p. 1333 - 1344
(2008/09/17)3-amino-2-phenylaminopyrazino[2',3':4,5]-thieno[3,2-d]pyrimidin-4(3H)-one
triphenylphosphine
3-phenyl-2-thioxopyrazino[2',3':4,5]thieno[3,2-d]-1,2,4-triazolo[1,5-a]pyrimidin-10(3H)-one
1,3-dihydro-3-phenylpyrazino[2',3':4,5]thieno[3,2-d]-1,2,4-triazolo[1,5-a]pyrimidin-2,10-dione
2,6-bis(10-oxo-3-phenylpyrazino[2',3':4,5]thieno[3,2-d]-1,2,4-triazolo[1,5-a]pyrimidin-2-yl)pyridine
2,3-diphenylpyrazino[2',3':4,5]thieno[3,2-d]-1,2,4-triazolo[1,5-a]pyrimidin-10(3H)-one
N,N'-bis(10-oxo-3-phenylpyrazino[2',3':4,5]thieno[3,2-d]-1,2,4-triazolo[1,5-a]pyrimidin-2-yl)benzene-1,4-diamine