# Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry
# This journal is © The Royal Society of Chemistry 2013

#######################################################################
#
#                 Cambridge Crystallographic Data Centre
#                                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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#  except for the purpose of generating routine backup copies
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data_1

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C18 H16 N0 O7'
_chemical_formula_weight         344.31

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'

_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   Cc

loop_
_symmetry_equiv_pos_as_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                   8.320(10)
_cell_length_b                   28.09(3)
_cell_length_c                   7.621(9)
_cell_angle_alpha                90.00
_cell_angle_beta                 115.891(12)
_cell_angle_gamma                90.00
_cell_volume                     1602(3)
_cell_formula_units_Z            4
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    ?
_cell_measurement_theta_min      ?
_cell_measurement_theta_max      ?

_exptl_crystal_description       ?
_exptl_crystal_colour            ?
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.427
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             720
_exptl_absorpt_coefficient_mu    0.111
_exptl_absorpt_correction_type   ?
_exptl_absorpt_correction_T_min  0.9771
_exptl_absorpt_correction_T_max  0.9781
_exptl_absorpt_process_details   ?

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      296(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  ?
_diffrn_measurement_method       ?
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            4420
_diffrn_reflns_av_R_equivalents  0.0160
_diffrn_reflns_av_sigmaI/netI    0.0249
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_theta_min         2.82
_diffrn_reflns_theta_max         25.01
_reflns_number_total             2676
_reflns_number_gt                2511
_reflns_threshold_expression     >2sigma(I)

