b.sdf

     RDKit          3D

  8  8  0  0  0  0  0  0  0  0999 V2000
    1.3615    1.9613    1.2094 N   0  0  0  0  0  0  0  0  0  0  0  0
    0.3844    0.8618    0.3167 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.9361    1.1376   -1.0299 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.8792    0.0639   -1.8905 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.4981   -1.2257   -1.4055 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.1713   -1.4958   -0.0530 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.7726   -0.4188    0.8081 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.1908   -0.7483    2.2571 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0
  2  3  2  0
  3  4  1  0
  4  5  2  0
  5  6  1  0
  6  7  2  0
  7  8  1  0
  7  2  1  0
M  END