C=CCN1C(=O)/C(=C/c2ccc(C)cc2)N=C1SC1OC(COC(C)=O)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?