# Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry.
# This journal is © The Royal Society of Chemistry 2015

####################################################################### 
# 
# 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_ay91
_database_code_depnum_ccdc_archive 'CCDC 1061396'
_audit_update_record             
;
2015-04-23 deposited with the CCDC.
2015-07-10 downloaded from the CCDC.
;
_audit_creation_date             2015-04-23
_audit_creation_method           
;
  Olex2 1.2
  (compiled Dec  5 2012 16:20:19, GUI svn.r4385)
;
_chemical_name_common            ?
_chemical_name_systematic        ?
_chemical_formula_moiety         'C18 H23 N O3'
_chemical_formula_sum            'C18 H23 N O3'
_chemical_formula_weight         301.37
_chemical_absolute_configuration ?
_chemical_melting_point          ?
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'

_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_H-M_alt        'P n a 21'
_space_group_name_Hall           'P 2c -2n'
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, -y, z+1/2'
'x+1/2, -y+1/2, z'
'-x+1/2, y+1/2, z+1/2'

_cell_length_a                   24.909(2)
_cell_length_b                   9.2315(8)
_cell_length_c                   6.9138(6)
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_volume                     1589.8(2)
_cell_formula_units_Z            4
_cell_measurement_reflns_used    8716
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      28.19
_cell_measurement_theta_min      2.35
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.97
_exptl_absorpt_correction_T_min  0.93
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   'SADABS; Bruker,2001'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.259
_exptl_crystal_density_meas      .
_exptl_crystal_density_method    ?
_exptl_crystal_description       block
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.11
_exptl_transmission_factor_max   ?
_exptl_transmission_factor_min   ?
_diffrn_reflns_av_R_equivalents  0.0202
_diffrn_reflns_av_unetI/netI     0.0169
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            17913
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.974
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.301
_diffrn_reflns_theta_min         1.635
_diffrn_ambient_temperature      294(2)
_diffrn_detector_area_resol_mean ?
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_reflns_Friedel_coverage         0.816
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.953
_reflns_number_gt                3626
_reflns_number_total             3849
_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.
;
_reflns_threshold_expression     'I > 2σ(I)'
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT v6.45A (Bruker, 2003)'
_computing_molecular_graphics    
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material  
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement  
;
SHELXL, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution    
;
SHELXS, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_refine_diff_density_max         0.258
_refine_diff_density_min         -0.169
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details 
;
 Flack x determined using 1560 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.7(3)
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     203
_refine_ls_number_reflns         3849
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0427
_refine_ls_R_factor_gt           0.0404
_refine_ls_restrained_S_all      1.039
_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/[σ²(Fo²)+(0.0744P)²+0.1058P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1063
_refine_ls_wR_factor_ref         0.1087
_olex2_refinement_description    
;
1. Others
 Fixed Uiso: H2(0.049) H3(0.056) H4(0.055) H5(0.048) H8A(0.044) H8B(0.044)
 H9A(0.055) H9B(0.055) H10(0.043) H11A(0.044) H11B(0.044) H13A(0.09) H13B(0.09)
 H13C(0.09) H14A(0.091) H14B(0.091) H14C(0.091) H15A(0.081) H15B(0.081)
 H15C(0.081) H18A(0.069) H18B(0.069) H18C(0.069)
 Fixed X: H2(0.5469) H3(0.511) H4(0.4189) H5(0.3635) H8A(0.426) H8B(0.3823)
 H9A(0.3601) H9B(0.3532) H10(0.3005) H11A(0.3135) H11B(0.3221) H13A(0.2243)
 H13B(0.2186) H13C(0.1703) H14A(0.161) H14B(0.2036) H14C(0.2119) H15A(0.2365)
 H15B(0.2339) H15C(0.1815) H18A(0.5635) H18B(0.5682) H18C(0.5766)
 Fixed Y: H2(0.5212) H3(0.2917) H4(0.2602) H5(0.4601) H8A(0.8403) H8B(0.7287)
 H9A(1.0104) H9B(0.9612) H10(0.933) H11A(0.6367) H11B(0.7009) H13A(0.61)
 H13B(0.7203) H13C(0.6943) H14A(0.9473) H14B(0.9857) H14C(1.0385) H15A(0.8533)
 H15B(0.6887) H15C(0.7825) H18A(0.895) H18B(0.7378) H18C(0.7649)
 Fixed Z: H2(0.0698) H3(0.0512) H4(0.0331) H5(0.0198) H8A(-0.2168) H8B(-
 0.2845) H9A(-0.1451) H9B(-0.3609) H10(0.0904) H11A(-0.008) H11B(0.1996) H13A(-
 0.0478) H13B(-0.219) H13C(-0.0777) H14A(0.0222) H14B(-0.1368) H14C(0.0767)
 H15A(0.3365) H15B(0.2814) H15C(0.2805) H18A(0.0079) H18B(-0.076) H18C(0.1458)
;
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   ?
