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# This journal is © The Royal Society of Chemistry 2013

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#                                CCDC 
# 
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#  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.
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#  fide research purposes only. It may contain copyright material
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data_cd28585

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C20 H22 O8'
_chemical_formula_weight         390.38

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 0.0000 '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'
O O 0.0106 0.0000 '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                   8.9355(9)
_cell_length_b                   10.2534(11)
_cell_length_c                   22.396(2)
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_volume                     2051.9(4)
_cell_formula_units_Z            4
_cell_measurement_temperature    293(2)
_cell_measurement_reflns_used    2532
_cell_measurement_theta_min      4.369
_cell_measurement_theta_max      42.556

_exptl_crystal_description       prismatic
_exptl_crystal_colour            colorless
_exptl_crystal_size_max          0.309
_exptl_crystal_size_mid          0.264
_exptl_crystal_size_min          0.187
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.264
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             824
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_correction_T_min  0.76379
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_process_details   sadabs

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      293(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            11322
_diffrn_reflns_av_R_equivalents  0.0552
_diffrn_reflns_av_sigmaI/netI    0.0402
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_theta_min         1.82
_diffrn_reflns_theta_max         26.00
_reflns_number_total             2314
_reflns_number_gt                1904
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       'Bruker SMART'
_computing_cell_refinement       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'

_refine_special_details          
; 
 Refinement of F^2^ against ALL reflections.  The weighted R-factor wR and 
 goodness of fit S are based on F^2^, conventional R-factors R are based 
 on F, with F set to zero for negative F^2^. The threshold expression of 
 F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is 
 not relevant to the choice of reflections for refinement.  R-factors based 
 on F^2^ 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/[\s^2^(Fo^2^)+(0.0501P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     SHELXL
_refine_ls_extinction_coef       0.0093(14)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   10(10)
_chemical_absolute_configuration ad
_refine_ls_number_reflns         2314
_refine_ls_number_parameters     258
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0511
_refine_ls_R_factor_gt           0.0409
_refine_ls_wR_factor_ref         0.0964
_refine_ls_wR_factor_gt          0.0916
_refine_ls_goodness_of_fit_ref   0.985
_refine_ls_restrained_S_all      0.985
_refine_ls_shift/su_max          0.046
_refine_ls_shift/su_mean         0.006

