CC(=O)OCC1OC(N2C(c3ccccc3)=CC(c3cccs3)C(C#N)=C2S)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?