Cc1ccccc1N1C(=O)/C(=C\NNc2nc3c(c(=O)n(C)c(=O)n3C)n2C)C(=O)NC1=S
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?