Studies on the Total Synthesis of Lactonamycin: Construction of Model ABCD Ring Systems
David A. Henderson; Philip N. Collier; Gregoire Pavé; Paula Rzepa; Andrew J. P. White; Jeremy N. Burrows; Anthony G. M. Barrett; Journal of Organic Chemistry 71 (2006) 2434–2444; doi:10.1021/jo052637c

data_4021579
_publ_section_title
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 Studies on the Total Synthesis of Lactonamycin:
 Construction of Model ABCD Ring Systems
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_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              2434
_journal_page_last               2444
_journal_paper_doi               10.1021/jo052637c
_journal_volume                  71
_journal_year                    2006
_chemical_formula_sum            'C23 H28 O7'
_chemical_formula_weight         416.45
_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                87.23(3)
_cell_angle_beta                 84.82(3)
_cell_angle_gamma                69.79(3)
_cell_formula_units_Z            2
_cell_length_a                   9.671(3)
_cell_length_b                   10.877(4)
_cell_length_c                   11.586(4)
_cell_measurement_reflns_used    39
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.97
_cell_measurement_theta_min      11.97
_cell_volume                     1138.8(6)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_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 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0896
_diffrn_reflns_av_sigmaI/netI    0.0608
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            3586
_diffrn_reflns_theta_full        59.99
_diffrn_reflns_theta_max         59.99
_diffrn_reflns_theta_min         4.33
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.740
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.214
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             444
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.243
_refine_diff_density_min         -0.365
_refine_diff_density_rms         0.062
_refine_ls_extinction_coef       0.059(6)
_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   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     276
_refine_ls_number_reflns         3357
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0963
_refine_ls_R_factor_gt           0.0732
_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^)+(0.1432P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1972
_refine_ls_wR_factor_ref         0.2168
_reflns_number_gt                2434
_reflns_number_total             3357
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo052637csi20051223_025640_2.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_enum 1527 2010-12-29 10:47:43Z saulius 
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_cod_database_code               4021579