(4aS,4bS,6aS,7S,9aS,9bS,11aR)-3-氟-1,4a,6a-二甲基-2-氧代-2,4a,4b中,5,6,6a,7,8,9,9a,9b,10,11,11a-十四氢-1H-茚并[5,4-f]喹啉-7-羧酸