# Electronic Supplementary Material (ESI) for ChemComm.
# 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_ga_90304b_a
_database_code_depnum_ccdc_archive 'CCDC 1905195'
loop_
_audit_author_name
_audit_author_address
HJ
;Shanghai university
China
;
_audit_update_record             
;
2019-03-24 deposited with the CCDC.	2019-06-21 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-2016/6
_shelx_SHELXL_version_number     2016/6
_chemical_name_systematic        ?
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C19 H22 Br N O4'
_chemical_formula_weight         408.28

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0137 0.0067 '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'
Br Br -0.9338 1.0006 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0241 0.0134 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0389 0.0241 '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                   7.9851(2)
_cell_length_b                   9.3241(2)
_cell_length_c                   13.5175(3)
_cell_angle_alpha                96.5930(10)
_cell_angle_beta                 106.2220(10)
_cell_angle_gamma                96.1540(10)
_cell_volume                     949.68(4)
_cell_formula_units_Z            2
_cell_measurement_temperature    298(2)
_cell_measurement_reflns_used    9928
_cell_measurement_theta_min      5.07
_cell_measurement_theta_max      59.26

_exptl_crystal_description       block
_exptl_crystal_colour            colourless
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    1.428
_exptl_crystal_F_000             420
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.140
_exptl_crystal_size_min          0.080
_exptl_absorpt_coefficient_mu    2.068
_shelx_estimated_absorpt_T_min   0.682
_shelx_estimated_absorpt_T_max   0.852
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.632
_exptl_absorpt_correction_T_max  0.752
_exptl_absorpt_process_details   sadabs
_exptl_absorpt_special_details   ?
_diffrn_ambient_temperature      298(2)
_diffrn_radiation_wavelength     1.34138
_diffrn_radiation_type           GaK\a
_diffrn_source                   ?
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'φ and ω scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            29819
_diffrn_reflns_av_unetI/netI     0.0261
_diffrn_reflns_av_R_equivalents  0.0367
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_theta_min         5.073
_diffrn_reflns_theta_max         58.498
_diffrn_reflns_theta_full        53.594
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measured_fraction_theta_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_point_group_measured_fraction_full 0.997
_reflns_number_total             4085
_reflns_number_gt                3799
_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       'Bruker APEX2'
_computing_cell_refinement       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_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)+(0.0410P)²+0.3754P] 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         4085
_refine_ls_number_parameters     231
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0366
_refine_ls_R_factor_gt           0.0347
_refine_ls_wR_factor_ref         0.0942
_refine_ls_wR_factor_gt          0.0925
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_restrained_S_all      1.042
_refine_ls_shift/su_max          0.001
_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 0.94516(4) -0.00151(3) 0.72695(2) 0.07682(12) Uani 1 1 d . . . . .
N1 N 0.49920(19) 0.48829(14) 0.22197(12) 0.0460(3) Uani 1 1 d . . . . .
O1 O 0.37517(15) 0.26349(12) 0.11575(10) 0.0488(3) Uani 1 1 d . . . . .
O2 O 0.27990(19) 0.03465(14) 0.03545(11) 0.0601(3) Uani 1 1 d . . . . .
O3 O 0.8615(2) 0.41726(16) 0.34214(13) 0.0747(5) Uani 1 1 d . . . . .
O4 O 0.5720(2) 0.71841(16) 0.19464(16) 0.0775(5) Uani 1 1 d . . . . .
C1 C 0.4021(2) 0.12214(18) 0.11275(14) 0.0477(4) Uani 1 1 d . . . . .
C2 C 0.5459(2) 0.10464(18) 0.18875(14) 0.0480(4) Uani 1 1 d . . . . .
H2 H 0.589607 0.018023 0.201978 0.058 Uiso 1 1 calc R U . . .
C3 C 0.6171(2) 0.24921(18) 0.24499(13) 0.0449(3) Uani 1 1 d . . . . .
C4 C 0.5107(2) 0.34134(18) 0.19847(13) 0.0449(3) Uani 1 1 d . . . . .
C5 C 0.7719(2) 0.30098(19) 0.33764(14) 0.0491(4) Uani 1 1 d . . . . .
C6 C 0.8123(2) 0.21697(18) 0.42670(13) 0.0439(3) Uani 1 1 d . . . . .
