Cc1cc2c(O)c(c1)CN(Cc1ccccc1)Cc1cc(C)cc(c1O)CN(Cc1ccccc1)Cc1cc(C)cc(c1O)CN(Cc1ccccc1)C2
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?