CCOc1ccccc1NC(=O)C1=C(C)NC(C)=C(C(=O)Nc2ccccc2OCC)C1c1ccc([N+](=O)[O-])cc1
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?