COc1ccc(NC(=O)N(C)[C@H]2C[C@H]3c4[nH]c5ccc(-c6ccc(OC)cc6)cc5c4CCN3C[C@H]2[C@H](C)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?