessed the potent anti-complement and anti-inflammatory activities.