Chaparrinone

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** A quassinoid phytochemical isolated from Ailanthus integrifolia sp. calycina and other plant species with potential antineoplastic activity. Chaparrinone inhibits protein synthesis, has antimalarial properties, and is cytotoxic to some tumor cells. (NCI04)

**Synonyms:** - Picras-3-ene-2,16-dione, 11,20-epoxy-1,11,12-trihydroxy-, (1beta,11beta,12alpha)-