Late Stage Azidation of Complex Molecules.
Karimov, Rashad R.; Sharma, Ankit; Hartwig, John F.; ACS central science 2 (2016) 715–724; doi:10.1021/acscentsci.6b00214

data_4516775
_publ_section_title
;
 Late Stage Azidation of Complex Molecules.
;
_journal_issue                   10
_journal_name_full               'ACS central science'
_journal_page_first              715
_journal_page_last               724
_journal_paper_doi               10.1021/acscentsci.6b00214
_journal_volume                  2
_journal_year                    2016
_chemical_absolute_configuration ad
_chemical_formula_sum            'C22 H26 N6 O7'
_chemical_formula_weight         486.49
_chemical_name_common            azide_4c
_chemical_name_systematic        azide_4c
_space_group.centring_type       primitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 103.0580(10)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   8.1836(2)
_cell_length_b                   10.5248(2)
_cell_length_c                   13.9957(3)
_cell_measurement_reflns_used    8061
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      68.35
_cell_measurement_theta_min      3.24
_cell_volume                     1174.29(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    ORTEP-32
_computing_publication_material  WinGX
_computing_structure_refinement  SHELXL-2014
_computing_structure_solution    SHELXT-2014
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 8.366
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0530
_diffrn_reflns_av_unetI/netI     0.0494
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_refln_scan_rate          1
_diffrn_refln_scan_width         2.0
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            15676
_diffrn_reflns_point_group_measured_fraction_full 0.987
_diffrn_reflns_point_group_measured_fraction_max 0.982
_diffrn_reflns_theta_full        67.000
_diffrn_reflns_theta_max         68.381
_diffrn_reflns_theta_min         3.241
_diffrn_source                   'microfocus rotating anode'
_exptl_absorpt_coefficient_mu    0.879
_exptl_absorpt_correction_T_max  0.929
_exptl_absorpt_correction_T_min  0.807
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.376
_exptl_crystal_description       plate
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.070
_exptl_crystal_size_mid          0.060
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.149
_refine_diff_density_min         -0.187
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details
; 
 Flack x determined using 1577 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.11(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     335
_refine_ls_number_reflns         4236
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0439
_refine_ls_R_factor_gt           0.0387
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0474P)^2^+0.1602P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0963
_refine_ls_wR_factor_ref         0.1005
_reflns_Friedel_coverage         0.861
_reflns_Friedel_fraction_full    0.974
_reflns_Friedel_fraction_max     0.965
_reflns_number_gt                3826
_reflns_number_total             4236
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            oc6b00214_si_006.cif
_cod_data_source_block           azide4c
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4516775
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.941
_shelx_estimated_absorpt_t_max   0.974
_shelx_res_checksum              7680
_shelx_hkl_checksum              67655