Design and process study of chiral separation of (2S,4S)-1-(tert-butoxy carbonyl)-4-(methoxymethyl) pyrrolidine-2-carboxylic acid for green manufacturing
Ge, Shuwang; Fu, Mingwei; Gu, Dihai; Wei, Lai; Qian, Kun; Rui, Qi; Ma, Yan; Li, Liang; Wang, Huaiqiu; Li, Lingchao; Ge, Min; Wang, Yihong; Green Chemistry 26 (2024) 2673–2683; doi:10.1039/D3GC04435A

data_7248016
_publ_section_title
;
 Design and process study of chiral separation of (2S,4S)-1-(tert-butoxy
 carbonyl)-4-(methoxymethyl) pyrrolidine-2-carboxylic acid for green
 manufacturing
;
_journal_issue                   5
_journal_name_full               'Green Chemistry'
_journal_page_first              2673
_journal_page_last               2683
_journal_paper_doi               10.1039/D3GC04435A
_journal_volume                  26
_journal_year                    2024
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C12 H21 N O5'
_chemical_formula_sum            'C12 H21 N O5'
_chemical_formula_weight         259.30
_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
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2023-06-26 deposited with the CCDC.	2024-01-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.3761(8)
_cell_length_b                   9.9644(12)
_cell_length_c                   22.622(3)
_cell_measurement_reflns_used    2788
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.50
_cell_measurement_theta_min      3.32
_cell_volume                     1437.3(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 10.42
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker D8 QUEST PHOTON 100'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0345
_diffrn_reflns_av_unetI/netI     0.0581
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            7203
_diffrn_reflns_point_group_measured_fraction_full 0.973
_diffrn_reflns_point_group_measured_fraction_max 0.975
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.446
_diffrn_reflns_theta_min         2.233
_diffrn_source.source            'Ius 2.0'
_diffrn_source.type              microfocus
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6344
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.198
_exptl_crystal_description       block
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.180
_refine_diff_density_max         0.163
_refine_diff_density_min         -0.135
_refine_diff_density_rms         0.030
_refine_ls_abs_structure_details
;
 Flack x determined using 588 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.4(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.079
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     331
_refine_ls_number_reflns         3202
_refine_ls_number_restraints     566
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.1084
_refine_ls_R_factor_gt           0.0503
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0485P)^2^+0.0904P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1033
_refine_ls_wR_factor_ref         0.1204
_reflns_Friedel_coverage         0.681
_reflns_Friedel_fraction_full    0.942
_reflns_Friedel_fraction_max     0.948
_reflns_number_gt                1918
_reflns_number_total             3202
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3gc04435a3.cif
_cod_data_source_block           GSW_TBMP
_cod_depositor_comments
'Adding full bibliography for 7248016--7248017.cif.'
_cod_database_code               7248016
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.980
_shelx_estimated_absorpt_t_max   0.984
_shelx_res_checksum              69793