# Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry.
# This journal is © The Royal Society of Chemistry 2019

####################################################################### 
# 
# This file contains crystal structure data downloaded from the 
# Cambridge Structural Database (CSD) hosted by the Cambridge 
# Crystallographic Data Centre (CCDC).
# 
# Full information about CCDC data access policies and citation 
# guidelines are available at http://www.ccdc.cam.ac.uk/access/V1 
# 
# Audit and citation data items may have been added by the CCDC. 
# Please retain this information to preserve the provenance of 
# this file and to allow appropriate attribution of the data. 
# 
#######################################################################

data_X
_database_code_depnum_ccdc_archive 'CCDC 1900697'
loop_
_audit_author_name
_audit_author_address
'Li Sun'
;China Pharmaceutical University
China
;
_audit_update_record             
;
2019-03-03 deposited with the CCDC.	2019-07-26 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-2014/7
_shelx_SHELXL_version_number     2014/7
_chemical_name_systematic        ?
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C18 H16 Br2 N2 O3'
_chemical_formula_weight         468.15

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Br Br -0.2901 2.4595 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_H-M_alt        'P -1'
_space_group_name_Hall           '-P 1'

_shelx_space_group_comment       
;
The symmetry employed for this shelxl refinement is uniquely defined
by the following loop, which should always be used as a source of
symmetry information in preference to the above space-group names.
They are only intended as comments.
;

loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, -y, -z'

_cell_length_a                   5.5740(11)
_cell_length_b                   12.623(3)
_cell_length_c                   14.179(3)
_cell_angle_alpha                110.91(3)
_cell_angle_beta                 95.03(3)
_cell_angle_gamma                95.13(3)
_cell_volume                     920.5(4)
_cell_formula_units_Z            2
_cell_measurement_temperature    293(2)
_cell_measurement_reflns_used    25
_cell_measurement_theta_min      9
_cell_measurement_theta_max      13

_exptl_crystal_description       white
_exptl_crystal_colour            ?
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    1.689
_exptl_crystal_F_000             464
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.100
_exptl_absorpt_coefficient_mu    4.422
_shelx_estimated_absorpt_T_min   0.472
_shelx_estimated_absorpt_T_max   0.666
_exptl_absorpt_correction_type   ?
_exptl_absorpt_correction_T_min  ?
_exptl_absorpt_correction_T_max  ?
_exptl_absorpt_process_details   ?
_exptl_absorpt_special_details   ?
_diffrn_ambient_temperature      293(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_source                   ?
_diffrn_measurement_device_type  'Nonius CAD4'
_diffrn_measurement_method       ?
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            3762
_diffrn_reflns_av_unetI/netI     0.1349
_diffrn_reflns_av_R_equivalents  0.0682
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_theta_min         1.550
_diffrn_reflns_theta_max         25.374
_diffrn_reflns_theta_full        25.242
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measured_fraction_theta_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_point_group_measured_fraction_full 1.000
_reflns_number_total             3384
_reflns_number_gt                1565
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_max     .
_reflns_Friedel_fraction_full    .

_reflns_special_details          
;
 Reflections were merged by SHELXL according to the crystal
 class for the calculation of statistics and refinement.
 
 _reflns_Friedel_fraction is defined as the number of unique
 Friedel pairs measured divided by the number that would be
 possible theoretically, ignoring centric projections and
 systematic absences.
;

_computing_data_collection       ?
_computing_cell_refinement       ?
_computing_data_reduction        ?
_computing_structure_solution    ?
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_molecular_graphics    ?
_computing_publication_material  ?
_refine_special_details          ?
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.1000P)²] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     ?
_atom_sites_solution_secondary   ?
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       .
_refine_ls_number_reflns         3384
_refine_ls_number_parameters     214
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.2092
_refine_ls_R_factor_gt           0.1018
_refine_ls_wR_factor_ref         0.2571
_refine_ls_wR_factor_gt          0.2194
_refine_ls_goodness_of_fit_ref   1.216
_refine_ls_restrained_S_all      1.216
_refine_ls_shift/su_max          0.013
_refine_ls_shift/su_mean         0.000

