# Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry.
# This journal is © The Royal Society of Chemistry 2014

#######################################################################
#
#                 Cambridge Crystallographic Data Centre
#                                CCDC 
# 
#######################################################################
# 
#  This CIF contains data from an original supplementary publication
#  deposited with the CCDC, and may include chemical, crystal,
#  experimental, refinement, atomic coordinates,
#  anisotropic displacement parameters and molecular geometry data,
#  as required by the journal to which it was submitted.
#
#  This CIF is provided on the understanding that it is used for bona
#  fide research purposes only. It may contain copyright material
#  of the CCDC or of third parties, and may not be copied or further
#  disseminated in any form, whether machine-readable or not,
#  except for the purpose of generating routine backup copies
#  on your local computer system.
# 
#  For further information on the CCDC, data deposition and
#  data retrieval see:
#                         www.ccdc.cam.ac.uk
#
#  Bona fide researchers may freely download Mercury and enCIFer
#  from this site to visualise CIF-encoded structures and 
#  to carry out CIF format checking respectively.
#
data_q20d

_audit_creation_method           SHELXTL
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C28 H27 N O3'
_chemical_formula_weight         425.51
_chemical_absolute_configuration unk

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0181 0.0091 '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 0.0311 0.0180 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0492 0.0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_symmetry_cell_setting           Orthorhombic
_symmetry_space_group_name_H-M   P2(1)2(1)2(1)

loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, -y, z+1/2'
'-x, y+1/2, -z+1/2'
'x+1/2, -y+1/2, -z'

_cell_length_a                   8.9295(7)
_cell_length_b                   13.0992(13)
_cell_length_c                   19.384(2)
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_volume                     2267.4(4)
_cell_formula_units_Z            4
_cell_measurement_temperature    100(2)
_cell_measurement_reflns_used    1797
_cell_measurement_theta_min      4.07
_cell_measurement_theta_max      68.53

_exptl_crystal_description       'Irregular plate'
_exptl_crystal_colour            colourless
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.01
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.247
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             904
_exptl_absorpt_coefficient_mu    0.639
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.661
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_process_details   ?

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      100(2)
_diffrn_radiation_wavelength     1.54178
_diffrn_radiation_type           CuK\a
_diffrn_radiation_source         'Bruker MicroStar microfocus rotating anode'
_diffrn_radiation_monochromator  'Helios multilayer optics'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'φ and ω scans'
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         0
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        0.00
_diffrn_reflns_number            14011
_diffrn_reflns_av_R_equivalents  0.0681
_diffrn_reflns_av_sigmaI/netI    0.0683
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_theta_min         4.07
_diffrn_reflns_theta_max         70.12
_reflns_number_total             3976
_reflns_number_gt                3137
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       'Bruker APEX2'
_computing_cell_refinement       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'

_refine_special_details          
; 
 Refinement of F² against ALL reflections.  The weighted R-factor wR and 
 goodness of fit S are based on F², conventional R-factors R are based 
 on F, with F set to zero for negative F². The threshold expression of 
 F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is 
 not relevant to the choice of reflections for refinement.  R-factors based 
 on F² are statistically about twice as large as those based on F, and R- 
 factors based on ALL data will be even larger. 
;