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 0.59555(19) 0.2460(2) 0.12394(8) 0.0541(5) Uani 1 1 d . . .
O2 O 0.7461(3) 0.0869(4) 0.15231(18) 0.1110(15) Uani 1 1 d . . .
O3 O 0.2714(2) 0.08535(19) 0.18756(8) 0.0494(5) Uani 1 1 d . . .
O4 O 0.3100(3) -0.0006(2) 0.27871(9) 0.0734(7) Uani 1 1 d . . .
O5 O 0.27651(19) 0.29737(19) 0.26302(7) 0.0476(5) Uani 1 1 d . . .
O6 O 0.4826(3) 0.3003(3) 0.31857(9) 0.0937(9) Uani 1 1 d . . .
O7 O 0.1389(2) 0.34721(19) 0.01771(8) 0.0628(6) Uani 1 1 d . . .
O8 O 0.1315(3) 0.9551(2) 0.05061(10) 0.0755(7) Uani 1 1 d . . .
C1 C 0.3541(3) 0.2143(3) 0.08372(11) 0.0448(6) Uani 1 1 d . . .
H1A H 0.2782 0.1488 0.0763 0.054 Uiso 1 1 calc R . .
H1B H 0.4042 0.2323 0.0462 0.054 Uiso 1 1 calc R . .
C2 C 0.4660(3) 0.1611(3) 0.12731(11) 0.0449(7) Uani 1 1 d . . .
H2 H 0.4942 0.0721 0.1159 0.054 Uiso 1 1 calc R . .
C3 C 0.4063(3) 0.1621(3) 0.19067(11) 0.0431(6) Uani 1 1 d . . .
H3 H 0.4784 0.1232 0.2184 0.052 Uiso 1 1 calc R . .
C4 C 0.3676(3) 0.3001(3) 0.20908(10) 0.0402(6) Uani 1 1 d . . .
H4 H 0.4604 0.3477 0.2174 0.048 Uiso 1 1 calc R . .
C5 C 0.2812(3) 0.3722(3) 0.16298(10) 0.0408(6) Uani 1 1 d . . .
H5 H 0.2260 0.4447 0.1748 0.049 Uiso 1 1 calc R . .
C6 C 0.2791(3) 0.3380(2) 0.10566(10) 0.0381(6) Uani 1 1 d . . .
C7 C 0.1899(3) 0.4095(3) 0.05980(11) 0.0427(6) Uani 1 1 d . . .
C8 C 0.1684(3) 0.5530(3) 0.06224(10) 0.0389(6) Uani 1 1 d . . .
C9 C 0.2624(3) 0.6379(3) 0.09371(10) 0.0407(6) Uani 1 1 d . . .
H9 H 0.3372 0.6038 0.1180 0.049 Uiso 1 1 calc R . .
C10 C 0.2458(3) 0.7707(3) 0.08922(11) 0.0469(7) Uani 1 1 d . . .
H10 H 0.3093 0.8259 0.1103 0.056 Uiso 1 1 calc R . .
C11 C 0.1344(3) 0.8223(3) 0.05335(12) 0.0501(7) Uani 1 1 d . . .
C12 C 0.0392(3) 0.7408(3) 0.02301(12) 0.0518(7) Uani 1 1 d . . .
H12 H -0.0371 0.7752 -0.0004 0.062 Uiso 1 1 calc R . .
C13 C 0.0573(3) 0.6078(3) 0.02745(12) 0.0485(7) Uani 1 1 d . . .
H13 H -0.0070 0.5533 0.0064 0.058 Uiso 1 1 calc R . .
C14 C 0.7307(4) 0.1930(5) 0.13429(18) 0.0760(10) Uani 1 1 d . . .
C15 C 0.8492(4) 0.2891(4) 0.11909(17) 0.0970(14) Uani 1 1 d . . .
H15A H 0.9441 0.2579 0.1332 0.145 Uiso 1 1 calc R . .
H15B H 0.8268 0.3712 0.1377 0.145 Uiso 1 1 calc R . .
H15C H 0.8531 0.3004 0.0766 0.145 Uiso 1 1 calc R . .
C16 C 0.2354(4) 0.0101(3) 0.23473(14) 0.0585(8) Uani 1 1 d . . .
C17 C 0.0902(4) -0.0589(4) 0.22345(17) 0.0951(14) Uani 1 1 d . . .
H17A H 0.0753 -0.0683 0.1812 0.143 Uiso 1 1 calc R . .
H17B H 0.0095 -0.0091 0.2402 0.143 Uiso 1 1 calc R . .
H17C H 0.0928 -0.1436 0.2418 0.143 Uiso 1 1 calc R . .
C18 C 0.3499(4) 0.2911(3) 0.31506(12) 0.0613(8) Uani 1 1 d . . .
C19 C 0.2457(4) 0.2723(4) 0.36580(13) 0.0833(12) Uani 1 1 d . . .
H19A H 0.1918 0.1921 0.3605 0.125 Uiso 1 1 calc R . .
H19B H 0.1764 0.3437 0.3673 0.125 Uiso 1 1 calc R . .
H19C H 0.3015 0.2687 0.4024 0.125 Uiso 1 1 calc R . .
C20 C 0.0274(5) 1.0146(4) 0.01110(18) 0.0996(14) Uani 1 1 d . . .
H20A H 0.0464 0.9856 -0.0290 0.149 Uiso 1 1 calc R . .
H20B H 0.0379 1.1076 0.0131 0.149 Uiso 1 1 calc R . .
H20C H -0.0725 0.9906 0.0225 0.149 Uiso 1 1 calc R . .

loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
O1 0.0423(10) 0.0577(13) 0.0623(12) -0.0059(10) 0.0126(9) -0.0073(10)
O2 0.0565(16) 0.103(3) 0.165(4) 0.053(3) -0.014(2) 0.0165(18)
O3 0.0467(10) 0.0517(12) 0.0499(10) 0.0095(9) -0.0008(9) -0.0100(9)
O4 0.0759(15) 0.0809(17) 0.0635(13) 0.0293(12) 0.0000(12) -0.0004(13)
O5 0.0417(10) 0.0685(13) 0.0328(9) 0.0014(9) -0.0035(8) 0.0023(9)
O6 0.0643(16) 0.160(3) 0.0567(13) 0.0093(17) -0.0208(12) -0.0025(17)
O7 0.0849(15) 0.0526(13) 0.0508(11) -0.0049(10) -0.0260(11) -0.0054(12)
O8 0.0859(16) 0.0414(13) 0.0992(17) -0.0017(11) -0.0501(14) 0.0033(12)
C1 0.0510(15) 0.0434(16) 0.0400(13) -0.0021(12) 0.0010(12) -0.0049(13)
C2 0.0369(13) 0.0462(16) 0.0515(16) -0.0031(14) 0.0071(12) -0.0011(12)
C3 0.0336(12) 0.0490(17) 0.0468(15) 0.0064(13) -0.0030(12) -0.0030(12)
C4 0.0353(13) 0.0523(17) 0.0329(12) 0.0030(12) -0.0024(11) -0.0037(12)
C5 0.0401(13) 0.0406(15) 0.0417(14) -0.0001(11) 0.0005(12) 0.0007(12)
C6 0.0396(13) 0.0376(14) 0.0370(13) 0.0008(11) -0.0017(11) -0.0052(11)
C7 0.0461(15) 0.0469(17) 0.0351(13) 0.0015(12) -0.0012(12) -0.0077(13)
C8 0.0384(13) 0.0444(16) 0.0339(13) 0.0018(11) -0.0017(11) -0.0061(12)
C9 0.0384(13) 0.0494(17) 0.0343(12) 0.0023(11) -0.0056(11) -0.0013(12)
C10 0.0443(15) 0.0491(17) 0.0472(14) -0.0022(13) -0.0102(13) -0.0066(13)
C11 0.0544(17) 0.0425(17) 0.0534(16) 0.0006(13) -0.0118(14) 0.0038(14)
C12 0.0501(15) 0.0511(18) 0.0541(16) 0.0035(15) -0.0190(14) 0.0011(14)
C13 0.0495(15) 0.0505(18) 0.0456(15) -0.0039(14) -0.0130(13) -0.0065(14)
C14 0.0386(17) 0.089(3) 0.101(3) -0.011(2) 0.0095(18) 0.0025(19)
C15 0.0516(19) 0.126(4) 0.114(3) -0.035(3) 0.025(2) -0.025(2)
C16 0.0602(18) 0.0549(19) 0.0604(17) 0.0099(16) 0.0103(16) -0.0042(16)
C17 0.085(3) 0.106(3) 0.094(3) 0.018(2) 0.010(2) -0.045(3)
C18 0.062(2) 0.082(2) 0.0402(15) 0.0007(16) -0.0095(15) 0.0022(17)
C19 0.096(3) 0.113(3) 0.0410(15) 0.0120(17) 0.0030(18) 0.010(2)
C20 0.116(3) 0.048(2) 0.135(3) 0.008(2) -0.070(3) 0.006(2)

