C=C[C@@H]1c2c(F)cccc2N(S(=O)(=O)c2ccc(C)cc2)[C@H](c2ccc(OC(C)=O)cc2)C1(C#N)C#N
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?