COc1ccc(CNC(=O)CC2C[C@H](C(=O)N3CCOCC3)[C@@]3(CCC4CCCC4)c4[nH]c5ccccc5c4CCN3C2=O)cc1OC
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?