CC(C)=C[C@@H]1C[C@H](C)[C@H]2CC[C@H](C)c3c(O[C@@H]4O[C@@H](C)[C@@H](O)[C@@H](O)[C@@H]4O)c(O)c(C)c1c32
Hydrogen bond acceptor is the chemical compound which contains the lone electron pairs that participate in the hydrogen bond formation. How many hydrogen bond acceptors does the molecule contain?