COC(=O)C1=C(C(=O)OC)C2N(CC=C(C)C)c3ccccc3C23CCC(=O)N(Cc2cccc(C(F)(F)F)c2)C3=N1
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?