C7 C 0.9638(2) 0.2688(2) 0.50885(15) 0.0539(4) Uani 1 1 d . . . . .
H7 H 1.038920 0.349585 0.504266 0.065 Uiso 1 1 calc R U . . .
C8 C 1.0048(3) 0.2028(2) 0.59698(16) 0.0581(5) Uani 1 1 d . . . . .
H8 H 1.106691 0.238320 0.651444 0.070 Uiso 1 1 calc R U . . .
C9 C 0.8931(2) 0.0836(2) 0.60321(14) 0.0508(4) Uani 1 1 d . . . . .
C10 C 0.7431(3) 0.0283(2) 0.52258(16) 0.0562(4) Uani 1 1 d . . . . .
H10 H 0.669663 -0.053394 0.527305 0.067 Uiso 1 1 calc R U . . .
C11 C 0.7029(2) 0.0953(2) 0.43483(15) 0.0518(4) Uani 1 1 d . . . . .
H11 H 0.601423 0.058610 0.380406 0.062 Uiso 1 1 calc R U . . .
C12 C 0.2773(3) -0.1179(2) 0.04265(16) 0.0556(4) Uani 1 1 d . . . . .
H12A H 0.279767 -0.134812 0.112491 0.067 Uiso 1 1 calc R U . . .
H12B H 0.379552 -0.151525 0.027468 0.067 Uiso 1 1 calc R U . . .
C13 C 0.1130(3) -0.1980(3) -0.0342(2) 0.0779(7) Uani 1 1 d . . . . .
H13A H 0.012974 -0.159066 -0.021711 0.117 Uiso 1 1 calc R U . . .
H13B H 0.103594 -0.299624 -0.027166 0.117 Uiso 1 1 calc R U . . .
H13C H 0.116173 -0.187140 -0.103468 0.117 Uiso 1 1 calc R U . . .
C14 C 0.5859(2) 0.5899(2) 0.18028(16) 0.0531(4) Uani 1 1 d . . . . .
C15 C 0.7003(3) 0.5358(3) 0.11706(19) 0.0704(6) Uani 1 1 d . . . . .
H15A H 0.741806 0.614074 0.085568 0.106 Uiso 1 1 calc R U . . .
H15B H 0.633077 0.457515 0.063604 0.106 Uiso 1 1 calc R U . . .
H15C H 0.799110 0.501391 0.161590 0.106 Uiso 1 1 calc R U . . .
C16 C 0.3765(2) 0.5303(2) 0.28439(16) 0.0538(4) Uani 1 1 d . . . . .
C17 C 0.3096(4) 0.3975(3) 0.3247(3) 0.0886(8) Uani 1 1 d . . . . .
H17A H 0.407360 0.361748 0.369201 0.133 Uiso 1 1 calc R U . . .
H17B H 0.248338 0.322782 0.267040 0.133 Uiso 1 1 calc R U . . .
H17C H 0.230552 0.423713 0.363538 0.133 Uiso 1 1 calc R U . . .
C18 C 0.4751(4) 0.6475(4) 0.3755(2) 0.0992(10) Uani 1 1 d . . . . .
H18A H 0.576124 0.612616 0.417537 0.149 Uiso 1 1 calc R U . . .
H18B H 0.398752 0.670680 0.416872 0.149 Uiso 1 1 calc R U . . .
H18C H 0.512803 0.733303 0.349909 0.149 Uiso 1 1 calc R U . . .
C19 C 0.2186(3) 0.5822(3) 0.2131(3) 0.0887(8) Uani 1 1 d . . . . .
H19A H 0.133876 0.598644 0.249951 0.133 Uiso 1 1 calc R U . . .
H19B H 0.165681 0.509236 0.152995 0.133 Uiso 1 1 calc R U . . .
H19C H 0.256492 0.671455 0.191471 0.133 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 C9 1.8942(18) . ?
N1 C14 1.376(2) . ?
N1 C4 1.389(2) . ?
N1 C16 1.514(2) . ?
O1 C1 1.356(2) . ?
O1 C4 1.385(2) . ?
O2 C1 1.332(2) . ?
O2 C12 1.435(2) . ?
O3 C5 1.219(2) . ?
O4 C14 1.214(2) . ?
C1 C2 1.349(2) . ?
C2 C3 1.441(2) . ?
C2 H2 0.9300 . ?