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
C1 C 0.47664(7) 0.63096(18) 0.0537(3) 0.0322(3) Uani 1 1 d . . . . .
C2 C 0.50994(7) 0.5094(2) 0.0593(3) 0.0409(4) Uani 1 1 d . . . . .
H2 H 0.5469 0.5212 0.0698 0.049 Uiso 1 1 calc R U . . .
C3 C 0.48844(8) 0.3719(2) 0.0494(3) 0.0463(4) Uani 1 1 d . . . . .
H3 H 0.5110 0.2917 0.0512 0.056 Uiso 1 1 calc R U . . .
C4 C 0.43352(9) 0.35291(19) 0.0367(3) 0.0460(4) Uani 1 1 d . . . . .
H4 H 0.4189 0.2602 0.0331 0.055 Uiso 1 1 calc R U . . .
C5 C 0.40041(8) 0.47333(19) 0.0294(3) 0.0398(4) Uani 1 1 d . . . . .
H5 H 0.3635 0.4601 0.0198 0.048 Uiso 1 1 calc R U . . .
C6 C 0.42083(6) 0.61367(16) 0.0358(3) 0.0310(3) Uani 1 1 d . . . . .
C7 C 0.38517(6) 0.74794(17) 0.0159(3) 0.0306(3) Uani 1 1 d . . . . .
C8 C 0.38967(7) 0.80642(19) -0.1938(3) 0.0363(4) Uani 1 1 d . . . . .
H8A H 0.4260 0.8403 -0.2168 0.044 Uiso 1 1 calc R U . . .
H8B H 0.3823 0.7287 -0.2845 0.044 Uiso 1 1 calc R U . . .
C9 C 0.35055(7) 0.9294(2) -0.2275(3) 0.0457(5) Uani 1 1 d . . . . .
H9A H 0.3601 1.0104 -0.1451 0.055 Uiso 1 1 calc R U . . .
H9B H 0.3532 0.9612 -0.3609 0.055 Uiso 1 1 calc R U . . .
C10 C 0.28978(6) 0.85001(18) 0.0110(3) 0.0359(4) Uani 1 1 d . . . . .
H10 H 0.3005 0.9330 0.0904 0.043 Uiso 1 1 calc R U . . .
C11 C 0.32569(6) 0.72135(18) 0.0626(3) 0.0365(4) Uani 1 1 d . . . . .
H11A H 0.3135 0.6367 -0.0080 0.044 Uiso 1 1 calc R U . . .
H11B H 0.3221 0.7009 0.1996 0.044 Uiso 1 1 calc R U . . .
C12 C 0.22915(7) 0.82163(18) 0.0430(3) 0.0408(4) Uani 1 1 d . . . . .
C13 C 0.20870(9) 0.7003(3) -0.0874(5) 0.0602(6) Uani 1 1 d . . . . .
H13A H 0.2243 0.6100 -0.0478 0.090 Uiso 1 1 calc R U . . .
H13B H 0.2186 0.7203 -0.2190 0.090 Uiso 1 1 calc R U . . .
