COC(=O)C1=C(c2ccc(OC(F)(F)F)cc2)C[C@@H]2CC[C@H]1N2C(=O)NCCc1ccccc1
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?