CCCCNC(=O)C(C)N(CCN(C)C)C(=O)CCCCCN1C(=O)NC(c2ccc(Cl)cc2)C(C(=O)OCc2ccccc2)=C1C
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?