COc1ccc(-c2ccc(CN3C(C(C)C)C(=O)N(Cc4cn(CC5CCCCC5)nn4)CCS3(=O)=O)cc2)cn1
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?