COc1ccc(/C=C2/SC(c3ccccc3)N(NC(=O)CCCCCCCCC(=O)NN3C(=O)/C(=C\c4ccc(OC)c(OC)c4)SC3c3ccccc3)C2=O)cc1OC
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?