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

_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^)+(0.0440P)^2^+0.1944P] 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    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   0.1(7)
_refine_ls_number_reflns         2676
_refine_ls_number_parameters     230
_refine_ls_number_restraints     2
_refine_ls_R_factor_all          0.0336
_refine_ls_R_factor_gt           0.0308
_refine_ls_wR_factor_ref         0.0768
_refine_ls_wR_factor_gt          0.0747
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_restrained_S_all      1.056
_refine_ls_shift/su_max          0.001
_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 0.49946(16) 1.09170(4) 0.44658(18) 0.0424(3) Uani 1 1 d . . .
O2 O 0.93784(15) 0.98399(4) 0.86586(17) 0.0382(3) Uani 1 1 d . . .
O3 O 1.14235(18) 0.93735(5) 1.0789(2) 0.0587(4) Uani 1 1 d . . .
O4 O 1.12786(18) 0.84069(5) 0.9880(2) 0.0601(4) Uani 1 1 d . . .
O5 O 0.86945(18) 0.81674(5) 0.7512(2) 0.0514(4) Uani 1 1 d . . .
O6 O 0.8244(2) 1.20541(5) 0.8055(3) 0.0683(4) Uani 1 1 d . . .
O7 O 0.48760(17) 1.13359(4) 0.70380(18) 0.0420(3) Uani 1 1 d . . .
H7 H 0.3804 1.1383 0.6385 0.063 Uiso 1 1 calc R . .
C1 C 0.9806(2) 0.84984(7) 0.8643(3) 0.0374(4) Uani 1 1 d . . .
C2 C 0.9022(2) 0.89841(6) 0.8149(2) 0.0344(4) Uani 1 1 d . . .
C3 C 1.0062(2) 0.93863(6) 0.9326(3) 0.0375(4) Uani 1 1 d . . .
C4 C 0.7742(2) 0.99149(6) 0.7118(2) 0.0328(4) Uani 1 1 d . . .
C5 C 0.6677(2) 0.95321(6) 0.6098(2) 0.0337(4) Uani 1 1 d . . .
C6 C 0.7381(2) 0.90654(6) 0.6639(2) 0.0341(4) Uani 1 1 d . . .
H6 H 0.6703 0.8807 0.5943 0.041 Uiso 1 1 calc R . .
C7 C 0.4985(2) 0.96309(6) 0.4545(2) 0.0386(4) Uani 1 1 d . . .
H7A H 0.4247 0.9381 0.3854 0.046 Uiso 1 1 calc R . .
C8 C 0.4423(2) 1.00907(7) 0.4049(2) 0.0395(4) Uani 1 1 d . . .
H8 H 0.3306 1.0152 0.3032 0.047 Uiso 1 1 calc R . .
C9 C 0.5535(2) 1.04684(6) 0.5077(2) 0.0346(4) Uani 1 1 d . . .
C10 C 0.7221(2) 1.03877(6) 0.6626(2) 0.0336(4) Uani 1 1 d . . .
C11 C 0.8334(2) 1.07966(6) 0.7546(2) 0.0352(4) Uani 1 1 d . . .
H11 H 0.9519 1.0749 0.8432 0.042 Uiso 1 1 calc R . .
C12 C 0.7699(2) 1.12424(6) 0.7151(2) 0.0364(4) Uani 1 1 d . . .
C13 C 0.5727(2) 1.13231(6) 0.5815(3) 0.0359(4) Uani 1 1 d . . .
C14 C 0.5261(3) 1.17424(7) 0.4422(3) 0.0473(5) Uani 1 1 d . . .
H14A H 0.4008 1.1736 0.3558 0.071 Uiso 1 1 calc R . .
H14B H 0.5936 1.1723 0.3674 0.071 Uiso 1 1 calc R . .
H14C H 0.5545 1.2034 0.5152 0.071 Uiso 1 1 calc R . .
C15 C 0.8858(3) 1.16552(7) 0.8192(3) 0.0440(4) Uani 1 1 d . . .
C16 C 1.0810(3) 1.15659(8) 0.9435(4) 0.0583(6) Uani 1 1 d . . .
H16A H 1.1386 1.1859 1.0027 0.087 Uiso 1 1 calc R . .
H16B H 1.1345 1.1442 0.8640 0.087 Uiso 1 1 calc R . .
H16C H 1.0948 1.1339 1.0435 0.087 Uiso 1 1 calc R . .
C17 C 0.9387(3) 0.76774(7) 0.7736(3) 0.0551(6) Uani 1 1 d . . .
H17A H 1.0631 0.7686 0.7973 0.066 Uiso 1 1 calc R . .
H17B H 0.8726 0.7504 0.6534 0.066 Uiso 1 1 calc R . .
C18 C 0.9239(4) 0.74241(8) 0.9363(5) 0.0752(7) Uani 1 1 d . . .
H18A H 0.9944 0.7586 1.0567 0.113 Uiso 1 1 calc R . .
H18B H 0.9666 0.7104 0.9433 0.113 Uiso 1 1 calc R . .
H18C H 0.8012 0.7418 0.9144 0.113 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 0.0424(6) 0.0366(7) 0.0346(6) -0.0018(5) 0.0042(5) 0.0044(5)
O2 0.0283(6) 0.0374(7) 0.0374(6) -0.0027(5) 0.0038(5) -0.0011(5)
O3 0.0417(7) 0.0472(8) 0.0551(9) -0.0024(7) -0.0086(7) 0.0011(6)
O4 0.0367(8) 0.0466(8) 0.0741(11) 0.0029(7) 0.0030(7) 0.0013(6)
O5 0.0466(7) 0.0370(7) 0.0542(9) -0.0053(6) 0.0067(6) 0.0040(6)
O6 0.0778(11) 0.0381(8) 0.0695(10) -0.0069(7) 0.0141(8) -0.0044(8)
O7 0.0374(6) 0.0487(7) 0.0390(7) 0.0025(6) 0.0157(5) 0.0039(6)
C1 0.0323(10) 0.0398(10) 0.0388(9) 0.0004(8) 0.0142(8) -0.0007(8)
C2 0.0317(9) 0.0373(9) 0.0331(9) 0.0002(7) 0.0131(7) -0.0002(7)
C3 0.0315(10) 0.0362(10) 0.0381(10) 0.0018(8) 0.0090(8) 0.0016(7)
C4 0.0273(9) 0.0392(10) 0.0280(8) -0.0021(7) 0.0085(7) 0.0003(7)
C5 0.0310(10) 0.0388(9) 0.0290(9) -0.0053(7) 0.0109(7) -0.0016(7)
C6 0.0347(9) 0.0340(9) 0.0306(9) -0.0043(7) 0.0114(7) -0.0022(7)
C7 0.0345(9) 0.0406(10) 0.0330(9) -0.0084(8) 0.0074(7) -0.0044(8)
C8 0.0305(9) 0.0454(11) 0.0317(10) -0.0026(7) 0.0035(7) 0.0035(7)
C9 0.0339(9) 0.0377(10) 0.0293(9) -0.0015(7) 0.0111(7) 0.0039(7)
C10 0.0305(8) 0.0381(10) 0.0313(9) -0.0035(7) 0.0125(7) 0.0014(7)
C11 0.0304(9) 0.0388(10) 0.0339(9) -0.0026(7) 0.0119(7) -0.0012(7)
C12 0.0366(9) 0.0391(10) 0.0343(9) -0.0025(8) 0.0163(8) -0.0033(8)
C13 0.0387(9) 0.0329(9) 0.0348(9) -0.0015(7) 0.0150(8) 0.0016(7)
C14 0.0513(12) 0.0427(11) 0.0435(10) 0.0068(9) 0.0168(9) 0.0046(9)
C15 0.0536(11) 0.0388(11) 0.0382(10) -0.0012(8) 0.0186(9) -0.0069(9)
C16 0.0497(12) 0.0562(13) 0.0611(13) -0.0120(11) 0.0170(10) -0.0196(10)
C17 0.0617(13) 0.0384(11) 0.0528(12) -0.0060(10) 0.0136(10) 0.0101(9)
C18 0.0939(19) 0.0399(13) 0.102(2) 0.0078(13) 0.0520(17) 0.0043(12)

