TEST CONDITIONS
HPLC Test Conditions: Column: Chromolith Porformance C18 4.6 mm x 100 mm; Flow Rate: 1 ml/min; Solvents: Water (0.1% TFA) and acetonitrile; Gradient: 5% - 100% acetonitrile over 20 min, return to 95% water over 10 minutes. The chromatogram used for purity and homogeneity assessment was the summed absorbance between 220 nm and 280 nm.1H-NMR Conditions: Proton magnetic resonance spectra were run in deuterium oxide at 300 MHz.