抄録
From the seeds of Alpinia katsumadai HAYATA, alpinetin (A) (7-hydroxy-5-methoxyflavanone) and a compound (B), whose structure has been established as 2', 4'-dihydroxy-6'-methoxychalcone by both spectroscopic methods and derivation from the known compound (A), were isolated by chromatography. The compound (B) was named cardamomin.
