Cc1csc(=O)n1CCC(=O)OCC(=O)N(CC(C)C)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=O
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?