Diastereoselective synthesis of spirocyclic isoxazolo[5,4-c]pyrrolo[2,1-a]isoquinolines via cascade double [3 + 2]cycloadditions.
Liu, Dan; Sun, Jing; Zhang, Yu; Yan, Chao-Guo; Organic & biomolecular chemistry 17 (2019) 8008–8013; doi:10.1039/c9ob01474h

data_7157026
_publ_section_title
;
 Diastereoselective synthesis of spirocyclic
 isoxazolo[5,4-c]pyrrolo[2,1-a]isoquinolines via cascade double [3 +
 2]cycloadditions.
;
_journal_issue                   34
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              8008
_journal_page_last               8013
_journal_paper_doi               10.1039/c9ob01474h
_journal_volume                  17
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C37 H31 N5 O3'
_chemical_formula_sum            'C37 H31 N5 O3'
_chemical_formula_weight         593.67
_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'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-07-01 deposited with the CCDC.    2019-08-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 106.606(7)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   11.932(2)
_cell_length_b                   7.8696(17)
_cell_length_c                   16.941(4)
_cell_measurement_reflns_used    4048
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      22.04
_cell_measurement_theta_min      2.45
_cell_volume                     1524.4(6)
_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      273(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0865
_diffrn_reflns_av_unetI/netI     0.1374
_diffrn_reflns_Laue_measured_fraction_full 0.991
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            12951
_diffrn_reflns_point_group_measured_fraction_full 0.927
_diffrn_reflns_point_group_measured_fraction_max 0.924
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.998
_diffrn_reflns_theta_min         1.862
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.983
_exptl_absorpt_correction_T_min  0.980
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.293
_exptl_crystal_description       block
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.220
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.440
_refine_diff_density_min         -0.416
_refine_diff_density_rms         0.105
_refine_ls_abs_structure_details
; 
 Flack x determined using 967 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.972
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     409
_refine_ls_number_reflns         5536
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.972
_refine_ls_R_factor_all          0.1509
_refine_ls_R_factor_gt           0.0816
_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^)+(0.1622P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2124
_refine_ls_wR_factor_ref         0.2581
_reflns_Friedel_coverage         0.731
_reflns_Friedel_fraction_full    0.852
_reflns_Friedel_fraction_max     0.845
_reflns_number_gt                3213
_reflns_number_total             5536
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ob01474h2.cif
_cod_data_source_block           3f
_cod_depositor_comments
'Adding full bibliography for 7157016--7157029.cif.'
_cod_database_code               7157026
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.980
_shelx_estimated_absorpt_t_max   0.983
_shelx_res_checksum              1883