# Electronic Supplementary Material (ESI) for Chemical Communications.
# This journal is © The Royal Society of Chemistry 2018

####################################################################### 
# 
# 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. 
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data_mo_aeAB_AJB_26Oct2017_0m_a
_database_code_depnum_ccdc_archive 'CCDC 1827711'
_audit_update_record             
;
2018-03-05 deposited with the CCDC.
2018-06-20 downloaded from the CCDC.
;

# SUBMISSION DETAILS

_audit_creation_method           'manual editing of SHELXL-2014/7 template'

# CHEMICAL DATA

_chemical_name_systematic        
'(7S,7aS)-dimethyl 7-acetoxy-3,7,7a-trimethyl-2-oxo-4,6,7,7a-tetrahydro-1H-indene-5,5(2H)-dicarboxylate'
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         'C18 H24 O7'
_chemical_formula_sum            'C18 H24 O7'
_chemical_formula_weight         352.37

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'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

# Crystal Data

_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_H-M_alt        'P 21/c'
_space_group_name_Hall           '-P 2ybc'

_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+1/2, -z+1/2'
'-x, -y, -z'
'x, -y-1/2, z-1/2'

_cell_length_a                   7.3100(5)
_cell_length_b                   24.5621(13)
_cell_length_c                   10.1151(7)
_cell_angle_alpha                90
_cell_angle_beta                 91.383(2)
_cell_angle_gamma                90
_cell_volume                     1815.6(2)
_cell_formula_units_Z            4
_cell_measurement_temperature    180(2)
_cell_measurement_reflns_used    9866
_cell_measurement_theta_min      2.61
_cell_measurement_theta_max      31.24

_exptl_crystal_description       'elongated plate-like'
_exptl_crystal_colour            colorless
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    1.289
_exptl_crystal_F_000             752
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.223
_exptl_crystal_size_mid          0.181
_exptl_crystal_size_min          0.143
_exptl_absorpt_coefficient_mu    0.099
_shelx_estimated_absorpt_T_min   0.978
_shelx_estimated_absorpt_T_max   0.986
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.6603
_exptl_absorpt_correction_T_max  0.7462
_exptl_absorpt_process_details   'SADABS v2016/2 (Apex3, Bruker AXS)'
_exptl_special_details           
;The value for wR₂(int) was 0.0982 before and
 0.0564 after correction. 
 The ratio of minimum to maximum transmission is 0.8849.
;

_diffrn_ambient_temperature      180(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_source                   
;high brilliance Incoatec I\ms microfocus tube
;
_diffrn_radiation_monochromator  'HELIOS multilayer mirror optics'
_diffrn_measurement_device_type  'Bruker AXS D8 Venture Duo'
_diffrn_detector                 
;Bruker AXS PHOTON II Charge-Integrating Pixel Array Detector (CPAD)
;
_diffrn_measurement_method       'shutterless rotation images,φ and ω scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            49298
_diffrn_reflns_av_unetI/netI     0.0246
_diffrn_reflns_av_R_equivalents  0.0502
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_theta_min         2.178
_diffrn_reflns_theta_max         30.504
_diffrn_reflns_theta_full        25.242
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measured_fraction_theta_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_point_group_measured_fraction_full 0.995
_reflns_number_total             5536
_reflns_number_gt                4322
_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       
;APEX3 software package v2016.5-0 (Bruker AXS)
;
_computing_cell_refinement       
;Saint V8.37A and SADABS V2016/2 (Apex3 v2016.5-0; Bruker AXS).
 Ref. for SADABS: Krause, L.; Herbst-Irmer, R.; Sheldrick G.M.; 
 Stalke D., J. Appl. Cryst., 48 (2015), 3-10.
;
_computing_data_reduction        
;Saint V8.37A and SADABS V2016/2 (Apex3 v2016.5-0; Bruker AXS).
 Ref. for SADABS: Krause, L.; Herbst-Irmer, R.; Sheldrick G.M.; 
 Stalke D., J. Appl. Cryst., 48 (2015), 3-10. 
;
_computing_structure_solution    
; SHELXT-2014 (Sheldrick, 2014). G. M. Sheldrick, Acta Cryst. 2015, A71,
  3-8.
;
_computing_structure_refinement  
; SHELXL-2014/7 (Sheldrick, 2014).G. M. Sheldrick, Acta Cryst. 2008,
  A64, 112--122.
;
_computing_molecular_graphics    
;XP (SHELXTL-NT v6.14, Bruker AXS)
;

