# Electronic Supplementary Material (ESI) for ChemComm.
# 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_s15cgf4
_database_code_depnum_ccdc_archive 'CCDC 1064109'
_audit_update_record             
;
2015-05-09 deposited with the CCDC.
2015-07-06 downloaded from the CCDC.
;
_audit_creation_date             2015-04-20
_audit_creation_method           
;
Olex2 1.2
(compiled 2015.01.26 svn.r3150 for OlexSys, GUI svn.r4998)
;
_chemical_name_common            ?
_chemical_name_systematic        
;
 ? 
;
_chemical_formula_moiety         'C22 H25 N O'
_chemical_formula_sum            'C22 H25 N O'
_chemical_formula_weight         319.43
_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 0.0181 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'

_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_H-M_alt        'P 1 21/c 1'
_space_group_name_Hall           '-P 2ybc'
loop_
_space_group_symop_id
_space_group_symop_operation_xyz
1 'x, y, z'
2 '-x, y+1/2, -z+1/2'
3 '-x, -y, -z'
4 'x, -y-1/2, z-1/2'

_cell_length_a                   12.82457(18)
_cell_length_b                   6.61539(9)
_cell_length_c                   20.0798(3)
_cell_angle_alpha                90.00
_cell_angle_beta                 93.3829(13)
_cell_angle_gamma                90.00
_cell_volume                     1700.59(4)
_cell_formula_units_Z            4
_cell_measurement_reflns_used    8541
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      71.8390
_cell_measurement_theta_min      4.4280
_exptl_absorpt_coefficient_mu    0.581
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.74961
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            ?
_exptl_crystal_density_diffrn    1.248
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             688
_exptl_crystal_size_max          0.1584
_exptl_crystal_size_mid          0.0968
_exptl_crystal_size_min          0.0465
_exptl_special_details           
;
 ? 
;
_diffrn_reflns_av_R_equivalents  0.0403
_diffrn_reflns_av_unetI/netI     0.0297
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            17596
_diffrn_reflns_theta_full        71.98
_diffrn_reflns_theta_max         71.98
_diffrn_reflns_theta_min         4.41
_diffrn_ambient_environment      N2
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.1150
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, EosS2'
_diffrn_measurement_method       'ω scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_diffrn_standards_decay_%        ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_number         ?
_reflns_number_gt                3026
_reflns_number_total             3328
_reflns_threshold_expression     >2sigma(I)
_computing_cell_refinement       
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_data_collection       
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_data_reduction        
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'olex2.solve (Bourhis et al., 2015)'
_refine_diff_density_max         0.196
_refine_diff_density_min         -0.217
_refine_diff_density_rms         0.043
_refine_ls_extinction_coef       ?
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         3328
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0425
_refine_ls_R_factor_gt           0.0384
_refine_ls_restrained_S_all      1.038
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     
'calc w=1/[σ²(Fo²)+(0.0430P)²+0.5270P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0933
_refine_ls_wR_factor_ref         0.0964
_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. 
;

_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
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_calc_flag
_atom_site_disorder_assembly
_atom_site_disorder_group
_atom_site_refinement_flags_posn
O1 O 0.12665(7) 0.81714(13) 0.52684(4) 0.0265(2) Uani 1 d . . .
N1 N 0.42869(8) 0.17323(16) 0.67501(5) 0.0230(2) Uani 1 d . . .
C1 C 0.18452(9) 0.65402(17) 0.54915(6) 0.0197(2) Uani 1 d . . .
C2 C 0.20315(10) 0.61292(19) 0.61681(6) 0.0235(2) Uani 1 d . . .
H2 H 0.1718 0.6954 0.6488 0.028 Uiso 1 calc . . R
C3 C 0.26669(10) 0.45354(19) 0.63812(6) 0.0229(2) Uani 1 d . . .
H3 H 0.2795 0.4288 0.6845 0.027 Uiso 1 calc . . R
C4 C 0.31187(9) 0.32954(17) 0.59186(6) 0.0195(2) Uani 1 d . . .
C5 C 0.28950(9) 0.36963(17) 0.52392(5) 0.0187(2) Uani 1 d . . .
H5 H 0.3190 0.2833 0.4922 0.022 Uiso 1 calc . . R
C6 C 0.22653(9) 0.52870(17) 0.50025(5) 0.0179(2) Uani 1 d . . .
C7 C 0.38092(9) 0.15889(17) 0.61358(6) 0.0196(2) Uani 1 d . . .
C8 C 0.39385(10) -0.00948(19) 0.57288(6) 0.0264(3) Uani 1 d . . .
H8 H 0.3593 -0.0158 0.5298 0.032 Uiso 1 calc . . R
C9 C 0.45722(11) -0.1667(2) 0.59578(7) 0.0294(3) Uani 1 d . . .
