Total synthesis of (+)-decursivine.
Sun, Deqian; Zhao, Qiwu; Li, Chaozhong; Organic letters 13 (2011) 5302–5305; doi:10.1021/ol2021669

data_1502492
_publ_section_title
;
 Total synthesis of (+)-decursivine.
;
_journal_issue                   19
_journal_name_full               'Organic letters'
_journal_page_first              5302
_journal_page_last               5305
_journal_paper_doi               10.1021/ol2021669
_journal_volume                  13
_journal_year                    2011
_chemical_absolute_configuration ad
_chemical_formula_sum            'C40 H40 N2 O9 S'
_chemical_formula_weight         724.80
_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                   12.793(16)
_cell_length_b                   13.184(16)
_cell_length_c                   21.65(3)
_cell_measurement_reflns_used    683
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.972
_cell_measurement_theta_min      4.781
_cell_volume                     3652(8)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.1464
_diffrn_reflns_av_sigmaI/netI    0.1628
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            19180
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         1.81
_exptl_absorpt_coefficient_mu    0.148
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.4563
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.318
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             1528
_exptl_crystal_size_max          0.210
_exptl_crystal_size_mid          0.197
_exptl_crystal_size_min          0.134
_refine_diff_density_max         0.190
_refine_diff_density_min         -0.330
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.13(17)
_refine_ls_extinction_coef       0.00049(12)
_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   0.842
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     474
_refine_ls_number_reflns         6774
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.846
_refine_ls_R_factor_all          0.2325
_refine_ls_R_factor_gt           0.0664
_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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0868
_refine_ls_wR_factor_ref         0.1368
_reflns_number_gt                2391
_reflns_number_total             6774
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol2021669_si_002.cif
_cod_data_source_block           cd201267
_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.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1502492