_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'calc w=1/[σ²(Fo²)+(0.0824P)²+0.0946P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   difmap
_refine_ls_hydrogen_treatment    mixed
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.3(4)
_refine_ls_number_reflns         3976
_refine_ls_number_parameters     302
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0765
_refine_ls_R_factor_gt           0.0579
_refine_ls_wR_factor_ref         0.1542
_refine_ls_wR_factor_gt          0.1421
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_restrained_S_all      1.057
_refine_ls_shift/su_max          0.000
_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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
O1 O 0.1344(2) 0.75118(17) 0.00875(13) 0.0527(5) Uani 1 1 d . . .
O2 O 0.1759(2) 0.83039(19) 0.10923(14) 0.0607(6) Uani 1 1 d . . .
O3 O -0.1913(3) 0.64695(18) 0.16567(14) 0.0610(6) Uani 1 1 d . . .
N N -0.0217(3) 0.7151(2) 0.09509(15) 0.0507(6) Uani 1 1 d . . .
C1 C -0.4864(5) 0.8924(5) 0.2101(3) 0.0867(14) Uani 1 1 d . . .
H1A H -0.465(6) 0.963(4) 0.230(3) 0.081(14) Uiso 1 1 d . . .
H1B H -0.581(6) 0.902(4) 0.176(3) 0.083(14) Uiso 1 1 d . . .
C2 C -0.3951(4) 0.8152(3) 0.2075(2) 0.0679(9) Uani 1 1 d . . .
H2 H -0.420(4) 0.758(3) 0.176(2) 0.057(10) Uiso 1 1 d . . .
C3 C -0.2520(4) 0.8058(3) 0.2483(2) 0.0653(9) Uani 1 1 d . . .
H3A H -0.2527 0.7398 0.2732 0.078 Uiso 1 1 calc R . .
H3B H -0.2491 0.8609 0.2833 0.078 Uiso 1 1 calc R . .
C4 C -0.1069(4) 0.8120(3) 0.2035(2) 0.0571(8) Uani 1 1 d . . .
C5 C -0.1095(3) 0.7181(2) 0.15513(19) 0.0523(7) Uani 1 1 d . . .
C6 C 0.1026(3) 0.7723(2) 0.0755(2) 0.0532(8) Uani 1 1 d . . .
C7 C 0.0206(3) 0.6850(2) -0.01960(18) 0.0512(7) Uani 1 1 d . . .
H7A H 0.0658 0.6325 -0.0498 0.061 Uiso 1 1 calc R . .
H7B H -0.0533 0.7247 -0.0466 0.061 Uiso 1 1 calc R . .
C8 C -0.0531(3) 0.6360(2) 0.04333(18) 0.0489(7) Uani 1 1 d . . .
H8 H -0.1636 0.6308 0.0358 0.059 Uiso 1 1 calc R . .
C9 C -0.1127(4) 0.9125(3) 0.1628(2) 0.0637(9) Uani 1 1 d . . .
H9A H -0.1896 0.9077 0.1269 0.095 Uiso 1 1 calc R . .
H9B H -0.0151 0.9253 0.1414 0.095 Uiso 1 1 calc R . .
H9C H -0.1373 0.9687 0.1942 0.095 Uiso 1 1 calc R . .
C10 C 0.0264(4) 0.8030(3) 0.2528(2) 0.0583(8) Uani 1 1 d . . .
C11 C 0.0614(5) 0.7109(3) 0.2830(2) 0.0726(10) Uani 1 1 d . . .
H11 H 0.0039 0.6522 0.2717 0.087 Uiso 1 1 calc R . .
C12 C 0.1796(6) 0.7017(4) 0.3299(3) 0.0877(14) Uani 1 1 d . . .
H12 H 0.2022 0.6377 0.3504 0.105 Uiso 1 1 calc R . .
C13 C 0.2627(5) 0.7870(4) 0.3457(3) 0.0858(14) Uani 1 1 d . . .
H13 H 0.3451 0.7813 0.3765 0.103 Uiso 1 1 calc R . .
C14 C 0.2283(4) 0.8792(4) 0.3178(3) 0.0736(11) Uani 1 1 d . . .
H14 H 0.2834 0.9382 0.3307 0.088 Uiso 1 1 calc R . .
C15 C 0.1126(4) 0.8871(3) 0.2704(2) 0.0618(9) Uani 1 1 d . . .
H15 H 0.0921 0.9513 0.2496 0.074 Uiso 1 1 calc R . .
C16 C 0.0102(3) 0.5305(2) 0.06392(19) 0.0506(7) Uani 1 1 d . . .
H16 H -0.0306 0.5145 0.1107 0.061 Uiso 1 1 calc R . .
C17 C 0.1803(3) 0.5332(2) 0.0708(2) 0.0524(7) Uani 1 1 d . . .
C18 C 0.2758(3) 0.5080(2) 0.0167(2) 0.0550(8) Uani 1 1 d . . .
H18 H 0.2356 0.4836 -0.0256 0.066 Uiso 1 1 calc R . .
C19 C 0.4299(4) 0.5184(3) 0.0243(3) 0.0661(10) Uani 1 1 d . . .
H19 H 0.4942 0.5018 -0.0132 0.079 Uiso 1 1 calc R . .
C20 C 0.4903(4) 0.5524(3) 0.0852(3) 0.0769(13) Uani 1 1 d . . .
H20 H 0.5957 0.5592 0.0899 0.092 Uiso 1 1 calc R . .
C21 C 0.3973(5) 0.5767(3) 0.1397(3) 0.0732(12) Uani 1 1 d . . .
H21 H 0.4388 0.6004 0.1819 0.088 Uiso 1 1 calc R . .
C22 C 0.2432(4) 0.5665(3) 0.1329(2) 0.0623(9) Uani 1 1 d . . .
H22 H 0.1799 0.5823 0.1708 0.075 Uiso 1 1 calc R . .
C23 C -0.0438(3) 0.4455(2) 0.01555(19) 0.0503(7) Uani 1 1 d . . .
C24 C -0.1333(3) 0.4613(3) -0.0424(2) 0.0623(9) Uani 1 1 d . . .
H24 H -0.1624 0.5286 -0.0547 0.075 Uiso 1 1 calc R . .
C25 C -0.1802(4) 0.3791(3) -0.0824(3) 0.0725(10) Uani 1 1 d . . .
H25 H -0.2430 0.3906 -0.1212 0.087 Uiso 1 1 calc R . .
C26 C -0.1362(4) 0.2813(3) -0.0661(2) 0.0687(10) Uani 1 1 d . . .
H26 H -0.1660 0.2255 -0.0942 0.082 Uiso 1 1 calc R . .
C27 C -0.0478(4) 0.2651(3) -0.0082(2) 0.0661(9) Uani 1 1 d . . .
H27 H -0.0191 0.1977 0.0042 0.079 Uiso 1 1 calc R . .
C28 C -0.0018(3) 0.3462(3) 0.0312(2) 0.0593(8) Uani 1 1 d . . .
H28 H 0.0603 0.3341 0.0702 0.071 Uiso 1 1 calc R . .


