COc1ccc(Cl)cc1NC(=O)CSC1=Nc2ccccc2C2=NC(CC(=O)NCc3ccc4c(c3)OCO4)C(=O)N12
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?