Evaluation of the pharmacophoric motif of the caged Garcinia xanthones
Chantarasriwong, Oraphin; Cho, Woo Cheal; Batova, Ayse; Chavasiri, Warinthorn; Moore, Curtis; Rheingold, Arnold L.; Theodorakis, Emmanuel A.; Organic & Biomolecular Chemistry 7 (2009) 4886–4894; doi:10.1039/b913496d

data_7150768
_publ_section_title
;
 Evaluation of the pharmacophoric motif of the caged Garcinia xanthones
;
_journal_issue                   23
_journal_name_full               'Organic &amp; Biomolecular Chemistry'
_journal_page_first              4886
_journal_page_last               4894
_journal_paper_doi               10.1039/b913496d
_journal_volume                  7
_journal_year                    2009
_chemical_formula_sum            'C20 H26 O5'
_chemical_formula_weight         346.41
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 92.4170(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.0045(2)
_cell_length_b                   13.2751(4)
_cell_length_c                   16.4708(5)
_cell_measurement_reflns_used    9946
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      68.16
_cell_measurement_theta_min      3.33
_cell_volume                     1748.64(9)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_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, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.0209
_diffrn_reflns_av_sigmaI/netI    0.0144
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            13879
_diffrn_reflns_theta_full        60.00
_diffrn_reflns_theta_max         68.15
_diffrn_reflns_theta_min         4.28
_exptl_absorpt_coefficient_mu    0.763
_exptl_absorpt_correction_T_max  0.919
_exptl_absorpt_correction_T_min  0.791
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.316
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.293
_refine_diff_density_min         -0.185
_refine_diff_density_rms         0.035
_refine_ls_extinction_coef       0.0044(2)
_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   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         3087
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0322
_refine_ls_R_factor_gt           0.0315
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0282P)^2^+0.9146P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0739
_refine_ls_wR_factor_ref         0.0744
_reflns_number_gt                3004
_reflns_number_total             3087
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b913496d.txt
_cod_data_source_block           theod35
_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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7150768