COc1ccc(N2C(=O)c3c(c4[nH]c5ccc(OC)cc5c4c4ccc(C(C)(C)C)cc34)C2=O)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?