CCOc1ccc(CCN2C(=S)N([C@@H](CC(C)C)CN3CCCC3CN3C(=S)NC[C@@H]3CC(C)C)C[C@@H]2Cc2ccc(O)cc2)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?