CCOc1ccc(NC(=O)Cn2c(=O)n(CCc3ccccc3)c(=O)c3c4c(sc32)CN(C(C)=O)CC4)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?