Total synthesis of the proposed structure for spirofungin B: a reassignment of the stereochemistry.
Zanatta, Shannon D.; White, Jonathan M.; Rizzacasa, Mark A.; Organic letters 6 (2004) 1041–1044; doi:10.1021/ol049873e

data_1507126
_publ_section_title
;
 Total synthesis of the proposed structure for spirofungin B: a
 reassignment of the stereochemistry.
;
_journal_issue                   6
_journal_name_full               'Organic letters'
_journal_page_first              1041
_journal_page_last               1044
_journal_paper_doi               10.1021/ol049873e
_journal_volume                  6
_journal_year                    2004
_chemical_formula_sum            'C15 H24 Ho0 O3'
_chemical_formula_weight         252.34
_chemical_name_systematic
;
 ?
;
_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                 107.435(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5733(10)
_cell_length_b                   8.6107(8)
_cell_length_c                   17.3519(16)
_cell_measurement_reflns_used    2369
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      22.15
_cell_measurement_theta_min      2.37
_cell_volume                     1507.2(2)
_computing_cell_refinement       'Bruker SMART'
_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      295(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_reflns_av_R_equivalents  0.0544
_diffrn_reflns_av_sigmaI/netI    0.0555
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            7699
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.23
_exptl_absorpt_coefficient_mu    0.076
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.112
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             552
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.390
_refine_diff_density_min         -0.196
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.4(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.947
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     331
_refine_ls_number_reflns         4126
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.947
_refine_ls_R_factor_all          0.0592
_refine_ls_R_factor_gt           0.0478
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0538P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1040
_refine_ls_wR_factor_ref         0.1087
_reflns_number_gt                3227
_reflns_number_total             4126
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol049873esi20040121_074654.cif
_cod_data_source_block           jmwsz
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P2(1)   '
_cod_database_code               1507126