_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 C14 1.345(4) . ?
O1 C2 1.450(3) . ?
O2 C14 1.169(5) . ?
O3 C16 1.347(3) . ?
O3 C3 1.441(3) . ?
O4 C16 1.194(3) . ?
O5 C18 1.339(3) . ?
O5 C4 1.457(3) . ?
O6 C18 1.192(3) . ?
O7 C7 1.226(3) . ?
O8 C11 1.363(3) . ?
O8 C20 1.422(4) . ?
C1 C2 1.500(4) . ?
C1 C6 1.516(4) . ?
C1 H1A 0.9700 . ?
C1 H1B 0.9700 . ?
C2 C3 1.516(3) . ?
C2 H2 0.9800 . ?
C3 C4 1.513(4) . ?
C3 H3 0.9800 . ?
C4 C5 1.486(3) . ?
C4 H4 0.9800 . ?
C5 C6 1.331(3) . ?
C5 H5 0.9300 . ?
C6 C7 1.492(3) . ?
C7 C8 1.486(4) . ?
C8 C13 1.381(4) . ?
C8 C9 1.400(3) . ?
C9 C10 1.373(4) . ?
C9 H9 0.9300 . ?
C10 C11 1.384(4) . ?
C10 H10 0.9300 . ?
C11 C12 1.372(4) . ?
C12 C13 1.377(4) . ?
C12 H12 0.9300 . ?
C13 H13 0.9300 . ?
C14 C15 1.485(5) . ?
C15 H15A 0.9600 . ?
C15 H15B 0.9600 . ?
C15 H15C 0.9600 . ?
C16 C17 1.499(5) . ?
C17 H17A 0.9600 . ?
C17 H17B 0.9600 . ?
C17 H17C 0.9600 . ?
C18 C19 1.481(4) . ?
C19 H19A 0.9600 . ?
C19 H19B 0.9600 . ?
C19 H19C 0.9600 . ?
C20 H20A 0.9600 . ?
C20 H20B 0.9600 . ?
C20 H20C 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 O1 C2 117.7(3) . . ?
C16 O3 C3 118.4(2) . . ?
C18 O5 C4 116.7(2) . . ?
C11 O8 C20 118.0(3) . . ?
C2 C1 C6 112.9(2) . . ?
C2 C1 H1A 109.0 . . ?
C6 C1 H1A 109.0 . . ?
C2 C1 H1B 109.0 . . ?
C6 C1 H1B 109.0 . . ?
H1A C1 H1B 107.8 . . ?
O1 C2 C1 106.2(2) . . ?
O1 C2 C3 109.0(2) . . ?
C1 C2 C3 111.8(2) . . ?
O1 C2 H2 109.9 . . ?
C1 C2 H2 109.9 . . ?
C3 C2 H2 109.9 . . ?
O3 C3 C4 109.4(2) . . ?
O3 C3 C2 104.2(2) . . ?
C4 C3 C2 110.0(2) . . ?
O3 C3 H3 111.0 . . ?
C4 C3 H3 111.0 . . ?
C2 C3 H3 111.0 . . ?
O5 C4 C5 107.19(19) . . ?
O5 C4 C3 109.6(2) . . ?
C5 C4 C3 113.2(2) . . ?
O5 C4 H4 108.9 . . ?
C5 C4 H4 108.9 . . ?
C3 C4 H4 108.9 . . ?
C6 C5 C4 123.1(2) . . ?
C6 C5 H5 118.4 . . ?
C4 C5 H5 118.4 . . ?
C5 C6 C7 122.8(2) . . ?
C5 C6 C1 121.8(2) . . ?
C7 C6 C1 115.1(2) . . ?
O7 C7 C8 119.7(2) . . ?
O7 C7 C6 118.2(3) . . ?
C8 C7 C6 122.0(2) . . ?
C13 C8 C9 117.6(2) . . ?
C13 C8 C7 118.4(2) . . ?
C9 C8 C7 123.8(2) . . ?
C10 C9 C8 121.0(2) . . ?
C10 C9 H9 119.5 . . ?
C8 C9 H9 119.5 . . ?
C9 C10 C11 120.0(2) . . ?
C9 C10 H10 120.0 . . ?
C11 C10 H10 120.0 . . ?
O8 C11 C12 125.0(3) . . ?
O8 C11 C10 114.9(2) . . ?
C12 C11 C10 120.0(3) . . ?
C11 C12 C13 119.6(3) . . ?
C11 C12 H12 120.2 . . ?
C13 C12 H12 120.2 . . ?
C12 C13 C8 121.9(3) . . ?
C12 C13 H13 119.1 . . ?
C8 C13 H13 119.1 . . ?
O2 C14 O1 122.8(3) . . ?
O2 C14 C15 127.8(4) . . ?
O1 C14 C15 109.4(4) . . ?
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 . . ?
O4 C16 O3 124.5(3) . . ?