_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
O1 C6 1.352(5) . ?
O1 C7 1.444(4) . ?
O2 C6 1.198(4) . ?
O3 C5 1.202(4) . ?
N C6 1.392(4) . ?
N C5 1.404(5) . ?
N C8 1.469(4) . ?
C1 C2 1.299(7) . ?
C1 H1A 1.02(6) . ?
C1 H1B 1.08(5) . ?
C2 C3 1.508(6) . ?
C2 H2 1.00(4) . ?
C3 C4 1.563(5) . ?
C3 H3A 0.9900 . ?
C3 H3B 0.9900 . ?
C4 C10 1.532(5) . ?
C4 C9 1.535(5) . ?
C4 C5 1.546(5) . ?
C7 C8 1.528(5) . ?
C7 H7A 0.9900 . ?
C7 H7B 0.9900 . ?
C8 C16 1.546(4) . ?
C8 H8 1.0000 . ?
C9 H9A 0.9800 . ?
C9 H9B 0.9800 . ?
C9 H9C 0.9800 . ?
C10 C11 1.377(6) . ?
C10 C15 1.387(5) . ?
C11 C12 1.398(6) . ?
C11 H11 0.9500 . ?
C12 C13 1.375(8) . ?
C12 H12 0.9500 . ?
C13 C14 1.359(7) . ?
C13 H13 0.9500 . ?
C14 C15 1.386(6) . ?
C14 H14 0.9500 . ?
C15 H15 0.9500 . ?
C16 C17 1.525(4) . ?
C16 C23 1.533(5) . ?
C16 H16 1.0000 . ?
C17 C18 1.392(5) . ?
C17 C22 1.398(6) . ?
C18 C19 1.391(5) . ?
C18 H18 0.9500 . ?
C19 C20 1.373(7) . ?
C19 H19 0.9500 . ?
C20 C21 1.381(7) . ?
C20 H20 0.9500 . ?
C21 C22 1.389(6) . ?
C21 H21 0.9500 . ?
C22 H22 0.9500 . ?
C23 C28 1.388(5) . ?
C23 C24 1.394(5) . ?
C24 C25 1.390(6) . ?
C24 H24 0.9500 . ?
C25 C26 1.376(6) . ?
C25 H25 0.9500 . ?
C26 C27 1.390(6) . ?
C26 H26 0.9500 . ?
C27 C28 1.371(5) . ?
C27 H27 0.9500 . ?
C28 H28 0.9500 . ?