_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 C9 1.351(3) . ?
O1 C13 1.477(2) . ?
O2 C4 1.371(2) . ?
O2 C3 1.397(3) . ?
O3 C3 1.194(2) . ?
O4 C1 1.203(2) . ?
O5 C1 1.329(2) . ?
O5 C17 1.473(3) . ?
O6 C15 1.217(3) . ?
O7 C13 1.396(2) . ?
O7 H7 0.8200 . ?
C1 C2 1.488(3) . ?
C2 C6 1.367(3) . ?
C2 C3 1.467(3) . ?
C4 C5 1.394(3) . ?
C4 C10 1.396(3) . ?
C5 C7 1.416(3) . ?
C5 C6 1.421(3) . ?
C6 H6 0.9300 . ?
C7 C8 1.369(3) . ?
C7 H7A 0.9300 . ?
C8 C9 1.401(3) . ?
C8 H8 0.9300 . ?
C9 C10 1.402(3) . ?
C10 C11 1.449(3) . ?
C11 C12 1.341(3) . ?
C11 H11 0.9300 . ?
C12 C15 1.495(3) . ?
C12 C13 1.523(3) . ?
C13 C14 1.518(3) . ?
C14 H14A 0.9600 . ?
C14 H14B 0.9600 . ?
C14 H14C 0.9600 . ?
C15 C16 1.501(3) . ?
C16 H16A 0.9600 . ?
C16 H16B 0.9600 . ?
C16 H16C 0.9600 . ?
C17 C18 1.480(4) . ?
C17 H17A 0.9700 . ?
C17 H17B 0.9700 . ?
C18 H18A 0.9600 . ?
C18 H18B 0.9600 . ?
C18 H18C 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
C9 O1 C13 120.43(15) . . ?
C4 O2 C3 123.08(13) . . ?
C1 O5 C17 116.87(17) . . ?
C13 O7 H7 109.5 . . ?
O4 C1 O5 122.74(18) . . ?
O4 C1 C2 125.32(17) . . ?
O5 C1 C2 111.92(16) . . ?
C6 C2 C3 119.45(17) . . ?
C6 C2 C1 122.17(15) . . ?
C3 C2 C1 118.37(16) . . ?
O3 C3 O2 115.90(16) . . ?
O3 C3 C2 127.87(16) . . ?
O2 C3 C2 116.23(16) . . ?
O2 C4 C5 120.68(16) . . ?
O2 C4 C10 116.85(14) . . ?
C5 C4 C10 122.46(17) . . ?
C4 C5 C7 118.21(17) . . ?
C4 C5 C6 117.94(16) . . ?
C7 C5 C6 123.82(15) . . ?
C2 C6 C5 122.13(15) . . ?
C2 C6 H6 118.9 . . ?
C5 C6 H6 118.9 . . ?
C8 C7 C5 120.70(16) . . ?
C8 C7 H7A 119.6 . . ?
C5 C7 H7A 119.6 . . ?
C7 C8 C9 119.82(17) . . ?
C7 C8 H8 120.1 . . ?
C9 C8 H8 120.1 . . ?
O1 C9 C8 118.33(17) . . ?
O1 C9 C10 120.07(16) . . ?
C8 C9 C10 121.48(17) . . ?
C4 C10 C9 117.30(16) . . ?
C4 C10 C11 124.47(17) . . ?
C9 C10 C11 118.16(16) . . ?
C12 C11 C10 121.72(18) . . ?
C12 C11 H11 119.1 . . ?
C10 C11 H11 119.1 . . ?
C11 C12 C15 120.38(18) . . ?
C11 C12 C13 119.50(15) . . ?
C15 C12 C13 119.73(16) . . ?
O7 C13 O1 107.99(15) . . ?
O7 C13 C14 113.44(16) . . ?
O1 C13 C14 102.16(17) . . ?
O7 C13 C12 105.64(17) . . ?
O1 C13 C12 110.31(14) . . ?
C14 C13 C12 117.05(15) . . ?
C13 C14 H14A 109.5 . . ?
C13 C14 H14B 109.5 . . ?
H14A C14 H14B 109.5 . . ?
C13 C14 H14C 109.5 . . ?
H14A C14 H14C 109.5 . . ?
H14B C14 H14C 109.5 . . ?
O6 C15 C12 121.3(2) . . ?
O6 C15 C16 120.38(18) . . ?
C12 C15 C16 118.33(18) . . ?
C15 C16 H16A 109.5 . . ?
C15 C16 H16B 109.5 . . ?
H16A C16 H16B 109.5 . . ?
