摘要：
The synthesis and X-ray crystal structure of a methylene-bridged glycoluril dimer 2 was reported.The methylene-bridged glycoluril dimer 2（C38H36Br4N8O12,Mr=1116.35） crystallizes in space group P1 with a=10.5802（6）,b=16.8469（9）,c=24.7673（14） ,α=98.00,β=96.263（1）,γ=101.606（1）o,V=4239.3（4）3,Z=4,Dc=1.749 g/cm3,μ=3.869 mm-1 and F（000）=2224.It crystallizes in an S-shaped conformation that displays two ethoxycarbonyl groups on each face of the molecule.
