Diversity-driven and facile 1,3-dipolar cycloaddition to access dispirooxindole-imidazolidine scaffolds
Qian, Yu-lun; Xia, Peng-Ju; Li, Jun; Zhao, Qinglan; Xiao, Jun-An; Xiang, Haoyue; Yang, Hua; Org. Biomol. Chem.  (2017) –; doi:10.1039/C7OB02319G

data_7155914
_publ_section_title
;
 Diversity-driven and facile 1,3-dipolar cycloaddition to access
 dispirooxindole-imidazolidine scaffolds
;
_journal_name_full               'Org. Biomol. Chem.'
_journal_paper_doi               10.1039/C7OB02319G
_journal_year                    2017
_chemical_formula_sum            'C43 H40 N4 O4'
_chemical_formula_weight         676.82
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2017-08-27 deposited with the CCDC.
2017-10-04 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.078(2)
_cell_length_b                   17.996(2)
_cell_length_c                   20.823(3)
_cell_measurement_reflns_used    6780
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      1.84
_cell_volume                     7149.1(15)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(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  0.0376
_diffrn_reflns_av_sigmaI/netI    0.0568
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            31791
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         1.84
_exptl_absorpt_coefficient_mu    0.081
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.258
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BAR
_exptl_crystal_F_000             2864
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.384
_refine_diff_density_min         -0.386
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.007
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     460
_refine_ls_number_reflns         6780
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.007
_refine_ls_R_factor_all          0.1258
_refine_ls_R_factor_gt           0.0531
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0745P)^2^+0.0845P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1222
_refine_ls_wR_factor_ref         0.1495
_reflns_number_gt                3492
_reflns_number_total             6780
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7ob02319g2.cif
_cod_data_source_block           ja
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

2018-02-03
Z value and formula changed from original absurd values
                 miguel
;
_cod_original_cell_volume        7149.0(15)
_cod_original_sg_symbol_H-M      Pbca
_cod_original_formula_sum        'C2.41 H2.24 N0.22 O0.22'
_cod_original_formula_units_Z    143
_cod_original_formula_weight     37.86
_cod_database_code               7155914