77026-67-6

(4aR,5aR)-6,7,7aα,8,10aα,10b-Hexahydro-5a,10bβ-dimethyl-8-methylene-2H-furo[3,2:6,7]oxireno[2,3]cyclohepta[1,2-b]pyran-2,9(5aH)-dione