CCOC(=O)c1ccc(N2C(=O)/C(=C/c3ccc(N(CCC#N)CCC#N)cc3)N=C2c2cc([N+](=O)[O-])ccc2Cl)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?