CCOC(=O)CCC(NC(=O)c1ccc(Nc2nc3ccc(C(F)(F)F)cc3nc2-c2ccccc2)cc1)C(=O)OCC
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?