A hexacyclic ent-trachylobane diterpenoid possessing an oxetane ring from Mitrephora glabra.
Li C, Lee D, Graf TN, Phifer SS, Nakanishi Y, Burgess JP, Riswan S, Setyowati FM, Saribi AM, Soejarto DD, Farnsworth NR, Falkinham JO, Kroll DJ, Kinghorn AD, Wani MC, Oberlies NH. A hexacyclic ent-trachylobane diterpenoid possessing an oxetane ring from Mitrephora glabra. Org Lett. 2005 Dec 08; 7(25):5709-12.