COCCNC(=O)C(c1c[nH]c2ccccc12)N(C(=O)c1snc(C(N)=O)c1N)c1cccc(OC)c1
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?