Immunosuppressive Polyketides from Mantis-Associated Daldinia eschscholzii
Ying L. Zhang; Jie Zhang; Nan Jiang; Yan H. Lu; Lu Wang; Su H. Xu; Wei Wang; Gao F. Zhang; Qiang Xu; Hui M. Ge; Jing Ma; Yong C. Song; Ren X. Tan; Journal of the American Chemical Society 133 (2011) 5931–5940; doi:10.1021/ja110932p

data_4105954
_publ_section_title
;
 Immunosuppressive Polyketides from Mantis-Associated Daldinia
 eschscholzii
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5931
_journal_page_last               5940
_journal_paper_doi               10.1021/ja110932p
_journal_volume                  133
_journal_year                    2011
_chemical_formula_sum            'C30 H20 O8'
_chemical_formula_weight         508.46
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.302(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.4805(2)
_cell_length_b                   24.5401(7)
_cell_length_c                   12.4338(3)
_cell_measurement_reflns_used    2168
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.61
_cell_measurement_theta_min      1.66
_cell_volume                     2263.99(10)
_computing_cell_refinement       'Siemens SMART & SAINT'
_computing_data_collection       'Siemens SMART'
_computing_data_reduction        'Siemens XPREP'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Siemens SHELXTL'
_computing_structure_solution    'Siemens SHELXTL'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0538
_diffrn_reflns_av_sigmaI/netI    0.0677
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            18234
_diffrn_reflns_theta_full        27.61
_diffrn_reflns_theta_max         27.61
_diffrn_reflns_theta_min         1.66
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.109
_exptl_absorpt_correction_T_max  .996
_exptl_absorpt_correction_T_min  .977
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.492
_exptl_crystal_density_meas      1.492
_exptl_crystal_description       sheet
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.312
_exptl_crystal_size_mid          0.176
_exptl_crystal_size_min          0.035
_refine_diff_density_max         0.228
_refine_diff_density_min         -0.200
_refine_diff_density_rms         0.045
_refine_ls_extinction_coef       0.0014(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     350
_refine_ls_number_reflns         5164
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_gt           0.0612
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0898P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1530
_refine_ls_wR_factor_ref         0.1859
_reflns_number_gt                2619
_reflns_number_total             5164
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja110932p_si_006.cif
_cod_data_source_block           Compound5
_cod_database_code               4105954
_refine_ls_r_factor_ref          0.1349