Total synthesis of (-)-blepharocalyxin D.
Ko, Haye Min; Lee, Dong Gil; Kim, Min Ah; Kim, Hak Joong; Park, Jaejoon; Lah, Myoung Soo; Lee, Eun; Organic letters 9 (2007) 141–144; doi:10.1021/ol0627956

data_1505263
_publ_section_title
;
 Total synthesis of (-)-blepharocalyxin D.
;
_journal_issue                   1
_journal_name_full               'Organic letters'
_journal_page_first              141
_journal_page_last               144
_journal_paper_doi               10.1021/ol0627956
_journal_volume                  9
_journal_year                    2007
_chemical_formula_sum            'C42 H48 O6'
_chemical_formula_weight         648.80
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.0896(11)
_cell_length_b                   22.401(4)
_cell_length_c                   26.176(5)
_cell_measurement_reflns_used    8130
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.234
_cell_measurement_theta_min      2.391
_cell_volume                     3570.8(11)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    ORTEP3
_computing_publication_material  WinGX
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       '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  0.0461
_diffrn_reflns_av_sigmaI/netI    0.0728
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            21341
_diffrn_reflns_theta_full        28.34
_diffrn_reflns_theta_max         28.34
_diffrn_reflns_theta_min         1.20
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.9843
_exptl_absorpt_correction_T_min  0.9652
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.207
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1392
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.43
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.258
_refine_diff_density_min         -0.245
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.2(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     471
_refine_ls_number_reflns         8308
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.1181
_refine_ls_R_factor_gt           0.0691
_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^)+(0.0421P)^2^+1.4224P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1265
_refine_ls_wR_factor_ref         0.1417
_reflns_number_gt                5317
_reflns_number_total             8308
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol0627956si20061117_035253.cif
_cod_data_source_block           o6_16or
_cod_depositor_comments
;
The following automatic conversions were performed:

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

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' 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_cell_volume        3570.7(11)
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1505263