COc1ccc2[nH]cc(CCNC(=O)[C@](O)(Cc3cn(C)c4ccccc34)[C@@]3(O)OCC(O)C3O)c2c1
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?