C3 C4 1.356(2) . ?
C3 C5 1.483(2) . ?
C5 C6 1.490(2) . ?
C6 C11 1.390(2) . ?
C6 C7 1.390(2) . ?
C7 C8 1.378(3) . ?
C7 H7 0.9300 . ?
C8 C9 1.374(3) . ?
C8 H8 0.9300 . ?
C9 C10 1.378(3) . ?
C10 C11 1.379(3) . ?
C10 H10 0.9300 . ?
C11 H11 0.9300 . ?
C12 C13 1.486(3) . ?
C12 H12A 0.9700 . ?
C12 H12B 0.9700 . ?
C13 H13A 0.9600 . ?
C13 H13B 0.9600 . ?
C13 H13C 0.9600 . ?
C14 C15 1.502(3) . ?
C15 H15A 0.9600 . ?
C15 H15B 0.9600 . ?
C15 H15C 0.9600 . ?
C16 C17 1.514(3) . ?
C16 C18 1.515(3) . ?
C16 C19 1.520(3) . ?
C17 H17A 0.9600 . ?
C17 H17B 0.9600 . ?
C17 H17C 0.9600 . ?
C18 H18A 0.9600 . ?
C18 H18B 0.9600 . ?
C18 H18C 0.9600 . ?
C19 H19A 0.9600 . ?
C19 H19B 0.9600 . ?
C19 H19C 0.9600 . ?

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
C14 N1 C4 119.50(16) . . ?
C14 N1 C16 121.72(15) . . ?
C4 N1 C16 118.50(14) . . ?
C1 O1 C4 105.94(12) . . ?
C1 O2 C12 114.33(14) . . ?
O2 C1 C2 135.69(16) . . ?
O2 C1 O1 112.08(14) . . ?
C2 C1 O1 112.24(15) . . ?
C1 C2 C3 105.09(15) . . ?
C1 C2 H2 127.5 . . ?
C3 C2 H2 127.5 . . ?
C4 C3 C2 106.96(14) . . ?
C4 C3 C5 122.08(15) . . ?
C2 C3 C5 130.95(15) . . ?
C3 C4 O1 109.77(14) . . ?
C3 C4 N1 134.31(16) . . ?
O1 C4 N1 115.53(14) . . ?
O3 C5 C3 118.88(16) . . ?
O3 C5 C6 120.19(16) . . ?
C3 C5 C6 120.84(15) . . ?
C11 C6 C7 118.39(17) . . ?
C11 C6 C5 123.93(15) . . ?
C7 C6 C5 117.58(15) . . ?
C8 C7 C6 121.20(17) . . ?
C8 C7 H7 119.4 . . ?
C6 C7 H7 119.4 . . ?
C9 C8 C7 119.05(17) . . ?
C9 C8 H8 120.5 . . ?
C7 C8 H8 120.5 . . ?
C8 C9 C10 121.19(18) . . ?
C8 C9 Br1 118.79(14) . . ?
C10 C9 Br1 119.99(15) . . ?
C9 C10 C11 119.35(17) . . ?
C9 C10 H10 120.3 . . ?
C11 C10 H10 120.3 . . ?
C10 C11 C6 120.81(17) . . ?
C10 C11 H11 119.6 . . ?
C6 C11 H11 119.6 . . ?
O2 C12 C13 107.89(16) . . ?
O2 C12 H12A 110.1 . . ?
C13 C12 H12A 110.1 . . ?
O2 C12 H12B 110.1 . . ?
C13 C12 H12B 110.1 . . ?
H12A C12 H12B 108.4 . . ?
C12 C13 H13A 109.5 . . ?
C12 C13 H13B 109.5 . . ?
H13A C13 H13B 109.5 . . ?
C12 C13 H13C 109.5 . . ?
H13A C13 H13C 109.5 . . ?
H13B C13 H13C 109.5 . . ?
O4 C14 N1 121.52(19) . . ?
O4 C14 C15 121.08(19) . . ?
N1 C14 C15 117.40(17) . . ?
C14 C15 H15A 109.5 . . ?
C14 C15 H15B 109.5 . . ?
H15A C15 H15B 109.5 . . ?
C14 C15 H15C 109.5 . . ?
H15A C15 H15C 109.5 . . ?
H15B C15 H15C 109.5 . . ?
