N-((4as,6ar,6bs,8ar,12as,14ar,14bs)-11-氰基-2,2,6a,6b,9,9,12a-七甲基-10,14-二氧代-1,3,4,5,6,6a,6b,7,8,8a,9,10,12a,14,14a,14b-十六氢冰-4a(2h)-基)-2,2-二氟丙酰胺