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_site_symmetry_order
_atom_site_calc_flag
_atom_site_refinement_flags_posn
_atom_site_refinement_flags_adp
_atom_site_refinement_flags_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
Br1 Br -0.2132(3) 0.64773(13) 0.57491(11) 0.0767(6) Uani 1 1 d . . . . .
O1 O 0.0754(16) 0.5416(7) 0.1562(6) 0.061(3) Uani 1 1 d . . . . .
H1A H -0.0171 0.4894 0.1130 0.091 Uiso 1 1 calc R U . . .
N1 N -0.3051(18) 0.3864(9) 0.0840(8) 0.053(3) Uani 1 1 d . . . . .
C1 C -0.264(2) 0.5212(10) 0.3607(9) 0.055(4) Uani 1 1 d . . . . .
H1B H -0.3975 0.4789 0.3710 0.067 Uiso 1 1 calc R U . . .
Br2 Br 0.4014(3) 0.73832(12) 0.31313(11) 0.0671(6) Uani 1 1 d . . . . .
O2 O -0.5240(14) 0.3403(6) 0.1943(6) 0.045(2) Uani 1 1 d . . . . .
N2 N -0.784(2) 0.1813(9) 0.0831(7) 0.062(3) Uani 1 1 d . . . . .
C2 C -0.123(3) 0.6098(11) 0.4411(9) 0.054(4) Uani 1 1 d . . . . .
O3 O -0.8651(18) 0.1764(7) 0.1721(6) 0.067(3) Uani 1 1 d . . . . .
C3 C 0.071(2) 0.6707(9) 0.4273(9) 0.047(3) Uani 1 1 d . . . . .
H3A H 0.1619 0.7288 0.4828 0.056 Uiso 1 1 calc R U . . .
C4 C 0.137(2) 0.6474(10) 0.3309(10) 0.047(3) Uani 1 1 d . . . . .
C5 C 0.002(2) 0.5612(10) 0.2483(9) 0.044(3) Uani 1 1 d . . . . .
C6 C -0.194(2) 0.4991(10) 0.2641(8) 0.038(3) Uani 1 1 d . . . . .
C7 C -0.335(2) 0.4050(11) 0.1762(9) 0.046(3) Uani 1 1 d . . . . .
C8 C -0.498(2) 0.2940(10) 0.0197(9) 0.046(3) Uani 1 1 d . . . . .
C9 C -0.623(2) 0.2628(10) 0.0974(9) 0.044(3) Uani 1 1 d . . . . .
C10 C -0.380(2) 0.1925(11) -0.0501(10) 0.058(4) Uani 1 1 d . . . . .
H10A H -0.5055 0.1327 -0.0918 0.087 Uiso 1 1 calc R U . . .
H10B H -0.2845 0.2181 -0.0928 0.087 Uiso 1 1 calc R U . . .
H10C H -0.2784 0.1641 -0.0089 0.087 Uiso 1 1 calc R U . . .
C11 C -0.664(2) 0.3390(11) -0.0445(9) 0.055(4) Uani 1 1 d . . . . .
H11A H -0.7889 0.2787 -0.0860 0.082 Uiso 1 1 calc R U . . .
H11B H -0.7377 0.4010 -0.0006 0.082 Uiso 1 1 calc R U . . .
H11C H -0.5712 0.3657 -0.0874 0.082 Uiso 1 1 calc R U . . .
C12 C -1.039(3) 0.0755(13) 0.1427(12) 0.071 Uani 1 1 d . . . . .
H12A H -0.9682 0.0100 0.1008 0.086 Uiso 1 1 calc R U . . .
H12B H -1.1808 0.0841 0.1028 0.086 Uiso 1 1 calc R U . . .
C13 C -1.111(3) 0.0559(14) 0.2334(12) 0.066 Uani 1 1 d . . . . .
C14 C -1.297(4) 0.1059(13) 0.2740(16) 0.098(7) Uani 1 1 d . . . . .
H14A H -1.3703 0.1549 0.2480 0.117 Uiso 1 1 calc R U . . .
C15 C -1.383(3) 0.0842(18) 0.3558(19) 0.100(8) Uani 1 1 d . . . . .
H15A H -1.5124 0.1196 0.3844 0.120 Uiso 1 1 calc R U . . .
C16 C -1.285(4) 0.0158(16) 0.3928(13) 0.095(7) Uani 1 1 d . . . . .
H16A H -1.3430 0.0032 0.4479 0.114 Uiso 1 1 calc R U . . .
C17 C -1.101(3) -0.0364(14) 0.3523(13) 0.078(5) Uani 1 1 d . . . . .
H17A H -1.0340 -0.0869 0.3781 0.094 Uiso 1 1 calc R U . . .
C18 C -1.011(3) -0.0161(12) 0.2725(11) 0.063(4) Uani 1 1 d . . . . .
H18A H -0.8802 -0.0517 0.2451 0.075 Uiso 1 1 calc R U . . .


