COCC12CCC(OC)C34C5CC6(O)C(OC)C=C(C5C6OC(=O)c5ccccc5)C(C(OC)C13)C4N(C)C2
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?