Definitions
1.NounThe tetranortriterpenoid ((1S,2aR,3aR,3bR,9aR,9bR,11aS)-1-(furan-3-yl)-5-hydroxy-3b,6,6,9a,11a-pentamethyl-2,2a,6,9a,9b,10,11,11a-octahydronaphtho[1',2':6,7]indeno[1,7a-b]oxirene-4,7(1H,3bH)-dione) found in the Asian tree Toona ciliata