# REFINEMENT DATA

_refine_special_details          
;The non-hydrogen atoms were refined anisotropically. Hydrogen atoms of
 the CH₃- and CH₂-groups were included at geometrically 
 idealized positions (C-H bond distances 0.98/0.99 Å) and were not
 refined. The isotropic thermal parameters of these hydrogen atoms were
 fixed at 1.2 times (CH₂-groups) and 1.5 times (CH₃-groups)
 that of the preceding carbon atom, respectively.
;
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.0527P)²+0.4881P] where P=(Fo²+2Fc²)/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     none
_refine_ls_extinction_coef       .
_refine_ls_number_reflns         5536
_refine_ls_number_parameters     232
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0574
_refine_ls_R_factor_gt           0.0409
_refine_ls_wR_factor_ref         0.1182
_refine_ls_wR_factor_gt          0.1074
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_restrained_S_all      1.056
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000

# ATOMIC COORDINATES AND DISPLACEMENT PARAMETERS

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
O1 O 0.21620(14) -0.04666(4) 0.55582(10) 0.0410(2) Uani 1 1 d . . . . .
O2 O 0.31280(12) 0.04841(3) 1.00394(9) 0.03195(19) Uani 1 1 d . . . . .
O3 O 0.48231(13) 0.12156(4) 1.05718(10) 0.0383(2) Uani 1 1 d . . . . .
O4 O 0.17581(18) 0.22794(4) 0.97916(11) 0.0524(3) Uani 1 1 d . . . . .
O5 O 0.08952(13) 0.15742(3) 1.10195(8) 0.0328(2) Uani 1 1 d . . . . .
O6 O 0.49446(11) 0.15723(3) 0.58353(8) 0.02750(17) Uani 1 1 d . . . . .
O7 O 0.72883(12) 0.19360(4) 0.70399(9) 0.0371(2) Uani 1 1 d . . . . .
C1 C 0.29402(17) 0.04912(5) 0.53262(11) 0.0293(2) Uani 1 1 d . . . . .
H1A H 0.2441 0.0551 0.4419 0.035 Uiso 1 1 calc R U . . .
H1B H 0.4281 0.0440 0.5283 0.035 Uiso 1 1 calc R U . . .
C2 C 0.20505(15) 0.00015(5) 0.59491(11) 0.0272(2) Uani 1 1 d . . . . .
C3 C 0.10493(15) 0.01839(4) 0.71125(11) 0.0240(2) Uani 1 1 d . . . . .
C4 C 0.07247(14) 0.10667(4) 0.83992(11) 0.0233(2) Uani 1 1 d . . . . .
H4A H 0.0111 0.0839 0.9064 0.028 Uiso 1 1 calc R U . . .
H4B H -0.0168 0.1338 0.8057 0.028 Uiso 1 1 calc R U . . .
C5 C 0.23810(14) 0.13607(4) 0.90508(10) 0.02130(19) Uani 1 1 d . . . . .
C6 C 0.35836(14) 0.16322(4) 0.80088(10) 0.0228(2) Uani 1 1 d . . . . .
H6A H 0.2896 0.1939 0.7603 0.027 Uiso 1 1 calc R U . . .
H6B H 0.4687 0.1784 0.8459 0.027 Uiso 1 1 calc R U . . .
C7 C 0.41888(14) 0.12460(4) 0.69041(10) 0.0220(2) Uani 1 1 d . . . . .
C8 C 0.24869(14) 0.09765(4) 0.62263(10) 0.0231(2) Uani 1 1 d . . . . .
C9 C 0.13531(14) 0.07172(4) 0.72926(10) 0.02172(19) Uani 1 1 d . . . . .
C10 C -0.00647(17) -0.01910(5) 0.79247(12) 0.0315(2) Uani 1 1 d . . . . .
H10A H 0.0389 -0.0183 0.8844 0.047 Uiso 1 1 calc R U . . .
H10B H 0.0031 -0.0562 0.7578 0.047 Uiso 1 1 calc R U . . .
H10C H -0.1347 -0.0075 0.7886 0.047 Uiso 1 1 calc R U . . .
C11 C 0.34594(15) 0.09590(4) 0.99274(11) 0.0247(2) Uani 1 1 d . . . . .
C12 C 0.5883(3) 0.08788(8) 1.1477(2) 0.0663(5) Uani 1 1 d . . . . .
H12A H 0.6938 0.1085 1.1821 0.099 Uiso 1 1 calc R U . . .
H12B H 0.6311 0.0555 1.1011 0.099 Uiso 1 1 calc R U . . .
H12C H 0.5118 0.0768 1.2212 0.099 Uiso 1 1 calc R U . . .
C13 C 0.16721(16) 0.18014(4) 0.99752(11) 0.0265(2) Uani 1 1 d . . . . .
C14 C 0.0262(2) 0.19406(6) 1.20230(13) 0.0442(3) Uani 1 1 d . . . . .
H14A H -0.0304 0.1731 1.2729 0.066 Uiso 1 1 calc R U . . .
H14B H -0.0641 0.2192 1.1632 0.066 Uiso 1 1 calc R U . . .
H14C H 0.1300 0.2148 1.2391 0.066 Uiso 1 1 calc R U . . .
C15 C 0.56217(15) 0.08324(5) 0.73869(11) 0.0276(2) Uani 1 1 d . . . . .
H15A H 0.5007 0.0519 0.7779 0.041 Uiso 1 1 calc R U . . .
H15B H 0.6433 0.1003 0.8052 0.041 Uiso 1 1 calc R U . . .
H15C H 0.6343 0.0710 0.6638 0.041 Uiso 1 1 calc R U . . .
C16 C 0.64321(16) 0.18870(5) 0.60163(12) 0.0302(2) Uani 1 1 d . . . . .
C17 C 0.6851(2) 0.21772(7) 0.47559(15) 0.0505(4) Uani 1 1 d . . . . .
H17A H 0.8173 0.2238 0.4711 0.076 Uiso 1 1 calc R U . . .
H17B H 0.6213 0.2528 0.4731 0.076 Uiso 1 1 calc R U . . .
H17C H 0.6439 0.1955 0.4001 0.076 Uiso 1 1 calc R U . . .
C18 C 0.13067(17) 0.13934(5) 0.54581(12) 0.0320(2) Uani 1 1 d . . . . .
H18A H 0.0978 0.1692 0.6049 0.048 Uiso 1 1 calc R U . . .
H18B H 0.0191 0.1216 0.5118 0.048 Uiso 1 1 calc R U . . .
H18C H 0.1999 0.1538 0.4718 0.048 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.
;

