1′-Acetoxychavicol acetate (ACA), which was isolated from the rhizomes of Zingiberaceae, exhibits various biological actions, including anti-inflammatory, anti-human immunodeficiency virus (HIV), and anti-cancer activities. ACA represents an attractive candidate for the treatment of many cancers. We herein examined the structure-activity relationships of ACA derivatives based on the benzhydrol skeleton in human leukemia cells (HL-60). Our results revealed that the ACA derivatives synthesized (ACA, 1, and 18) had inhibitory effects on the growth of multiple myeloma cells (IM-9 cells) by inactivating the NF-κB pathway.
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