RESIDUE 50N 38 CONECT P1 4 OP1 OP2 O4 OP3 CONECT C1 3 O1 N1 C10 CONECT O1 2 C1 H15 CONECT N1 2 C1 C2 CONECT C2 3 N1 C3 N2 CONECT C3 3 C2 C4 N3 CONECT C4 3 C3 C10 H1 CONECT OP1 1 P1 CONECT OP2 2 P1 HOP2 CONECT O4 2 P1 C5 CONECT C5 4 O4 C6 H4 H5 CONECT C6 4 C5 O5 C7 H6 CONECT O5 2 C6 C9 CONECT C7 4 C6 O6 C8 H7 CONECT O6 2 C7 H8 CONECT C8 4 C7 O7 C9 H9 CONECT O7 2 C8 H10 CONECT C9 4 O5 C8 C10 H11 CONECT C10 3 C1 C4 C9 CONECT N2 3 C2 H13 H14 CONECT O8 1 N3 CONECT O9 1 N3 CONECT N3 3 C3 O8 O9 CONECT H1 1 C4 CONECT HOP2 1 OP2 CONECT H4 1 C5 CONECT H5 1 C5 CONECT H6 1 C6 CONECT H7 1 C7 CONECT H8 1 O6 CONECT H9 1 C8 CONECT H10 1 O7 CONECT H11 1 C9 CONECT H13 1 N2 CONECT H14 1 N2 CONECT H15 1 O1 CONECT OP3 2 P1 HOP3 CONECT HOP3 1 OP3 END HET 50N 38 HETNAM 50N (1S)-1-(6-amino-2-hydroxy-5-nitropyridin-3-yl)-1,4-anhy HETNAM 2 50N dro-5-O-phosphono-D-ribitol FORMUL 50N C10 H14 N3 O10 P1