# MOLECULAR GEOMETRY

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 C2 1.2192(14) . ?
O2 C11 1.1972(13) . ?
O3 C11 1.3359(14) . ?
O3 C12 1.4451(18) . ?
O4 C13 1.1905(14) . ?
O5 C13 1.3337(13) . ?
O5 C14 1.4412(14) . ?
O6 C16 1.3431(14) . ?
O6 C7 1.4647(12) . ?
O7 C16 1.2030(15) . ?
C1 C2 1.5120(16) . ?
C1 C8 1.5407(15) . ?
C1 H1A 0.9900 . ?
C1 H1B 0.9900 . ?
C2 C3 1.4706(15) . ?
C3 C9 1.3405(15) . ?
C3 C10 1.4893(15) . ?
C4 C9 1.4918(14) . ?
C4 C5 1.5437(14) . ?
C4 H4A 0.9900 . ?
C4 H4B 0.9900 . ?
C5 C13 1.5291(14) . ?
C5 C11 1.5321(15) . ?
C5 C6 1.5404(14) . ?
C6 C7 1.5387(14) . ?
C6 H6A 0.9900 . ?
C6 H6B 0.9900 . ?
C7 C15 1.5307(15) . ?
C7 C8 1.5540(15) . ?
C8 C9 1.5162(14) . ?
C8 C18 1.5377(16) . ?
C10 H10A 0.9800 . ?
C10 H10B 0.9800 . ?
C10 H10C 0.9800 . ?
C12 H12A 0.9800 . ?
C12 H12B 0.9800 . ?
C12 H12C 0.9800 . ?
C14 H14A 0.9800 . ?
C14 H14B 0.9800 . ?
C14 H14C 0.9800 . ?
C15 H15A 0.9800 . ?
C15 H15B 0.9800 . ?
C15 H15C 0.9800 . ?
C16 C17 1.4985(17) . ?
C17 H17A 0.9800 . ?
C17 H17B 0.9800 . ?
C17 H17C 0.9800 . ?
C18 H18A 0.9800 . ?
C18 H18B 0.9800 . ?
C18 H18C 0.9800 . ?

