Iris missouriensis

Stereoisomers of hopane as the parent hydroearbon of about 100 naturally abundant hopane triterpenes are isolated in small amounts from oil slate and petroleum of various provenanee. Hydroxylated hopanes sueh as (-l-)-6a,22-hopanediol are found to oeeur in some liehens and, assoeiated with (-l-)-22(29)-hopen-6a,2ip-diol, in the roots of Iris missouriensis (Liliaeeae). Neohopanes exemplified by (-l-)-12-neo-hopen-3p-ol from Rhododendron linearifolium (Erieaeeae) rarely oeeur as natural produets. 

Me ether [101339-27-9]. 2-Methoxy-6-octadecyl-l,4-benzoquinone. Deoxyirisoquin C25H42O3 M 390.605 Constit. of Iris missouriensis. 

Zeorin and hopan-3p,6a,15P,22-tetrol were found in the higher plants Iris missouriensis 737), Tripterygium regelii 435) and Mollugo pentaphylla 663) respectively. The C-70 polyterpene ficaprenol (588) was found in serveral lichens 618). 

Wong S-M, Oshima Y, Pezzuto JM, Fong HHS, Farnsworth NR (1986) Plant Anticancer Agents. XXXIX Triterpenes from Iris missouriensis (Iridaceae). J Pharmaceut Sci 75 317... 

---