COc1ccccc1-c1cnc2c(c1)C(=O)N([C@@H](C)CO)C[C@@H](C)[C@H](CN(C)C(=O)c1cccnc1)O2
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?