data_5000252 _chemical_formula_sum 'C26 H40 N2' _chemical_formula_moiety ; C26 H40 N2 ; _journal_volume 35 _journal_year 1994 _journal_page_first 4383 _journal_name_full 'Tetrahedron Lett.' loop_ _publ_author_name "J.Kobayashi" "M.Tsuda" "N.Kawasaki" "K.Matsumoto" "T.Adachi" _chemical_name_systematic ; Keramaphidin B ; _chemical_melting_point 404.15 _cell_volume 4390.075 _exptl_crystal_colour 'colorless' _exptl_crystal_density_diffrn 1.15 _diffrn_ambient_temperature ? _refine_ls_R_factor_gt 0.052 _refine_ls_wR_factor_gt 0.052 _symmetry_cell_setting orthorhombic _symmetry_space_group_name_H-M 'P b c a' _symmetry_Int_Tables_number 61 loop_ _symmetry_equiv_pos_site_id _symmetry_equiv_pos_as_xyz 1 x,y,z 2 1/2-x,1/2+y,z 3 x,1/2-y,1/2+z 4 1/2-x,-y,1/2+z 5 -x,-y,-z 6 -1/2+x,-1/2-y,-z 7 -x,-1/2+y,-1/2-z 8 -1/2+x,y,-1/2-z _cell_length_a 16.168(4) _cell_length_b 21.497(5) _cell_length_c 12.631(4) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 8 loop_ _atom_type_symbol _atom_type_radius_bond C 0.68 H 0.23 N 0.68 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z C1 C 0.0399(1) -0.1297(1) -0.1124(2) N1 N 0.0014(1) -0.15072(8) -0.2121(1) C2 C -0.0146(2) -0.2180(1) -0.2089(2) C3 C 0.0186(1) -0.2450(1) -0.1036(2) C4 C 0.1125(1) -0.23230(9) -0.0991(2) C5 C 0.1546(1) -0.2596(1) -0.0013(2) C6 C 0.2437(1) -0.2371(1) 0.0070(2) N2 N 0.2504(1) -0.16859(9) 0.0075(1) C7 C 0.1717(1) -0.1366(1) -0.0089(2) C8 C 0.1270(1) -0.16030(9) -0.1073(2) C9 C -0.0139(1) -0.1492(1) -0.0198(2) C10 C -0.0247(1) -0.2106(1) -0.0165(2) C11 C -0.0684(1) -0.1130(1) -0.2478(2) C12 C -0.0743(2) -0.1113(1) -0.3685(2) C13 C 0.0093(2) -0.1023(1) -0.4230(2) C14 C 0.0577(2) -0.0451(1) -0.3879(2) C15 C 0.1482(2) -0.0497(1) -0.4153(2) C16 C 0.2080(2) -0.0649(1) -0.3478(2) C17 C 0.1957(2) -0.0779(1) -0.2318(2) C18 C 0.1772(1) -0.1468(1) -0.2089(2) C19 C 0.2965(1) -0.1441(1) 0.0975(2) C20 C 0.2619(2) -0.1575(1) 0.2093(2) C21 C 0.2466(2) -0.0997(1) 0.2766(2) C22 C 0.1670(2) -0.0648(1) 0.2474(2) C23 C 0.0914(2) -0.1024(1) 0.2714(2) C24 C 0.0202(2) -0.1028(1) 0.2201(2) C25 C -0.0047(2) -0.0658(1) 0.1254(2) C26 C -0.0587(1) -0.1017(1) 0.0464(2) H1 H 0.045(2) -0.083(1) -0.115(2) H2 H 0.011(2) -0.240(1) -0.273(2) H3 H -0.074(2) -0.228(1) -0.212(2) H4 H 0.006(2) -0.290(1) -0.097(2) H5 H 0.138(2) -0.252(1) -0.164(2) H6 H 0.154(2) -0.307(1) -0.007(2) H7 H 0.122(2) -0.247(1) 0.065(2) H8 H 0.280(2) -0.254(1) -0.057(2) H9 H 0.270(2) -0.254(1) 0.074(2) H10 H 0.135(2) -0.141(1) 0.056(2) H11 H 0.186(2) -0.087(1) -0.017(2) H12 H -0.063(2) -0.232(1) 0.036(2) H13 H -0.058(2) -0.068(1) -0.225(2) H14 H -0.127(2) -0.129(1) -0.212(2) H15 H -0.104(2) -0.153(2) -0.395(2) H16 H -0.112(2) -0.075(1) -0.389(2) H17 H 0.044(2) -0.141(1) -0.409(2) H18 H 0.001(2) -0.101(1) -0.506(3) H19 H 0.051(2) -0.039(1) -0.309(3) H20 H 0.036(2) -0.007(2) -0.422(2) H21 H 0.167(2) -0.045(1) -0.493(2) H22 H 0.267(2) -0.072(1) -0.378(2) H23 H 0.246(2) -0.064(1) -0.186(2) H24 H 0.148(2) -0.051(1) -0.200(2) H25 H 0.144(2) -0.166(1) -0.269(2) H26 H 0.232(2) -0.172(1) -0.204(2) H27 H 0.301(2) -0.095(1) 0.087(2) H28 H 0.355(2) -0.161(1) 0.092(2) H29 H 0.299(2) -0.185(1) 0.246(2) H30 H 0.205(2) -0.182(1) 0.198(2) H31 H 0.243(2) -0.111(1) 0.358(2) H32 H 0.296(2) -0.070(1) 0.271(2) H33 H 0.167(2) -0.052(1) 0.169(2) H34 H 0.162(2) -0.025(1) 0.294(2) H35 H 0.097(2) -0.131(1) 0.340(2) H36 H -0.025(2) -0.130(1) 0.248(2) H37 H -0.036(2) -0.030(1) 0.149(2) H38 H 0.045(2) -0.049(1) 0.091(2) H39 H -0.086(2) -0.072(1) -0.002(2) H40 H -0.103(2) -0.123(1) 0.087(2)