4-((3'R,4'S,5'R)-6''-氯-4'-(3-氯-2-氟苯基)-1'-乙基-2''-氧代二螺[环己烷-1,2'-吡咯烷-3',3''-吲哚啉]-5'-甲酰胺]双环[2.2.2]辛烷-1-羧酸