3913-67-5 
 
C7H6ClN5 
 
(R)-7,8-dimethyl-4-(1H-pyrazol-1-yl)-7,8-dihydropteridin-6(5H)-one 
 
(S)-7,8-dimethyl-4-(1H-pyrazol-1-yl)-7,8-dihydropteridin-6(5H)-one 
[1]OrganicandBiomolecularChemistry,2015,vol.13,p.10471-10476