Mo. Dekaprilevich et al., SYNTHESIS AND STRUCTURE OF YL-2,4,8,10-TETRAAZABICYCLO[4.4.0]DECANE-3,9-DIONE, Russian chemical bulletin, 44(1), 1995, pp. 131-133
yl-2,4,8,10-tetraazabicyclo[4.4.0]decane-3,9-dione a regioisomer of th
e previously known yl-2,4,8,10-tetraazabicyclo[4.4.0]decane-3,9-dione
has been synthesized, and its structure has been established by X-ray
diffraction analysis. The bicyclic system of this molecule is formed b
y two heterocycles cis-annelated through the C(1)-C(6) bond. The relat
ive configurations of the asymmetric centers are S for C(5), and R for
C(7). In the monohydrate crystal studied, the molecules are linked by
O...H-O-W and O...H-N type H-bonds forming a three-dimensional framew
ork.