CN(CCCC[C@H](CNCc1ccc(-c2ccccc2)cc1)N1C[C@H](c2ccccc2)N(CCc2ccc(Cl)c(Cl)c2)C(=O)C1=O)Cc1ccc(-c2ccccc2)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?