_geom_special_details            
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;

loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
Br1 C2 1.909(12) . ?
O1 C5 1.346(13) . ?
O1 H1A 0.8200 . ?
N1 C7 1.272(15) . ?
N1 C8 1.481(14) . ?
C1 C2 1.395(17) . ?
C1 C6 1.395(15) . ?
C1 H1B 0.9300 . ?
Br2 C4 1.877(11) . ?
O2 C7 1.372(13) . ?
O2 C9 1.400(13) . ?
N2 C9 1.250(14) . ?
N2 O3 1.395(12) . ?
C2 C3 1.339(16) . ?
O3 C12 1.436(16) . ?
C3 C4 1.383(16) . ?
C3 H3A 0.9300 . ?
C4 C5 1.381(16) . ?
C5 C6 1.371(15) . ?
C6 C7 1.479(16) . ?
C8 C9 1.501(17) . ?
C8 C11 1.526(16) . ?
C8 C10 1.552(16) . ?
C10 H10A 0.9600 . ?
C10 H10B 0.9600 . ?
C10 H10C 0.9600 . ?
C11 H11A 0.9600 . ?
C11 H11B 0.9600 . ?
C11 H11C 0.9600 . ?
C12 C13 1.476(19) . ?
C12 H12A 0.9700 . ?
C12 H12B 0.9700 . ?
C13 C18 1.357(19) . ?
C13 C14 1.33(2) . ?
C14 C15 1.40(3) . ?
C14 H14A 0.9300 . ?
C15 C16 1.29(3) . ?
C15 H15A 0.9300 . ?
C16 C17 1.33(2) . ?
C16 H16A 0.9300 . ?
C17 C18 1.37(2) . ?
C17 H17A 0.9300 . ?
C18 H18A 0.9300 . ?

loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
C5 O1 H1A 109.5 . . ?
C7 N1 C8 107.0(10) . . ?
C2 C1 C6 116.6(11) . . ?
C2 C1 H1B 121.7 . . ?
C6 C1 H1B 121.7 . . ?
C7 O2 C9 104.1(9) . . ?
C9 N2 O3 114.3(9) . . ?
C3 C2 C1 122.2(11) . . ?
C3 C2 Br1 118.9(9) . . ?
C1 C2 Br1 118.9(10) . . ?
N2 O3 C12 107.1(9) . . ?
C2 C3 C4 120.2(11) . . ?
C2 C3 H3A 119.9 . . ?
C4 C3 H3A 119.9 . . ?
C5 C4 C3 120.0(11) . . ?
C5 C4 Br2 120.7(9) . . ?
C3 C4 Br2 119.2(9) . . ?
O1 C5 C6 123.5(10) . . ?
O1 C5 C4 117.6(10) . . ?
C6 C5 C4 118.9(11) . . ?
C5 C6 C1 122.0(11) . . ?
C5 C6 C7 119.1(10) . . ?
C1 C6 C7 118.9(11) . . ?
N1 C7 O2 117.9(10) . . ?
N1 C7 C6 123.8(11) . . ?
O2 C7 C6 118.1(10) . . ?
N1 C8 C9 102.2(10) . . ?
N1 C8 C11 109.9(10) . . ?
C9 C8 C11 113.0(11) . . ?
N1 C8 C10 109.5(10) . . ?
C9 C8 C10 111.7(11) . . ?
C11 C8 C10 110.2(10) . . ?
N2 C9 O2 123.2(11) . . ?
N2 C9 C8 128.4(11) . . ?
O2 C9 C8 108.4(10) . . ?
C8 C10 H10A 109.5 . . ?
C8 C10 H10B 109.5 . . ?
H10A C10 H10B 109.5 . . ?
C8 C10 H10C 109.5 . . ?
H10A C10 H10C 109.5 . . ?
H10B C10 H10C 109.5 . . ?
C8 C11 H11A 109.5 . . ?
C8 C11 H11B 109.5 . . ?
H11A C11 H11B 109.5 . . ?
C8 C11 H11C 109.5 . . ?
H11A C11 H11C 109.5 . . ?
H11B C11 H11C 109.5 . . ?
O3 C12 C13 110.7(12) . . ?
O3 C12 H12A 109.5 . . ?
C13 C12 H12A 109.5 . . ?
O3 C12 H12B 109.5 . . ?
C13 C12 H12B 109.5 . . ?
H12A C12 H12B 108.1 . . ?
C18 C13 C14 118.7(16) . . ?
C18 C13 C12 123.7(16) . . ?
C14 C13 C12 117.4(19) . . ?
C13 C14 C15 119.5(18) . . ?
C13 C14 H14A 120.2 . . ?
C15 C14 H14A 120.2 . . ?
C16 C15 C14 121(2) . . ?
C16 C15 H15A 119.4 . . ?
C14 C15 H15A 119.4 . . ?
C15 C16 C17 120.3(19) . . ?
C15 C16 H16A 119.9 . . ?
C17 C16 H16A 119.9 . . ?
C16 C17 C18 120.2(16) . . ?
C16 C17 H17A 119.9 . . ?
C18 C17 H17A 119.9 . . ?
C17 C18 C13 120.1(15) . . ?
C17 C18 H18A 119.9 . . ?
C13 C18 H18A 119.9 . . ?

loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
C6 C1 C2 C3 -1(2) . . . . ?
C6 C1 C2 Br1 178.2(10) . . . . ?
C9 N2 O3 C12 -177.0(12) . . . . ?
C1 C2 C3 C4 1(2) . . . . ?
Br1 C2 C3 C4 -178.1(10) . . . . ?
C2 C3 C4 C5 0(2) . . . . ?
C2 C3 C4 Br2 177.3(10) . . . . ?
C3 C4 C5 O1 -179.5(12) . . . . ?
Br2 C4 C5 O1 3.1(17) . . . . ?
C3 C4 C5 C6 -0.6(19) . . . . ?
Br2 C4 C5 C6 -177.9(9) . . . . ?
O1 C5 C6 C1 179.5(13) . . . . ?
C4 C5 C6 C1 0.6(19) . . . . ?
O1 C5 C6 C7 0.2(19) . . . . ?
C4 C5 C6 C7 -178.7(12) . . . . ?
C2 C1 C6 C5 0(2) . . . . ?
C2 C1 C6 C7 179.2(12) . . . . ?
C8 N1 C7 O2 0.3(16) . . . . ?
C8 N1 C7 C6 -173.8(11) . . . . ?
C9 O2 C7 N1 3.8(15) . . . . ?
C9 O2 C7 C6 178.2(11) . . . . ?
C5 C6 C7 N1 -9(2) . . . . ?
C1 C6 C7 N1 171.6(13) . . . . ?
C5 C6 C7 O2 176.8(11) . . . . ?
C1 C6 C7 O2 -2.5(18) . . . . ?
C7 N1 C8 C9 -3.9(14) . . . . ?
C7 N1 C8 C11 116.3(12) . . . . ?
C7 N1 C8 C10 -122.5(12) . . . . ?
O3 N2 C9 O2 2.4(19) . . . . ?
O3 N2 C9 C8 -179.5(13) . . . . ?
C7 O2 C9 N2 172.4(13) . . . . ?
C7 O2 C9 C8 -6.0(13) . . . . ?
N1 C8 C9 N2 -172.1(14) . . . . ?
C11 C8 C9 N2 69.8(18) . . . . ?
C10 C8 C9 N2 -55.1(19) . . . . ?
N1 C8 C9 O2 6.2(14) . . . . ?
C11 C8 C9 O2 -111.9(11) . . . . ?
C10 C8 C9 O2 123.2(10) . . . . ?
N2 O3 C12 C13 173.0(12) . . . . ?
O3 C12 C13 C18 -96.5(17) . . . . ?
O3 C12 C13 C14 88.3(16) . . . . ?
C18 C13 C14 C15 1(2) . . . . ?
C12 C13 C14 C15 176.0(15) . . . . ?
C13 C14 C15 C16 0(3) . . . . ?
C14 C15 C16 C17 -1(3) . . . . ?
C15 C16 C17 C18 2(3) . . . . ?
C16 C17 C18 C13 -1(2) . . . . ?
C14 C13 C18 C17 0(2) . . . . ?
C12 C13 C18 C17 -175.0(14) . . . . ?

_refine_diff_density_max         1.196
_refine_diff_density_min         -1.672
_refine_diff_density_rms         0.207

