COC(=O)C1(c2ccc(N(C)C)cc2OC)CCCN(C(=O)Oc2ccccc2[N+](=O)[O-])CCc2c1[nH]c1ccccc21
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?