4-(2-(9-(4-氟苄基)-5，6，8，9-四氢-7H-吡咯并[2，3-b:5，4-c']二吡啶-7-基)-2-氧代乙基)双环[2.2.1]庚烷-1-羧酸

4-(2-(9-(4-氟苄基)-5，6，8，9-四氢-7H-吡咯并[2，3-b:5，4-c']二吡啶-7-基)-2-氧代乙基)双环[2.2.1]庚烷-1-羧酸

4-(2-(9-(4-Fluorobenzyl)-5，6，8，9-tetrahydro-7H-pyrrolo[2，3-b:5，4-c']dipyridin-7-yl)-2-oxoethyl)bicyclo[2.2.1]heptane-1-carboxylic acid