H9 H 0.4667 -0.2825 0.5688 0.035 Uiso 1 calc . . R
C10 C 0.50663(9) -0.1522(2) 0.65879(6) 0.0261(3) Uani 1 d . . .
H10 H 0.5508 -0.2575 0.6760 0.031 Uiso 1 calc . . R
C11 C 0.49003(9) 0.0192(2) 0.69587(6) 0.0251(3) Uani 1 d . . .
H11 H 0.5243 0.0285 0.7390 0.030 Uiso 1 calc . . R
C12 C 0.20677(8) 0.56657(16) 0.42517(5) 0.0163(2) Uani 1 d . . .
C13 C 0.25520(9) 0.77105(17) 0.40566(5) 0.0195(2) Uani 1 d . . .
H13A H 0.2241 0.8815 0.4312 0.023 Uiso 1 calc . . R
H13B H 0.3313 0.7691 0.4171 0.023 Uiso 1 calc . . R
C14 C 0.23538(9) 0.81065(18) 0.33049(6) 0.0213(2) Uani 1 d . . .
H14 H 0.2662 0.9441 0.3189 0.026 Uiso 1 calc . . R
C15 C 0.28629(9) 0.64297(19) 0.29118(6) 0.0229(2) Uani 1 d . . .
H15A H 0.2754 0.6694 0.2427 0.027 Uiso 1 calc . . R
H15B H 0.3624 0.6399 0.3027 0.027 Uiso 1 calc . . R
C16 C 0.23771(9) 0.43991(18) 0.30822(5) 0.0217(2) Uani 1 d . . .
H16 H 0.2711 0.3300 0.2827 0.026 Uiso 1 calc . . R
C17 C 0.25691(9) 0.40061(17) 0.38348(5) 0.0202(2) Uani 1 d . . .
H17A H 0.3330 0.3963 0.3949 0.024 Uiso 1 calc . . R
H17B H 0.2272 0.2676 0.3947 0.024 Uiso 1 calc . . R
C18 C 0.12023(10) 0.44319(19) 0.28981(6) 0.0245(3) Uani 1 d . . .
H18A H 0.0892 0.3104 0.2999 0.029 Uiso 1 calc . . R
H18B H 0.1077 0.4696 0.2415 0.029 Uiso 1 calc . . R
C19 C 0.06927(9) 0.60947(19) 0.33000(6) 0.0228(2) Uani 1 d . . .
H19 H -0.0076 0.6124 0.3182 0.027 Uiso 1 calc . . R
C20 C 0.11731(9) 0.81388(18) 0.31317(6) 0.0233(3) Uani 1 d . . .
H20A H 0.0845 0.9223 0.3387 0.028 Uiso 1 calc . . R
H20B H 0.1039 0.8427 0.2651 0.028 Uiso 1 calc . . R
C21 C 0.08836(9) 0.56631(17) 0.40506(5) 0.0199(2) Uani 1 d . . .
H21A H 0.0582 0.4332 0.4157 0.024 Uiso 1 calc . . R
H21B H 0.0530 0.6706 0.4310 0.024 Uiso 1 calc . . R
C22 C 0.09424(11) 0.9583(2) 0.57495(7) 0.0298(3) Uani 1 d . . .
H22A H 0.0611 1.0746 0.5521 0.045 Uiso 1 calc . . GR
H22B H 0.1551 1.0039 0.6027 0.045 Uiso 1 calc . . GR
H22C H 0.0442 0.8935 0.6032 0.045 Uiso 1 calc . . GR


_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 C1 1.3699(14) . ?
O1 C22 1.4231(14) . ?
N1 C7 1.3478(15) . ?
N1 C11 1.3395(16) . ?
C1 C2 1.3924(16) . ?
C1 C6 1.4157(15) . ?
C2 H2 0.9500 . ?
C2 C3 1.3848(18) . ?
C3 H3 0.9500 . ?
C3 C4 1.3910(17) . ?
C4 C5 1.4027(15) . ?
C4 C7 1.4843(16) . ?
C5 H5 0.9500 . ?
C5 C6 1.3929(16) . ?
C6 C12 1.5344(14) . ?
C7 C8 1.3971(17) . ?
C8 H8 0.9500 . ?
C8 C9 1.3817(18) . ?
C9 H9 0.9500 . ?
C9 C10 1.3846(19) . ?
C10 H10 0.9500 . ?
C10 C11 1.3797(19) . ?
C11 H11 0.9500 . ?
C12 C13 1.5485(15) . ?
C12 C17 1.5437(14) . ?
C12 C21 1.5482(15) . ?
C13 H13A 0.9900 . ?
C13 H13B 0.9900 . ?
C13 C14 1.5384(15) . ?
C14 H14 1.0000 . ?
C14 C15 1.5300(16) . ?
