CC(C)C[C@H]1CN([C@@H](CC(C)C)CN2CCCC2CN2C(=S)NC[C@@H]2Cc2ccc(O)cc2)C(=S)N1CC1CCCCC1
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?