RESIDUE 2QU 26 CONECT C1 3 C2 C6 H1 CONECT C2 3 C1 C3 H2 CONECT C3 3 C2 N4 C12 CONECT N4 2 C3 C5 CONECT C5 3 N4 C6 C10 CONECT C6 3 C1 C5 N7 CONECT N7 2 C6 C8 CONECT C8 3 N7 N9 H3 CONECT N9 2 C8 C10 CONECT C10 3 C5 N9 N11 CONECT N11 3 C10 H4 H5 CONECT C12 3 C3 C13 C17 CONECT C13 3 C12 C14 H6 CONECT C14 3 C13 N15 H7 CONECT N15 2 C14 C16 CONECT C16 3 N15 C17 F18 CONECT C17 3 C12 C16 H8 CONECT F18 1 C16 CONECT H1 1 C1 CONECT H2 1 C2 CONECT H3 1 C8 CONECT H4 1 N11 CONECT H5 1 N11 CONECT H6 1 C13 CONECT H7 1 C14 CONECT H8 1 C17 END HET 2QU 26 HETNAM 2QU 6-(2-fluoropyridin-4-yl)pyrido[3,2-d]pyrimidin-4-amine FORMUL 2QU C12 H8 F1 N5