Novel methyl substituted 1-(5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)methanones are P2X7 antagonistsDale A. Rudolph, Michael A. Letavic, Michael K. Ameriks et al.|Bioorganic & Medicinal Chemistry Letters|2015Cited by 33