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
C6 O1 C7 109.8(2) . . ?
C6 N C5 131.0(3) . . ?
C6 N C8 110.2(3) . . ?
C5 N C8 118.6(2) . . ?
C2 C1 H1A 127(3) . . ?
C2 C1 H1B 124(3) . . ?
H1A C1 H1B 106(4) . . ?
C1 C2 C3 125.1(4) . . ?
C1 C2 H2 118(2) . . ?
C3 C2 H2 117(2) . . ?
C2 C3 C4 114.0(3) . . ?
C2 C3 H3A 108.8 . . ?
C4 C3 H3A 108.8 . . ?
C2 C3 H3B 108.8 . . ?
C4 C3 H3B 108.8 . . ?
H3A C3 H3B 107.7 . . ?
C10 C4 C9 114.4(3) . . ?
C10 C4 C5 109.2(3) . . ?
C9 C4 C5 111.8(3) . . ?
C10 C4 C3 107.0(3) . . ?
C9 C4 C3 107.6(3) . . ?
C5 C4 C3 106.5(3) . . ?
O3 C5 N 117.3(3) . . ?
O3 C5 C4 121.5(3) . . ?
N C5 C4 121.1(3) . . ?
O2 C6 O1 122.5(3) . . ?
O2 C6 N 128.9(4) . . ?
O1 C6 N 108.6(3) . . ?
O1 C7 C8 104.6(3) . . ?
O1 C7 H7A 110.8 . . ?
C8 C7 H7A 110.8 . . ?
O1 C7 H7B 110.8 . . ?
C8 C7 H7B 110.8 . . ?
H7A C7 H7B 108.9 . . ?
N C8 C7 99.6(2) . . ?
N C8 C16 112.6(3) . . ?
C7 C8 C16 115.1(3) . . ?
N C8 H8 109.7 . . ?
C7 C8 H8 109.7 . . ?
C16 C8 H8 109.7 . . ?
C4 C9 H9A 109.5 . . ?
C4 C9 H9B 109.5 . . ?
H9A C9 H9B 109.5 . . ?
C4 C9 H9C 109.5 . . ?
H9A C9 H9C 109.5 . . ?
H9B C9 H9C 109.5 . . ?
C11 C10 C15 117.8(4) . . ?
C11 C10 C4 120.6(3) . . ?
C15 C10 C4 121.6(3) . . ?
C10 C11 C12 121.5(4) . . ?
C10 C11 H11 119.2 . . ?
C12 C11 H11 119.2 . . ?
C13 C12 C11 118.9(4) . . ?
C13 C12 H12 120.6 . . ?
C11 C12 H12 120.6 . . ?
C14 C13 C12 120.7(4) . . ?
C14 C13 H13 119.6 . . ?
C12 C13 H13 119.6 . . ?
C13 C14 C15 119.9(4) . . ?
C13 C14 H14 120.0 . . ?
C15 C14 H14 120.0 . . ?
C14 C15 C10 121.1(4) . . ?
C14 C15 H15 119.4 . . ?
C10 C15 H15 119.4 . . ?
C17 C16 C23 112.6(3) . . ?
C17 C16 C8 111.4(2) . . ?
C23 C16 C8 112.1(3) . . ?
C17 C16 H16 106.8 . . ?
C23 C16 H16 106.8 . . ?
C8 C16 H16 106.8 . . ?
C18 C17 C22 118.5(3) . . ?
C18 C17 C16 122.6(3) . . ?
C22 C17 C16 118.9(3) . . ?
C19 C18 C17 120.2(4) . . ?
C19 C18 H18 119.9 . . ?
C17 C18 H18 119.9 . . ?
C20 C19 C18 120.8(4) . . ?
C20 C19 H19 119.6 . . ?
C18 C19 H19 119.6 . . ?
C19 C20 C21 119.8(3) . . ?
C19 C20 H20 120.1 . . ?
C21 C20 H20 120.1 . . ?
C20 C21 C22 120.0(4) . . ?
C20 C21 H21 120.0 . . ?
C22 C21 H21 120.0 . . ?
C21 C22 C17 120.7(4) . . ?
C21 C22 H22 119.7 . . ?
C17 C22 H22 119.7 . . ?
C28 C23 C24 118.0(3) . . ?
C28 C23 C16 117.5(3) . . ?
C24 C23 C16 124.5(3) . . ?
C25 C24 C23 120.5(4) . . ?
C25 C24 H24 119.8 . . ?
C23 C24 H24 119.8 . . ?
C26 C25 C24 120.5(4) . . ?
C26 C25 H25 119.8 . . ?
C24 C25 H25 119.8 . . ?
C25 C26 C27 119.3(4) . . ?
C25 C26 H26 120.4 . . ?
C27 C26 H26 120.4 . . ?
C28 C27 C26 120.2(4) . . ?
C28 C27 H27 119.9 . . ?
C26 C27 H27 119.9 . . ?
C27 C28 C23 121.5(4) . . ?
C27 C28 H28 119.2 . . ?
C23 C28 H28 119.2 . . ?