C14 C20 1.5336(16) . ?
C15 H15A 0.9900 . ?
C15 H15B 0.9900 . ?
C15 C16 1.5281(17) . ?
C16 H16 1.0000 . ?
C16 C17 1.5390(14) . ?
C16 C18 1.5301(17) . ?
C17 H17A 0.9900 . ?
C17 H17B 0.9900 . ?
C18 H18A 0.9900 . ?
C18 H18B 0.9900 . ?
C18 C19 1.5333(17) . ?
C19 H19 1.0000 . ?
C19 C20 1.5319(17) . ?
C19 C21 1.5392(15) . ?
C20 H20A 0.9900 . ?
C20 H20B 0.9900 . ?
C21 H21A 0.9900 . ?
C21 H21B 0.9900 . ?
C22 H22A 0.9800 . ?
C22 H22B 0.9800 . ?
C22 H22C 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
C1 O1 C22 117.97(9) . . ?
C11 N1 C7 117.36(11) . . ?
O1 C1 C2 122.10(10) . . ?
O1 C1 C6 117.10(10) . . ?
C2 C1 C6 120.80(10) . . ?
C1 C2 H2 119.5 . . ?
C3 C2 C1 120.94(10) . . ?
C3 C2 H2 119.5 . . ?
C2 C3 H3 119.9 . . ?
C2 C3 C4 120.22(10) . . ?
C4 C3 H3 119.9 . . ?
C3 C4 C5 117.94(10) . . ?
C3 C4 C7 121.14(10) . . ?
C5 C4 C7 120.92(10) . . ?
C4 C5 H5 118.1 . . ?
C6 C5 C4 123.78(10) . . ?
C6 C5 H5 118.1 . . ?
C1 C6 C12 122.56(10) . . ?
C5 C6 C1 116.26(10) . . ?
C5 C6 C12 121.16(10) . . ?
N1 C7 C4 116.51(10) . . ?
N1 C7 C8 121.89(11) . . ?
C8 C7 C4 121.59(10) . . ?
C7 C8 H8 120.2 . . ?
C9 C8 C7 119.55(11) . . ?
C9 C8 H8 120.2 . . ?
C8 C9 H9 120.6 . . ?
C8 C9 C10 118.72(12) . . ?
C10 C9 H9 120.6 . . ?
C9 C10 H10 120.9 . . ?
C11 C10 C9 118.24(11) . . ?
C11 C10 H10 120.9 . . ?
N1 C11 C10 124.25(11) . . ?
N1 C11 H11 117.9 . . ?
C10 C11 H11 117.9 . . ?
C6 C12 C13 110.23(9) . . ?
C6 C12 C17 111.51(9) . . ?
C6 C12 C21 111.02(9) . . ?
C17 C12 C13 107.34(9) . . ?
C17 C12 C21 106.93(9) . . ?
C21 C12 C13 109.68(9) . . ?
C12 C13 H13A 109.5 . . ?
C12 C13 H13B 109.5 . . ?
H13A C13 H13B 108.1 . . ?
C14 C13 C12 110.58(9) . . ?
C14 C13 H13A 109.5 . . ?
C14 C13 H13B 109.5 . . ?
C13 C14 H14 109.5 . . ?
C15 C14 C13 109.39(9) . . ?
C15 C14 H14 109.5 . . ?
C15 C14 C20 109.81(10) . . ?
C20 C14 C13 109.18(9) . . ?
C20 C14 H14 109.5 . . ?
C14 C15 H15A 109.8 . . ?
C14 C15 H15B 109.8 . . ?
H15A C15 H15B 108.3 . . ?
C16 C15 C14 109.26(9) . . ?
C16 C15 H15A 109.8 . . ?
C16 C15 H15B 109.8 . . ?
C15 C16 H16 109.4 . . ?
C15 C16 C17 108.95(9) . . ?
C15 C16 C18 110.00(9) . . ?
C17 C16 H16 109.4 . . ?
C18 C16 H16 109.4 . . ?
C18 C16 C17 109.74(10) . . ?
C12 C17 H17A 109.3 . . ?
C12 C17 H17B 109.3 . . ?
C16 C17 C12 111.39(9) . . ?
C16 C17 H17A 109.3 . . ?
C16 C17 H17B 109.3 . . ?
H17A C17 H17B 108.0 . . ?
C16 C18 H18A 109.9 . . ?
C16 C18 H18B 109.9 . . ?
C16 C18 C19 109.10(9) . . ?
H18A C18 H18B 108.3 . . ?
C19 C18 H18A 109.9 . . ?
C19 C18 H18B 109.9 . . ?
C18 C19 H19 109.5 . . ?
C18 C19 C21 109.52(9) . . ?
C20 C19 C18 109.13(10) . . ?
C20 C19 H19 109.5 . . ?