C15 C16 H16C 109.5 . . ?
H16A C16 H16C 109.5 . . ?
H16B C16 H16C 109.5 . . ?
O5 C17 C18 112.03(19) . . ?
O5 C17 H17A 109.2 . . ?
C18 C17 H17A 109.2 . . ?
O5 C17 H17B 109.2 . . ?
C18 C17 H17B 109.2 . . ?
H17A C17 H17B 107.9 . . ?
C17 C18 H18A 109.5 . . ?
C17 C18 H18B 109.5 . . ?
H18A C18 H18B 109.5 . . ?
C17 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
C17 O5 C1 O4 -4.2(3) . . . . ?
C17 O5 C1 C2 174.33(16) . . . . ?
O4 C1 C2 C6 175.66(19) . . . . ?
O5 C1 C2 C6 -2.8(2) . . . . ?
O4 C1 C2 C3 -4.0(3) . . . . ?
O5 C1 C2 C3 177.52(16) . . . . ?
C4 O2 C3 O3 -173.20(17) . . . . ?
C4 O2 C3 C2 6.8(2) . . . . ?
C6 C2 C3 O3 172.4(2) . . . . ?
C1 C2 C3 O3 -7.9(3) . . . . ?
C6 C2 C3 O2 -7.6(2) . . . . ?
C1 C2 C3 O2 172.08(14) . . . . ?
C3 O2 C4 C5 -1.4(2) . . . . ?
C3 O2 C4 C10 179.24(16) . . . . ?
O2 C4 C5 C7 178.80(16) . . . . ?
C10 C4 C5 C7 -1.9(2) . . . . ?
O2 C4 C5 C6 -3.2(2) . . . . ?
C10 C4 C5 C6 176.04(16) . . . . ?
C3 C2 C6 C5 3.4(3) . . . . ?
C1 C2 C6 C5 -176.32(15) . . . . ?
C4 C5 C6 C2 2.2(2) . . . . ?
C7 C5 C6 C2 180.00(17) . . . . ?
C4 C5 C7 C8 0.7(3) . . . . ?
C6 C5 C7 C8 -177.10(16) . . . . ?
C5 C7 C8 C9 0.4(3) . . . . ?
C13 O1 C9 C8 158.20(15) . . . . ?
C13 O1 C9 C10 -25.7(2) . . . . ?
C7 C8 C9 O1 175.53(16) . . . . ?
C7 C8 C9 C10 -0.5(3) . . . . ?
O2 C4 C10 C9 -178.84(14) . . . . ?
C5 C4 C10 C9 1.8(2) . . . . ?
O2 C4 C10 C11 4.1(2) . . . . ?
C5 C4 C10 C11 -175.16(16) . . . . ?
O1 C9 C10 C4 -176.57(15) . . . . ?
C8 C9 C10 C4 -0.6(3) . . . . ?
O1 C9 C10 C11 0.6(2) . . . . ?
C8 C9 C10 C11 176.59(16) . . . . ?
C4 C10 C11 C12 -173.08(17) . . . . ?
C9 C10 C11 C12 9.9(3) . . . . ?
C10 C11 C12 C15 177.22(15) . . . . ?
C10 C11 C12 C13 4.4(3) . . . . ?
C9 O1 C13 O7 -77.8(2) . . . . ?
C9 O1 C13 C14 162.31(15) . . . . ?
C9 O1 C13 C12 37.2(2) . . . . ?
C11 C12 C13 O7 90.45(18) . . . . ?
C15 C12 C13 O7 -82.45(19) . . . . ?
C11 C12 C13 O1 -26.0(2) . . . . ?
C15 C12 C13 O1 161.08(15) . . . . ?
C11 C12 C13 C14 -142.19(18) . . . . ?
C15 C12 C13 C14 44.9(2) . . . . ?
C11 C12 C15 O6 -169.9(2) . . . . ?
C13 C12 C15 O6 2.9(3) . . . . ?
C11 C12 C15 C16 9.5(3) . . . . ?
C13 C12 C15 C16 -177.64(18) . . . . ?
C1 O5 C17 C18 83.9(3) . . . . ?

_diffrn_measured_fraction_theta_max 0.997
_diffrn_reflns_theta_full        25.01
_diffrn_measured_fraction_theta_full 0.997
_refine_diff_density_max         0.108
_refine_diff_density_min         -0.184
_refine_diff_density_rms         0.041
_database_code_depnum_ccdc_archive 'CCDC 956393'