COc1ccc(CN(C(=O)Cn2nnc(-c3ccc(C)o3)n2)C(C(=O)NCC2CCCO2)c2ccco2)cc1
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?