C20 C19 C21 109.69(10) . . ?
C21 C19 H19 109.5 . . ?
C14 C20 H20A 109.7 . . ?
C14 C20 H20B 109.7 . . ?
C19 C20 C14 110.01(9) . . ?
C19 C20 H20A 109.7 . . ?
C19 C20 H20B 109.7 . . ?
H20A C20 H20B 108.2 . . ?
C12 C21 H21A 109.5 . . ?
C12 C21 H21B 109.5 . . ?
C19 C21 C12 110.62(9) . . ?
C19 C21 H21A 109.5 . . ?
C19 C21 H21B 109.5 . . ?
H21A C21 H21B 108.1 . . ?
O1 C22 H22A 109.5 . . ?
O1 C22 H22B 109.5 . . ?
O1 C22 H22C 109.5 . . ?
H22A C22 H22B 109.5 . . ?
H22A C22 H22C 109.5 . . ?
H22B C22 H22C 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
O1 C1 C2 C3 -176.38(11) . . . . ?
O1 C1 C6 C5 176.85(10) . . . . ?
O1 C1 C6 C12 -1.76(16) . . . . ?
N1 C7 C8 C9 0.02(19) . . . . ?
C1 C2 C3 C4 -0.96(19) . . . . ?
C1 C6 C12 C13 63.94(13) . . . . ?
C1 C6 C12 C17 -176.95(10) . . . . ?
C1 C6 C12 C21 -57.81(14) . . . . ?
C2 C1 C6 C5 -2.26(17) . . . . ?
C2 C1 C6 C12 179.13(11) . . . . ?
C2 C3 C4 C5 -1.02(18) . . . . ?
C2 C3 C4 C7 179.50(11) . . . . ?
C3 C4 C5 C6 1.39(18) . . . . ?
C3 C4 C7 N1 -24.18(16) . . . . ?
C3 C4 C7 C8 154.55(12) . . . . ?
C4 C5 C6 C1 0.23(17) . . . . ?
C4 C5 C6 C12 178.86(10) . . . . ?
C4 C7 C8 C9 -178.64(12) . . . . ?
C5 C4 C7 N1 156.36(11) . . . . ?
C5 C4 C7 C8 -24.92(17) . . . . ?
C5 C6 C12 C13 -114.61(11) . . . . ?
C5 C6 C12 C17 4.51(15) . . . . ?
C5 C6 C12 C21 123.64(11) . . . . ?
C6 C1 C2 C3 2.68(19) . . . . ?
C6 C12 C13 C14 -179.78(9) . . . . ?
C6 C12 C17 C16 -179.55(9) . . . . ?
C6 C12 C21 C19 178.64(9) . . . . ?
C7 N1 C11 C10 -0.39(18) . . . . ?
C7 C4 C5 C6 -179.12(11) . . . . ?
C7 C8 C9 C10 -0.2(2) . . . . ?
C8 C9 C10 C11 0.07(19) . . . . ?
C9 C10 C11 N1 0.23(19) . . . . ?
C11 N1 C7 C4 178.98(10) . . . . ?
C11 N1 C7 C8 0.26(17) . . . . ?
C12 C13 C14 C15 -60.88(12) . . . . ?
C12 C13 C14 C20 59.30(12) . . . . ?
C13 C12 C17 C16 -58.73(12) . . . . ?
C13 C12 C21 C19 56.58(12) . . . . ?
C13 C14 C15 C16 60.91(12) . . . . ?
C13 C14 C20 C19 -60.73(12) . . . . ?
C14 C15 C16 C17 -60.27(12) . . . . ?
C14 C15 C16 C18 60.07(12) . . . . ?
C15 C14 C20 C19 59.20(12) . . . . ?
C15 C16 C17 C12 60.48(12) . . . . ?
C15 C16 C18 C19 -60.83(12) . . . . ?
C16 C18 C19 C20 60.14(12) . . . . ?
C16 C18 C19 C21 -59.95(12) . . . . ?
C17 C12 C13 C14 58.59(11) . . . . ?
C17 C12 C21 C19 -59.51(12) . . . . ?
C17 C16 C18 C19 59.02(12) . . . . ?
C18 C16 C17 C12 -60.01(13) . . . . ?
C18 C19 C20 C14 -59.65(12) . . . . ?
C18 C19 C21 C12 61.46(12) . . . . ?
C20 C14 C15 C16 -58.89(12) . . . . ?
C20 C19 C21 C12 -58.29(12) . . . . ?
C21 C12 C13 C14 -57.24(11) . . . . ?
C21 C12 C17 C16 58.91(12) . . . . ?
C21 C19 C20 C14 60.34(12) . . . . ?
C22 O1 C1 C2 6.45(17) . . . . ?
C22 O1 C1 C6 -172.64(11) . . . . ?

