Benzyl 6-[4-[cyclopropyl-[7-fluoro-4-[4-(trifluoromethoxy)benzoyl]-1,2,3,3a,9,9a-hexahydrocyclopenta[b]quinolin-9-yl]amino]-4-oxobutanoyl]oxy-3,4,5-trihydroxyoxane-2-carboxylate