Comparison of disaccharide donors for heparan sulfate synthesis: uronic acids vs. their pyranose equivalents.
Sheppard, Daniel J.; Cameron, Scott A.; Tyler, Peter C.; Schwörer, Ralf; Organic & biomolecular chemistry 18 (2020) 4728–4733; doi:10.1039/d0ob00671h

data_7157536
_publ_section_title
;
 Comparison of disaccharide donors for heparan sulfate synthesis: uronic
 acids vs. their pyranose equivalents.
;
_journal_issue                   25
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              4728
_journal_page_last               4733
_journal_paper_doi               10.1039/d0ob00671h
_journal_volume                  18
_journal_year                    2020
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C43 H45 N3 O14'
_chemical_formula_sum            'C43 H45 N3 O14'
_chemical_formula_weight         827.82
_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'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2020-03-03 deposited with the CCDC.	2020-06-08 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.0833(2)
_cell_length_b                   18.7876(7)
_cell_length_c                   26.8116(12)
_cell_measurement_reflns_used    10222
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      72.7210
_cell_measurement_theta_min      4.6320
_cell_volume                     4071.8(3)
_computing_cell_refinement       'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_data_collection       'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_data_reduction        'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXS-2016/6 (Sheldrick, 2016)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      120.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.0856
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, EosS2'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0883
_diffrn_reflns_av_unetI/netI     0.0460
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.982
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            64624
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         74.658
_diffrn_reflns_theta_min         4.051
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.852
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.57480
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.40.53 (Rigaku Oxford Diffraction, 2019)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.350
_exptl_crystal_description       rod
_exptl_crystal_F_000             1744
_exptl_crystal_size_max          0.259
_exptl_crystal_size_mid          0.034
_exptl_crystal_size_min          0.025
_refine_diff_density_max         0.292
_refine_diff_density_min         -0.217
_refine_diff_density_rms         0.051
_refine_ls_abs_structure_details
;
 Flack x determined using 2388 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.06(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     548
_refine_ls_number_reflns         8176
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0721
_refine_ls_R_factor_gt           0.0564
_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^)+(0.0743P)^2^+0.8821P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1354
_refine_ls_wR_factor_ref         0.1464
_reflns_Friedel_coverage         0.776
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.978
_reflns_number_gt                6651
_reflns_number_total             8176
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0ob00671h2.cif
_cod_data_source_block           shelx_CCDC2
_cod_depositor_comments
'Adding full bibliography for 7157534--7157536.cif.'
_cod_database_code               7157536
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.810
_shelx_estimated_absorpt_t_max   0.979
_shelx_res_checksum              45217