CC(C)(C)OC(=O)N1CCCC1C(=O)NCCNc1ccc(NCCNC(=O)C2CCCN2C(=O)OC(C)(C)C)c2c1C(=O)c1ccccc1C2=O
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?