A concise synthesis of ent-Cholesterol.
Belani, Jitendra D.; Rychnovsky, Scott D.; The Journal of organic chemistry 73 (2008) 2768–2773; doi:10.1021/jo702694g

data_4029563
_publ_section_title
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 A concise synthesis of ent-Cholesterol.
;
_journal_issue                   7
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              2768
_journal_page_last               2773
_journal_paper_doi               10.1021/jo702694g
_journal_volume                  73
_journal_year                    2008
_chemical_formula_sum            'C25 H38 O3 S'
_chemical_formula_weight         418.61
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXTL
_cell_angle_alpha                90.00
_cell_angle_beta                 100.200(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.2207(7)
_cell_length_b                   10.1241(9)
_cell_length_c                   14.7603(13)
_cell_measurement_temperature    163(2)
_cell_volume                     1209.04(18)
_computing_cell_refinement       'Bruker SMART/SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      163(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0231
_diffrn_reflns_av_sigmaI/netI    0.0307
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            13356
_diffrn_reflns_theta_full        28.31
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         2.45
_diffrn_standards_decay_%        '< 1.0'
_diffrn_standards_interval_count 'initial 50 frames recollected'
_diffrn_standards_number         '50 frames'
_exptl_absorpt_coefficient_mu    0.156
_exptl_absorpt_correction_T_max  0.9877
_exptl_absorpt_correction_T_min  0.9432
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.150
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             456
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.313
_refine_diff_density_min         -0.198
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     414
_refine_ls_number_reflns         5733
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0339
_refine_ls_R_factor_gt           0.0299
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0502P)^2^+0.0333P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0747
_refine_ls_wR_factor_ref         0.0772
_reflns_number_gt                5357
_reflns_number_total             5733
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo702694g-file002.cif
_cod_data_source_block           sdr18
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/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 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'n/a' 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 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               4029563