Total Synthesis of Sporolide B and 9-epi-Sporolide B
K. C. Nicolaou; Jianhua Wang; Yefeng Tang; Lorenzo Botta; Journal of the American Chemical Society 132 (2010) 11350–11363; doi:10.1021/ja1048994

data_4102834
_publ_section_title
;
 Total Synthesis of Sporolide B and 9-epi-Sporolide B
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11350
_journal_page_last               11363
_journal_paper_doi               10.1021/ja1048994
_journal_volume                  132
_journal_year                    2010
_chemical_formula_sum            'C24 H24 O8'
_chemical_formula_weight         440.43
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                87.51(3)
_cell_angle_beta                 77.91(3)
_cell_angle_gamma                89.79(3)
_cell_formula_units_Z            2
_cell_length_a                   8.0348(16)
_cell_length_b                   8.7388(17)
_cell_length_c                   14.579(3)
_cell_measurement_reflns_used    1675
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      22.0
_cell_measurement_theta_min      2.5
_cell_volume                     1000.0(4)
_computing_cell_refinement       'Bruker SAINT+'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT+'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0388
_diffrn_reflns_av_sigmaI/netI    0.0704
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            7305
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.43
_diffrn_standards_decay_%        1
_exptl_absorpt_coefficient_mu    0.110
_exptl_absorpt_correction_T_max  0.9794
_exptl_absorpt_correction_T_min  0.9656
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1999)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.463
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Parallelepiped
_exptl_crystal_F_000             464
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.226
_refine_diff_density_min         -0.268
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.985
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     292
_refine_ls_number_reflns         3513
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.985
_refine_ls_R_factor_all          0.1205
_refine_ls_R_factor_gt           0.0549
_refine_ls_shift/su_max          0.022
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0850P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1329
_refine_ls_wR_factor_ref         0.1625
_reflns_number_gt                1849
_reflns_number_total             3513
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja1048994_si_002.cif
_cod_data_source_block           kcjw
_cod_depositor_comments
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The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_original_cell_volume        1000.0(3)
_cod_database_code               4102834