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
C11 O3 C12 114.91(11) . . ?
C13 O5 C14 116.53(9) . . ?
C16 O6 C7 122.20(9) . . ?
C2 C1 C8 105.57(9) . . ?
C2 C1 H1A 110.6 . . ?
C8 C1 H1A 110.6 . . ?
C2 C1 H1B 110.6 . . ?
C8 C1 H1B 110.6 . . ?
H1A C1 H1B 108.8 . . ?
O1 C2 C3 125.81(11) . . ?
O1 C2 C1 125.61(11) . . ?
C3 C2 C1 108.58(9) . . ?
C9 C3 C2 108.80(9) . . ?
C9 C3 C10 128.33(10) . . ?
C2 C3 C10 122.86(10) . . ?
C9 C4 C5 109.69(8) . . ?
C9 C4 H4A 109.7 . . ?
C5 C4 H4A 109.7 . . ?
C9 C4 H4B 109.7 . . ?
C5 C4 H4B 109.7 . . ?
H4A C4 H4B 108.2 . . ?
C13 C5 C11 106.21(8) . . ?
C13 C5 C6 108.62(8) . . ?
C11 C5 C6 112.37(8) . . ?
C13 C5 C4 108.56(8) . . ?
C11 C5 C4 109.46(8) . . ?
C6 C5 C4 111.41(8) . . ?
C7 C6 C5 114.13(8) . . ?
C7 C6 H6A 108.7 . . ?
C5 C6 H6A 108.7 . . ?
C7 C6 H6B 108.7 . . ?
C5 C6 H6B 108.7 . . ?
H6A C6 H6B 107.6 . . ?
O6 C7 C15 109.34(8) . . ?
O6 C7 C6 108.60(8) . . ?
C15 C7 C6 112.58(9) . . ?
O6 C7 C8 102.69(8) . . ?
C15 C7 C8 113.10(9) . . ?
C6 C7 C8 109.99(8) . . ?
C9 C8 C18 109.24(9) . . ?
C9 C8 C1 102.98(8) . . ?
C18 C8 C1 110.04(9) . . ?
C9 C8 C7 108.09(8) . . ?
C18 C8 C7 111.88(9) . . ?
C1 C8 C7 114.14(9) . . ?
C3 C9 C4 127.69(10) . . ?
C3 C9 C8 113.91(9) . . ?
C4 C9 C8 118.40(9) . . ?
C3 C10 H10A 109.5 . . ?
C3 C10 H10B 109.5 . . ?
H10A C10 H10B 109.5 . . ?
C3 C10 H10C 109.5 . . ?
H10A C10 H10C 109.5 . . ?
H10B C10 H10C 109.5 . . ?
O2 C11 O3 124.32(11) . . ?
O2 C11 C5 125.43(10) . . ?
O3 C11 C5 110.24(9) . . ?
O3 C12 H12A 109.5 . . ?
O3 C12 H12B 109.5 . . ?
H12A C12 H12B 109.5 . . ?
O3 C12 H12C 109.5 . . ?
H12A C12 H12C 109.5 . . ?
H12B C12 H12C 109.5 . . ?
O4 C13 O5 124.15(10) . . ?
O4 C13 C5 125.65(10) . . ?
O5 C13 C5 110.19(9) . . ?
O5 C14 H14A 109.5 . . ?
O5 C14 H14B 109.5 . . ?
H14A C14 H14B 109.5 . . ?
O5 C14 H14C 109.5 . . ?
H14A C14 H14C 109.5 . . ?
H14B C14 H14C 109.5 . . ?
C7 C15 H15A 109.5 . . ?
C7 C15 H15B 109.5 . . ?
H15A C15 H15B 109.5 . . ?
C7 C15 H15C 109.5 . . ?
H15A C15 H15C 109.5 . . ?
H15B C15 H15C 109.5 . . ?
O7 C16 O6 125.28(11) . . ?
O7 C16 C17 124.89(12) . . ?
O6 C16 C17 109.81(11) . . ?
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 . . ?
C8 C18 H18A 109.5 . . ?
C8 C18 H18B 109.5 . . ?
H18A C18 H18B 109.5 . . ?
C8 C18 H18C 109.5 . . ?
H18A C18 H18C 109.5 . . ?
