CCOC(=O)CCN1C(=O)[C@H]2CC[C@H]3/C(=N\OCC(C)C)C[C@@H](O)[C@@H](O)[C@@H]3[C@@H]2C1=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?