CCC/C=C/c1ccc(CN2C(C(C)C)C(=O)N(Cc3cn(Cc4ccco4)nn3)CCS2(=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?