(Q28163619)

C[C@H]1[C@H](OC(=O)CCC(=O)O)O[C@@H]2OC3(C)CC[C@H]4[C@H](C)CC[C@@H]1[C@@]24OO3.O[C@@H](c1cc(C(F)(F)F)nc2c(C(F)(F)F)cccc12)[C@H]1CCCCN1