Research Article

The Influence of pH and Temperature on the Stability of N-[(Piperidine)methylene]daunorubicin Hydrochloride and a Comparison of the Stability of Daunorubicin and Its Four New Amidine Derivatives in Aqueous Solutions

Figure 5

The relationships and for the hydrolysis of PPD+ catalyzed by hydrogen ions and spontaneous hydrolysis of , PPD, and PPDāˆ’ under the influence of water.
803789.fig.005