20 C 2.43470 -0.55420 -0.45620 C 3.57560 -1.31420 -0.20540 C 4.75030 -0.68650 0.21740 C 4.78220 0.68340 0.38720 C 3.65720 1.44310 0.13500 C 2.47410 0.82800 -0.28310 C 1.26970 1.64180 -0.54710 O 1.30490 2.52700 -1.37820 N 3.70270 2.91180 0.31340 O 4.75940 3.46200 0.56710 O 2.68350 3.57010 0.20660 N 5.96310 -1.49200 0.48420 O 7.01810 -0.93870 0.73800 O 5.90610 -2.70820 0.44990 C 3.54330 -2.78010 -0.38660 O 4.31180 -3.31340 -1.16150 H 1.52430 -1.03420 -0.78340 H 5.69270 1.16340 0.71440 O 0.13240 1.40230 0.13400 O 2.66160 -3.52530 0.30760