Total Synthesis of Rubriflordilactone A.
Li, Jian; Yang, Peng; Yao, Ming; Deng, Jun; Li, Ang; Journal of the American Chemical Society  (2014) 141113160240003–; doi:10.1021/ja5092563

data_4122933
_publ_section_title
;
 Total Synthesis of Rubriflordilactone A.
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_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              141113160240003
_journal_paper_doi               10.1021/ja5092563
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_formula_sum            'C17 H27 Br O4 Si'
_chemical_formula_weight         403.39
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 105.968(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.2488(9)
_cell_length_b                   11.4291(13)
_cell_length_c                   12.5189(15)
_cell_measurement_reflns_used    1542
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      37.889
_cell_measurement_theta_min      4.915
_cell_volume                     997.1(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0392
_diffrn_reflns_av_sigmaI/netI    0.0797
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6034
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    2.137
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.0842
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.344
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             420
_exptl_crystal_size_max          0.231
_exptl_crystal_size_mid          0.175
_exptl_crystal_size_min          0.112
_refine_diff_density_max         0.533
_refine_diff_density_min         -0.404
_refine_diff_density_rms         0.051
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.032(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     222
_refine_ls_number_reflns         3629
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.0824
_refine_ls_R_factor_gt           0.0531
_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^)+(0.0679P)^2^+0.0603P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1356
_refine_ls_wR_factor_ref         0.1521
_reflns_number_gt                2377
_reflns_number_total             3629
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja5092563_si_003.cif
_cod_data_source_block           cd213769
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2935 2014-11-11 08:27:57Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               4122933