H13C H 0.1703 0.6943 -0.0777 0.090 Uiso 1 1 calc R U . . .
C14 C 0.19859(8) 0.9613(3) -0.0030(5) 0.0606(7) Uani 1 1 d . . . . .
H14A H 0.1610 0.9473 0.0222 0.091 Uiso 1 1 calc R U . . .
H14B H 0.2036 0.9857 -0.1368 0.091 Uiso 1 1 calc R U . . .
H14C H 0.2119 1.0385 0.0767 0.091 Uiso 1 1 calc R U . . .
C15 C 0.21936(8) 0.7830(3) 0.2551(4) 0.0538(6) Uani 1 1 d . . . . .
H15A H 0.2365 0.8533 0.3365 0.081 Uiso 1 1 calc R U . . .
H15B H 0.2339 0.6887 0.2814 0.081 Uiso 1 1 calc R U . . .
H15C H 0.1815 0.7825 0.2805 0.081 Uiso 1 1 calc R U . . .
C16 C 0.40985(7) 0.85576(19) 0.1552(3) 0.0393(4) Uani 1 1 d . . . . .
C17 C 0.46977(7) 0.8876(2) 0.1225(3) 0.0401(4) Uani 1 1 d . . . . .
C18 C 0.55687(7) 0.7944(2) 0.0332(4) 0.0458(4) Uani 1 1 d . . . . .
H18A H 0.5635 0.8950 0.0079 0.069 Uiso 1 1 calc R U . . .
H18B H 0.5682 0.7378 -0.0760 0.069 Uiso 1 1 calc R U . . .
H18C H 0.5766 0.7649 0.1458 0.069 Uiso 1 1 calc R U . . .
N1 N 0.49940(5) 0.77211(16) 0.0662(2) 0.0359(3) Uani 1 1 d . . . . .
O1 O 0.29672(5) 0.88752(17) -0.1881(2) 0.0464(4) Uani 1 1 d . . . . .
O2 O 0.38694(7) 0.9154(2) 0.2846(3) 0.0715(6) Uani 1 1 d . . . . .
O3 O 0.48730(7) 1.00923(17) 0.1465(3) 0.0606(5) Uani 1 1 d . . . . .


_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
C1 C2 1.396(2) . ?
C1 C6 1.405(2) . ?
C1 N1 1.424(2) . ?
C2 H2 0.9300 . ?
C2 C3 1.379(3) . ?
C3 H3 0.9300 . ?
C3 C4 1.382(3) . ?
C4 H4 0.9300 . ?
C4 C5 1.385(3) . ?
C5 H5 0.9300 . ?
C5 C6 1.392(2) . ?
C6 C7 1.531(2) . ?
C7 C8 1.551(2) . ?
C7 C11 1.536(2) . ?
C7 C16 1.515(3) . ?
C8 H8A 0.9700 . ?
C8 H8B 0.9700 . ?
C8 C9 1.514(2) . ?
C9 H9A 0.9700 . ?
C9 H9B 0.9700 . ?
C9 O1 1.422(2) . ?
C10 H10 0.9800 . ?
C10 C11 1.529(2) . ?
C10 C12 1.549(2) . ?
C10 O1 1.430(2) . ?
C11 H11A 0.9700 . ?
C11 H11B 0.9700 . ?
C12 C13 1.526(3) . ?
C12 C14 1.531(3) . ?
C12 C15 1.528(3) . ?
C13 H13A 0.9600 . ?
C13 H13B 0.9600 . ?
C13 H13C 0.9600 . ?
C14 H14A 0.9600 . ?
C14 H14B 0.9600 . ?
C14 H14C 0.9600 . ?
C15 H15A 0.9600 . ?
C15 H15B 0.9600 . ?
C15 H15C 0.9600 . ?
C16 C17 1.538(3) . ?
C16 O2 1.195(3) . ?
C17 N1 1.354(2) . ?
C17 O3 1.216(2) . ?
C18 H18A 0.9600 . ?
C18 H18B 0.9600 . ?
