Phenolic constituents from the rhizomes of Acorus gramineus and their biological evaluation on antitumor and anti-inflammatory activities

A bioassay-guided fractionation and chemical investigation of the rhizomes of Acorus gramineus resulted in the isolation and identification of thirteen phenolic derivatives (1-13) including two new 8-O-4′-neolignans, named surinamensinols A (1) and B (2) and a new phenolic compound, named acoramol (9).