Enhancement of the base for 3,7-disubstituted(1,2,4)triazolo(4,3-a)pyrazin-8(7H)-one derivatives as promising pharmaceutical agents - Yu. Kulikovska; S. S. Kovalenko; O. G. Drushlyak; I. O. Zhuravel; S. M. Kovalenko (Journal of organic and pharmaceutical chemistry, 2014)