5-<i>tert</i>-Butyl 1-ethyl 3-amino-1,4,5,6-tetrahydropyrrolo[3,4-<i>c</i>]pyrazole-1,5-dicarboxylate

C₁₃H₂₀N₄O₄

Xia, Wen-BinBai, Xiao-GuangLiu, Hong-TaoWang, Ju-Xian

Acta Crystallographica Section E (2011) 67, 5 o1150

a=10.772(3)Å   b=12.180(4)Å   c=12.986(4)Å

α=70.845(5)°   β=65.875(4)°   γ=85.821(5)°