H18B C18 H18C 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
C8 C1 C2 O1 -176.72(12) . . . . ?
C8 C1 C2 C3 2.59(12) . . . . ?
O1 C2 C3 C9 175.20(12) . . . . ?
C1 C2 C3 C9 -4.12(13) . . . . ?
O1 C2 C3 C10 -3.73(19) . . . . ?
C1 C2 C3 C10 176.96(10) . . . . ?
C9 C4 C5 C13 168.29(8) . . . . ?
C9 C4 C5 C11 -76.18(10) . . . . ?
C9 C4 C5 C6 48.72(11) . . . . ?
C13 C5 C6 C7 -172.54(9) . . . . ?
C11 C5 C6 C7 70.25(11) . . . . ?
C4 C5 C6 C7 -53.01(11) . . . . ?
C16 O6 C7 C15 -61.29(12) . . . . ?
C16 O6 C7 C6 61.91(12) . . . . ?
C16 O6 C7 C8 178.36(9) . . . . ?
C5 C6 C7 O6 167.11(8) . . . . ?
C5 C6 C7 C15 -71.66(11) . . . . ?
C5 C6 C7 C8 55.46(11) . . . . ?
C2 C1 C8 C9 -0.35(11) . . . . ?
C2 C1 C8 C18 -116.70(10) . . . . ?
C2 C1 C8 C7 116.56(10) . . . . ?
O6 C7 C8 C9 -168.62(8) . . . . ?
C15 C7 C8 C9 73.67(10) . . . . ?
C6 C7 C8 C9 -53.16(11) . . . . ?
O6 C7 C8 C18 -48.30(11) . . . . ?
C15 C7 C8 C18 -166.02(9) . . . . ?
C6 C7 C8 C18 67.15(11) . . . . ?
O6 C7 C8 C1 77.47(10) . . . . ?
C15 C7 C8 C1 -40.25(12) . . . . ?
C6 C7 C8 C1 -167.07(9) . . . . ?
C2 C3 C9 C4 -175.45(10) . . . . ?
C10 C3 C9 C4 3.40(19) . . . . ?
C2 C3 C9 C8 4.05(13) . . . . ?
C10 C3 C9 C8 -177.10(11) . . . . ?
C5 C4 C9 C3 125.70(11) . . . . ?
C5 C4 C9 C8 -53.77(12) . . . . ?
C18 C8 C9 C3 114.62(11) . . . . ?
C1 C8 C9 C3 -2.31(12) . . . . ?
C7 C8 C9 C3 -123.43(10) . . . . ?
C18 C8 C9 C4 -65.84(12) . . . . ?
C1 C8 C9 C4 177.24(9) . . . . ?
C7 C8 C9 C4 56.12(12) . . . . ?
C12 O3 C11 O2 -1.86(19) . . . . ?
C12 O3 C11 C5 177.32(13) . . . . ?
C13 C5 C11 O2 120.55(12) . . . . ?
C6 C5 C11 O2 -120.81(12) . . . . ?
C4 C5 C11 O2 3.53(14) . . . . ?
C13 C5 C11 O3 -58.62(11) . . . . ?
C6 C5 C11 O3 60.02(11) . . . . ?
C4 C5 C11 O3 -175.64(9) . . . . ?
C14 O5 C13 O4 -5.09(19) . . . . ?
C14 O5 C13 C5 176.25(11) . . . . ?
C11 C5 C13 O4 133.21(14) . . . . ?
C6 C5 C13 O4 12.13(17) . . . . ?
C4 C5 C13 O4 -109.17(14) . . . . ?
C11 C5 C13 O5 -48.15(12) . . . . ?
C6 C5 C13 O5 -169.23(9) . . . . ?
C4 C5 C13 O5 69.47(11) . . . . ?
C7 O6 C16 O7 0.03(18) . . . . ?
C7 O6 C16 C17 -178.95(11) . . . . ?

_refine_diff_density_max         0.322
_refine_diff_density_min         -0.234
_refine_diff_density_rms         0.040



_exptl_crystal_recrystallization_method 
'Re-crystallisation from solvent: cyclohexane'