N1 C16 C17 109.41(16) . . ?
N1 C16 C18 109.57(17) . . ?
C17 C16 C18 109.4(2) . . ?
N1 C16 C19 108.91(19) . . ?
C17 C16 C19 107.9(2) . . ?
C18 C16 C19 111.5(2) . . ?
C16 C17 H17A 109.5 . . ?
C16 C17 H17B 109.5 . . ?
H17A C17 H17B 109.5 . . ?
C16 C17 H17C 109.5 . . ?
H17A C17 H17C 109.5 . . ?
H17B C17 H17C 109.5 . . ?
C16 C18 H18A 109.5 . . ?
C16 C18 H18B 109.5 . . ?
H18A C18 H18B 109.5 . . ?
C16 C18 H18C 109.5 . . ?
H18A C18 H18C 109.5 . . ?
H18B C18 H18C 109.5 . . ?
C16 C19 H19A 109.5 . . ?
C16 C19 H19B 109.5 . . ?
H19A C19 H19B 109.5 . . ?
C16 C19 H19C 109.5 . . ?
H19A C19 H19C 109.5 . . ?
H19B C19 H19C 109.5 . . ?

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
C12 O2 C1 C2 13.6(3) . . . . ?
C12 O2 C1 O1 -166.38(16) . . . . ?
C4 O1 C1 O2 -179.70(15) . . . . ?
C4 O1 C1 C2 0.3(2) . . . . ?
O2 C1 C2 C3 179.8(2) . . . . ?
O1 C1 C2 C3 -0.2(2) . . . . ?
C1 C2 C3 C4 0.1(2) . . . . ?
C1 C2 C3 C5 178.70(19) . . . . ?
C2 C3 C4 O1 0.1(2) . . . . ?
C5 C3 C4 O1 -178.66(16) . . . . ?
C2 C3 C4 N1 172.37(19) . . . . ?
C5 C3 C4 N1 -6.4(3) . . . . ?
C1 O1 C4 C3 -0.3(2) . . . . ?
C1 O1 C4 N1 -174.12(15) . . . . ?
C14 N1 C4 C3 93.6(3) . . . . ?
C16 N1 C4 C3 -92.4(2) . . . . ?
C14 N1 C4 O1 -94.51(19) . . . . ?
C16 N1 C4 O1 79.5(2) . . . . ?
C4 C3 C5 O3 -38.9(3) . . . . ?
C2 C3 C5 O3 142.6(2) . . . . ?
C4 C3 C5 C6 137.75(18) . . . . ?
C2 C3 C5 C6 -40.7(3) . . . . ?
O3 C5 C6 C11 170.21(19) . . . . ?
C3 C5 C6 C11 -6.4(3) . . . . ?
O3 C5 C6 C7 -6.2(3) . . . . ?
C3 C5 C6 C7 177.26(16) . . . . ?
C11 C6 C7 C8 -0.6(3) . . . . ?
C5 C6 C7 C8 175.94(18) . . . . ?
C6 C7 C8 C9 -0.1(3) . . . . ?
C7 C8 C9 C10 1.0(3) . . . . ?
C7 C8 C9 Br1 -177.37(15) . . . . ?
C8 C9 C10 C11 -1.1(3) . . . . ?
Br1 C9 C10 C11 177.21(15) . . . . ?
C9 C10 C11 C6 0.4(3) . . . . ?
C7 C6 C11 C10 0.5(3) . . . . ?
C5 C6 C11 C10 -175.85(18) . . . . ?
C1 O2 C12 C13 168.00(19) . . . . ?
C4 N1 C14 O4 176.24(18) . . . . ?
C16 N1 C14 O4 2.4(3) . . . . ?
C4 N1 C14 C15 -4.4(2) . . . . ?
C16 N1 C14 C15 -178.24(17) . . . . ?
C14 N1 C16 C17 -176.8(2) . . . . ?
C4 N1 C16 C17 9.3(3) . . . . ?
C14 N1 C16 C18 -56.8(3) . . . . ?
C4 N1 C16 C18 129.3(2) . . . . ?
C14 N1 C16 C19 65.4(2) . . . . ?
C4 N1 C16 C19 -108.5(2) . . . . ?

_refine_diff_density_max         0.535
_refine_diff_density_min         -0.561
_refine_diff_density_rms         0.042