C18 H18C 0.9600 . ?
C18 N1 1.464(2) . ?

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
C2 C1 C6 119.93(15) . . ?
C2 C1 N1 119.84(15) . . ?
C6 C1 N1 120.23(14) . . ?
C1 C2 H2 119.8 . . ?
C3 C2 C1 120.50(16) . . ?
C3 C2 H2 119.8 . . ?
C2 C3 H3 119.8 . . ?
C2 C3 C4 120.31(16) . . ?
C4 C3 H3 119.8 . . ?
C3 C4 H4 120.3 . . ?
C3 C4 C5 119.32(17) . . ?
C5 C4 H4 120.3 . . ?
C4 C5 H5 119.1 . . ?
C4 C5 C6 121.87(17) . . ?
C6 C5 H5 119.1 . . ?
C1 C6 C7 119.35(13) . . ?
C5 C6 C1 118.04(14) . . ?
C5 C6 C7 122.57(14) . . ?
C6 C7 C8 108.90(13) . . ?
C6 C7 C11 114.29(13) . . ?
C11 C7 C8 108.76(14) . . ?
C16 C7 C6 103.83(13) . . ?
C16 C7 C8 109.65(15) . . ?
C16 C7 C11 111.27(14) . . ?
C7 C8 H8A 109.4 . . ?
C7 C8 H8B 109.4 . . ?
H8A C8 H8B 108.0 . . ?
C9 C8 C7 110.98(15) . . ?
C9 C8 H8A 109.4 . . ?
C9 C8 H8B 109.4 . . ?
C8 C9 H9A 109.2 . . ?
C8 C9 H9B 109.2 . . ?
H9A C9 H9B 107.9 . . ?
O1 C9 C8 111.95(15) . . ?
O1 C9 H9A 109.2 . . ?
O1 C9 H9B 109.2 . . ?
C11 C10 H10 108.5 . . ?
C11 C10 C12 113.92(13) . . ?
C12 C10 H10 108.5 . . ?
O1 C10 H10 108.5 . . ?
O1 C10 C11 110.00(15) . . ?
O1 C10 C12 107.26(15) . . ?
C7 C11 H11A 109.0 . . ?
C7 C11 H11B 109.0 . . ?
C10 C11 C7 113.02(13) . . ?
C10 C11 H11A 109.0 . . ?
C10 C11 H11B 109.0 . . ?
H11A C11 H11B 107.8 . . ?
C13 C12 C10 111.41(17) . . ?
C13 C12 C14 109.2(2) . . ?
C13 C12 C15 110.02(19) . . ?
C14 C12 C10 108.22(14) . . ?
C15 C12 C10 109.42(17) . . ?
C15 C12 C14 108.47(19) . . ?
C12 C13 H13A 109.5 . . ?
C12 C13 H13B 109.5 . . ?
C12 C13 H13C 109.5 . . ?
H13A C13 H13B 109.5 . . ?
H13A C13 H13C 109.5 . . ?
H13B C13 H13C 109.5 . . ?
C12 C14 H14A 109.5 . . ?
C12 C14 H14B 109.5 . . ?
C12 C14 H14C 109.5 . . ?
H14A C14 H14B 109.5 . . ?
H14A C14 H14C 109.5 . . ?
H14B C14 H14C 109.5 . . ?
C12 C15 H15A 109.5 . . ?
C12 C15 H15B 109.5 . . ?
C12 C15 H15C 109.5 . . ?
H15A C15 H15B 109.5 . . ?
H15A C15 H15C 109.5 . . ?
H15B C15 H15C 109.5 . . ?
C7 C16 C17 115.19(15) . . ?
O2 C16 C7 125.76(17) . . ?
O2 C16 C17 119.05(17) . . ?
N1 C17 C16 114.86(15) . . ?
O3 C17 C16 120.34(17) . . ?
O3 C17 N1 124.80(17) . . ?
H18A C18 H18B 109.5 . . ?
H18A C18 H18C 109.5 . . ?
