Hydrogen-Bonding-Assisted Exogenous Nucleophilic Reagent Effect for β-Selective Glycosylation of Rare 3-Amino Sugars.
Zeng, Jing; Wang, Ruobin; Zhang, Shuxin; Fang, Jing; Liu, Shanshan; Sun, Guangfei; Xu, Bingbing; Xiao, Ying; Fu, Dengxian; Zhang, Wenqi; Hu, Yixin; Wan, Qian; Journal of the American Chemical Society 141 (2019) 8509–8515; doi:10.1021/jacs.9b01862

data_4127265
_publ_section_title
;
 Hydrogen-Bonding-Assisted Exogenous Nucleophilic Reagent Effect for
 \b-Selective Glycosylation of Rare 3-Amino Sugars.
;
_journal_issue                   21
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8509
_journal_page_last               8515
_journal_paper_doi               10.1021/jacs.9b01862
_journal_volume                  141
_journal_year                    2019
_chemical_absolute_configuration s
_chemical_formula_sum            'C14 H18 N2 O8 S'
_chemical_formula_weight         374.36
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.6915(3)
_cell_length_b                   13.4945(6)
_cell_length_c                   16.2687(7)
_cell_measurement_reflns_used    9944
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      68.93
_cell_measurement_theta_min      6.37
_cell_volume                     1688.58(12)
_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-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.980
_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  0.0600
_diffrn_reflns_av_unetI/netI     0.0535
_diffrn_reflns_Laue_measured_fraction_full 0.981
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            9214
_diffrn_reflns_point_group_measured_fraction_full 0.969
_diffrn_reflns_point_group_measured_fraction_max 0.968
_diffrn_reflns_theta_full        64.982
_diffrn_reflns_theta_max         64.982
_diffrn_reflns_theta_min         6.365
_exptl_absorpt_coefficient_mu    2.136
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.473
_exptl_crystal_description       block
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.346
_refine_diff_density_min         -0.514
_refine_diff_density_rms         0.094
_refine_ls_abs_structure_details
; 
 Flack x determined using 1116 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.109(8)
_refine_ls_extinction_coef       0.046(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.125
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         2770
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.125
_refine_ls_R_factor_all          0.0469
_refine_ls_R_factor_gt           0.0450
_refine_ls_shift/su_max          0.033
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0815P)^2^+0.2726P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1146
_refine_ls_wR_factor_ref         0.1211
_reflns_Friedel_coverage         0.701
_reflns_Friedel_fraction_full    0.952
_reflns_Friedel_fraction_max     0.952
_reflns_number_gt                2752
_reflns_number_total             2770
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b01862_si_002.cif
_cod_data_source_block           cu_170508h_0m
_cod_depositor_comments          'Adding full bibliography for 4127265.cif.'
_cod_database_code               4127265
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.567
_shelx_estimated_absorpt_t_max   0.675
_shelx_res_checksum              73457
_shelx_hkl_checksum              11976