CC(CCC(=O)OCC1OC(C#Cc2ccccc2)C=CC1Oc1ccc(C)cc1)=NOC(C)c1cn(C2COCC2O)nn1
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?