CC(=O)OC[C@@]12CC[C@H]3C(C)(C)CCC[C@]3(C)[C@H]1C[C@@H](C1=CC(=O)O[C@H]1O)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?