O4 C16 C17 125.3(3) . . ?
O3 C16 C17 110.2(3) . . ?
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 . . ?
O6 C18 O5 122.7(3) . . ?
O6 C18 C19 125.8(3) . . ?
O5 C18 C19 111.5(3) . . ?
C18 C19 H19A 109.5 . . ?
C18 C19 H19B 109.5 . . ?
H19A C19 H19B 109.5 . . ?
C18 C19 H19C 109.5 . . ?
H19A C19 H19C 109.5 . . ?
H19B C19 H19C 109.5 . . ?
O8 C20 H20A 109.5 . . ?
O8 C20 H20B 109.5 . . ?
H20A C20 H20B 109.5 . . ?
O8 C20 H20C 109.5 . . ?
H20A C20 H20C 109.5 . . ?
H20B C20 H20C 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
C14 O1 C2 C1 -148.9(3) . . . . ?
C14 O1 C2 C3 90.4(3) . . . . ?
C6 C1 C2 O1 -74.2(2) . . . . ?
C6 C1 C2 C3 44.6(3) . . . . ?
C16 O3 C3 C4 -97.6(3) . . . . ?
C16 O3 C3 C2 144.8(2) . . . . ?
O1 C2 C3 O3 174.8(2) . . . . ?
C1 C2 C3 O3 57.7(3) . . . . ?
O1 C2 C3 C4 57.6(3) . . . . ?
C1 C2 C3 C4 -59.5(3) . . . . ?
C18 O5 C4 C5 -151.5(2) . . . . ?
C18 O5 C4 C3 85.2(3) . . . . ?
O3 C3 C4 O5 51.8(2) . . . . ?
C2 C3 C4 O5 165.73(18) . . . . ?
O3 C3 C4 C5 -67.8(3) . . . . ?
C2 C3 C4 C5 46.1(3) . . . . ?
O5 C4 C5 C6 -141.4(2) . . . . ?
C3 C4 C5 C6 -20.4(3) . . . . ?
C4 C5 C6 C7 178.9(2) . . . . ?
C4 C5 C6 C1 5.7(4) . . . . ?
C2 C1 C6 C5 -17.8(3) . . . . ?
C2 C1 C6 C7 168.5(2) . . . . ?
C5 C6 C7 O7 -148.0(3) . . . . ?
C1 C6 C7 O7 25.6(3) . . . . ?
C5 C6 C7 C8 35.2(4) . . . . ?
C1 C6 C7 C8 -151.2(2) . . . . ?
O7 C7 C8 C13 18.5(4) . . . . ?
C6 C7 C8 C13 -164.8(2) . . . . ?
O7 C7 C8 C9 -155.7(2) . . . . ?
C6 C7 C8 C9 21.1(4) . . . . ?
C13 C8 C9 C10 -1.0(4) . . . . ?
C7 C8 C9 C10 173.2(2) . . . . ?
C8 C9 C10 C11 0.3(4) . . . . ?
C20 O8 C11 C12 -3.4(5) . . . . ?
C20 O8 C11 C10 175.3(3) . . . . ?
C9 C10 C11 O8 -177.8(3) . . . . ?
C9 C10 C11 C12 1.0(4) . . . . ?
O8 C11 C12 C13 177.3(3) . . . . ?
C10 C11 C12 C13 -1.4(4) . . . . ?
C11 C12 C13 C8 0.6(5) . . . . ?
C9 C8 C13 C12 0.6(4) . . . . ?
C7 C8 C13 C12 -174.0(3) . . . . ?
C2 O1 C14 O2 -9.0(6) . . . . ?
C2 O1 C14 C15 170.8(3) . . . . ?
C3 O3 C16 O4 -2.2(4) . . . . ?
C3 O3 C16 C17 178.5(3) . . . . ?
C4 O5 C18 O6 7.3(5) . . . . ?
C4 O5 C18 C19 -172.9(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
C10 H10 O6 0.93 2.46 3.201(3) 136.4 3_655
C15 H15B O4 0.96 2.59 3.451(4) 148.9 3_655
C4 H4 O4 0.98 2.58 3.543(3) 168.8 3_655
C20 H20B O7 0.96 2.62 3.556(4) 165.5 1_565

_diffrn_measured_fraction_theta_max 1.000
_diffrn_reflns_theta_full        26.00
_diffrn_measured_fraction_theta_full 1.000
_refine_diff_density_max         0.139
_refine_diff_density_min         -0.149
_refine_diff_density_rms         0.031

_database_code_depnum_ccdc_archive 'CCDC 938966'