CCOC(=O)c1ccccc1NC(=O)Cn1c(=O)n(-c2ccc(CC)cc2)c(=O)c2c(C)c(C(=O)N(C)C)sc21
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?