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 -111.0(5) . . . . ?
C2 C3 C4 C10 179.1(3) . . . . ?
C2 C3 C4 C9 55.7(4) . . . . ?
C2 C3 C4 C5 -64.2(4) . . . . ?
C6 N C5 O3 -165.0(3) . . . . ?
C8 N C5 O3 10.6(4) . . . . ?
C6 N C5 C4 18.2(5) . . . . ?
C8 N C5 C4 -166.2(3) . . . . ?
C10 C4 C5 O3 99.6(4) . . . . ?
C9 C4 C5 O3 -132.8(4) . . . . ?
C3 C4 C5 O3 -15.6(5) . . . . ?
C10 C4 C5 N -83.8(4) . . . . ?
C9 C4 C5 N 43.8(4) . . . . ?
C3 C4 C5 N 161.0(3) . . . . ?
C7 O1 C6 O2 -175.7(3) . . . . ?
C7 O1 C6 N 5.4(3) . . . . ?
C5 N C6 O2 9.9(6) . . . . ?
C8 N C6 O2 -165.9(3) . . . . ?
C5 N C6 O1 -171.2(3) . . . . ?
C8 N C6 O1 13.0(3) . . . . ?
C6 O1 C7 C8 -20.4(3) . . . . ?
C6 N C8 C7 -24.0(3) . . . . ?
C5 N C8 C7 159.6(2) . . . . ?
C6 N C8 C16 98.5(3) . . . . ?
C5 N C8 C16 -78.0(3) . . . . ?
O1 C7 C8 N 25.8(3) . . . . ?
O1 C7 C8 C16 -94.9(3) . . . . ?
C9 C4 C10 C11 -168.1(4) . . . . ?
C5 C4 C10 C11 -42.0(5) . . . . ?
C3 C4 C10 C11 72.9(4) . . . . ?
C9 C4 C10 C15 13.9(5) . . . . ?
C5 C4 C10 C15 140.0(3) . . . . ?
C3 C4 C10 C15 -105.1(4) . . . . ?
C15 C10 C11 C12 0.1(6) . . . . ?
C4 C10 C11 C12 -178.0(4) . . . . ?
C10 C11 C12 C13 -0.3(8) . . . . ?
C11 C12 C13 C14 1.8(8) . . . . ?
C12 C13 C14 C15 -3.0(7) . . . . ?
C13 C14 C15 C10 2.8(6) . . . . ?
C11 C10 C15 C14 -1.3(6) . . . . ?
C4 C10 C15 C14 176.8(3) . . . . ?
N C8 C16 C17 -61.7(4) . . . . ?
C7 C8 C16 C17 51.5(4) . . . . ?
N C8 C16 C23 171.1(2) . . . . ?
C7 C8 C16 C23 -75.7(3) . . . . ?
C23 C16 C17 C18 33.7(4) . . . . ?
C8 C16 C17 C18 -93.3(4) . . . . ?
C23 C16 C17 C22 -149.1(3) . . . . ?
C8 C16 C17 C22 83.9(4) . . . . ?
C22 C17 C18 C19 -1.5(5) . . . . ?
C16 C17 C18 C19 175.7(3) . . . . ?
C17 C18 C19 C20 0.8(5) . . . . ?
C18 C19 C20 C21 0.0(5) . . . . ?
C19 C20 C21 C22 0.2(6) . . . . ?
C20 C21 C22 C17 -1.0(5) . . . . ?
C18 C17 C22 C21 1.7(5) . . . . ?
C16 C17 C22 C21 -175.6(3) . . . . ?
C17 C16 C23 C28 57.2(4) . . . . ?
C8 C16 C23 C28 -176.2(3) . . . . ?
C17 C16 C23 C24 -123.5(3) . . . . ?
C8 C16 C23 C24 3.1(4) . . . . ?
C28 C23 C24 C25 0.9(5) . . . . ?
C16 C23 C24 C25 -178.3(3) . . . . ?
C23 C24 C25 C26 -1.4(6) . . . . ?
C24 C25 C26 C27 1.8(6) . . . . ?
C25 C26 C27 C28 -1.7(6) . . . . ?
C26 C27 C28 C23 1.3(5) . . . . ?
C24 C23 C28 C27 -0.9(5) . . . . ?
C16 C23 C28 C27 178.5(3) . . . . ?

loop_
_geom_hbond_atom_site_label_D
_geom_hbond_atom_site_label_H
_geom_hbond_atom_site_label_A
_geom_hbond_distance_DH
_geom_hbond_distance_HA
_geom_hbond_distance_DA
_geom_hbond_angle_DHA
_geom_hbond_site_symmetry_A
C8 H8 O1 1.00 2.53 3.315(3) 135.4 4_465
C16 H16 O3 1.00 2.49 3.075(4) 116.9 .

_diffrn_measured_fraction_theta_max 0.953
_diffrn_reflns_theta_full        66.00
_diffrn_measured_fraction_theta_full 0.971
_refine_diff_density_max         0.230
_refine_diff_density_min         -0.202
_refine_diff_density_rms         0.046
_database_code_depnum_ccdc_archive 'CCDC 1019501'