H18B C18 H18C 109.5 . . ?
N1 C18 H18A 109.5 . . ?
N1 C18 H18B 109.5 . . ?
N1 C18 H18C 109.5 . . ?
C1 N1 C18 120.55(15) . . ?
C17 N1 C1 121.42(14) . . ?
C17 N1 C18 117.85(15) . . ?
C9 O1 C10 111.36(15) . . ?

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
C1 C2 C3 C4 -1.0(3) . . . . ?
C1 C6 C7 C8 76.86(19) . . . . ?
C1 C6 C7 C11 -161.30(16) . . . . ?
C1 C6 C7 C16 -39.9(2) . . . . ?
C2 C1 C6 C5 1.7(3) . . . . ?
C2 C1 C6 C7 -175.82(17) . . . . ?
C2 C1 N1 C17 -158.72(19) . . . . ?
C2 C1 N1 C18 16.4(3) . . . . ?
C2 C3 C4 C5 1.5(3) . . . . ?
C3 C4 C5 C6 -0.5(3) . . . . ?
C4 C5 C6 C1 -1.1(3) . . . . ?
C4 C5 C6 C7 176.29(19) . . . . ?
C5 C6 C7 C8 -100.5(2) . . . . ?
C5 C6 C7 C11 21.3(2) . . . . ?
C5 C6 C7 C16 142.70(18) . . . . ?
C6 C1 C2 C3 -0.7(3) . . . . ?
C6 C1 N1 C17 21.3(3) . . . . ?
C6 C1 N1 C18 -163.61(18) . . . . ?
C6 C7 C8 C9 173.79(15) . . . . ?
C6 C7 C11 C10 -170.89(15) . . . . ?
C6 C7 C16 C17 55.6(2) . . . . ?
C6 C7 C16 O2 -124.2(2) . . . . ?
C7 C8 C9 O1 -56.7(2) . . . . ?
C7 C16 C17 N1 -36.8(2) . . . . ?
C7 C16 C17 O3 143.0(2) . . . . ?
C8 C7 C11 C10 -49.0(2) . . . . ?
C8 C7 C16 C17 -60.65(19) . . . . ?
C8 C7 C16 O2 119.6(3) . . . . ?
C8 C9 O1 C10 63.3(2) . . . . ?
C11 C7 C8 C9 48.66(19) . . . . ?
C11 C7 C16 C17 178.99(15) . . . . ?
C11 C7 C16 O2 -0.8(3) . . . . ?
C11 C10 C12 C13 -63.1(2) . . . . ?
C11 C10 C12 C14 176.8(2) . . . . ?
C11 C10 C12 C15 58.8(2) . . . . ?
C11 C10 O1 C9 -61.29(19) . . . . ?
C12 C10 C11 C7 175.85(17) . . . . ?
C12 C10 O1 C9 174.30(14) . . . . ?
C16 C7 C8 C9 -73.22(18) . . . . ?
C16 C7 C11 C10 71.9(2) . . . . ?
C16 C17 N1 C1 -4.5(3) . . . . ?
C16 C17 N1 C18 -179.72(18) . . . . ?
N1 C1 C2 C3 179.34(19) . . . . ?
N1 C1 C6 C5 -178.32(17) . . . . ?
N1 C1 C6 C7 4.2(2) . . . . ?
O1 C10 C11 C7 55.4(2) . . . . ?
O1 C10 C12 C13 58.9(2) . . . . ?
O1 C10 C12 C14 -61.2(2) . . . . ?
O1 C10 C12 C15 -179.23(15) . . . . ?
O2 C16 C17 N1 143.0(2) . . . . ?
O2 C16 C17 O3 -37.2(3) . . . . ?
O3 C17 N1 C1 175.7(2) . . . . ?
O3 C17 N1 C18 0.5(3) . . . . ?

_shelx_estimated_absorpt_T_max   0.991
_shelx_estimated_absorpt_T_min   0.982
_shelx_SHELXL_version_number     2014/7
_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.
;
