CCN(CC)C(=O)c1sc2c(c1C)c(=O)n(-c1ccc(C)c(C)c1)c(=O)n2CC(=O)NCC1CCCO1
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?