N. Hirayama et al., STRUCTURE OF 8-(DICYCLOPROPYLMETHYL)-1,3-DIPROPYLXANTHINE, Acta crystallographica. Section C, Crystal structure communications, 49, 1993, pp. 1413-1414
The title compound, yl)-1,3-di-propyl-3,7-dihydro-1H-purine-2,6-dione,
is a potent antagonist of the adenosine Al receptor. The dicyclopropy
lmethyl group adopts a conformation with the H atom of the methyl grou
p located almost on the plane of the xanthine ring. Two n-propyl group
s have fully extended conformations.