20 N 1.16042 -0.47636 0.07163 N 2.46380 0.02532 0.33438 C 2.97413 0.93918 -0.63085 N 3.70082 0.42180 -1.65164 N 4.22582 1.22964 -2.61566 C 4.00129 2.55482 -2.55221 C 3.24435 3.15279 -1.55265 C 3.02087 4.54233 -1.52953 C 2.24303 5.12054 -0.52771 C 1.67652 4.31907 0.45597 C 1.89583 2.93925 0.44343 C 2.69352 2.32483 -0.55489 H 1.01741 -1.33754 0.60704 H 1.11851 -0.78470 -0.90781 H 2.57566 0.43756 1.26264 H 4.45485 3.12771 -3.35375 H 3.44813 5.18371 -2.29796 H 2.07216 6.19438 -0.52128 H 1.05651 4.76301 1.23105 H 1.41722 2.33790 1.21336