Photochemical Synthesis of 3-Azabicyclo[3.2.0]heptanes: Advanced Building Blocks for Drug Discovery.
Denisenko, Aleksandr V.; Druzhenko, Tetiana; Skalenko, Yevhen; Samoilenko, Maryna; Grygorenko, Oleksandr O.; Zozulya, Sergey; Mykhailiuk, Pavel K.; The Journal of organic chemistry 82 (2017) 9627–9636; doi:10.1021/acs.joc.7b01678

data_4033051
_publ_section_title
;
 Photochemical Synthesis of 3-Azabicyclo[3.2.0]heptanes: Advanced Building
 Blocks for Drug Discovery.
;
_journal_issue                   18
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              9627
_journal_page_last               9636
_journal_paper_doi               10.1021/acs.joc.7b01678
_journal_volume                  82
_journal_year                    2017
_chemical_formula_sum            'C20 H21 N O'
_chemical_formula_weight         291.38
_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   geom
_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                   8.366(3)
_cell_length_b                   10.586(4)
_cell_length_c                   18.446(6)
_cell_measurement_reflns_used    321
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      17.6
_cell_measurement_theta_min      3.3
_cell_volume                     1633.6(10)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 16.1827
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'Xcalibur, Sapphire3'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.2363
_diffrn_reflns_av_unetI/netI     0.1596
_diffrn_reflns_Laue_measured_fraction_full 0.973
_diffrn_reflns_Laue_measured_fraction_max 0.973
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            15366
_diffrn_reflns_point_group_measured_fraction_full 0.940
_diffrn_reflns_point_group_measured_fraction_max 0.940
_diffrn_reflns_theta_full        24.999
_diffrn_reflns_theta_max         24.999
_diffrn_reflns_theta_min         3.104
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.072
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.185
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.150
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.080
_refine_diff_density_max         0.101
_refine_diff_density_min         -0.103
_refine_diff_density_rms         0.029
_refine_ls_abs_structure_details
;
 Flack x determined using 176 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -5.1(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.809
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         2690
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.809
_refine_ls_R_factor_all          0.2447
_refine_ls_R_factor_gt           0.0667
_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^)+(0.0215P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1175
_refine_ls_wR_factor_ref         0.1674
_reflns_Friedel_coverage         0.664
_reflns_Friedel_fraction_full    0.893
_reflns_Friedel_fraction_max     0.893
_reflns_number_gt                805
_reflns_number_total             2690
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo7b01678_si_002.cif
_cod_data_source_block           t320_13
_cod_original_cell_volume        1633.6(9)
_cod_database_code               4033051
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.989
_shelx_estimated_absorpt_t_max   0.994
_shelx_hkl_checksum              13869