7-chloro-2-phenyl-[1,3]oxazolo[5,4-d]pyrimidine

7-morpholin-4-yl-2-phenyl-[1,3]oxazolo[5,4-d]pyrimidine

7-benzylsulfanyl-2-phenyl-[1,3]oxazolo[5,4-d]pyrimidine

7-methylsulfanyl-2-phenyl-[1,3]oxazolo[5,4-d]pyrimidine

2-phenyl-7-piperidin-1-yl-[1,3]oxazolo[5,4-d]pyrimidine