Total Synthesis of Dictyodendrins B and E
Jingjing Liang; Weimin Hu; Pengyu Tao; Yanxing Jia; Journal of Organic Chemistry 78 (2013) 5810–5815; doi:10.1021/jo400841d

data_4028323
_publ_section_title
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 Total Synthesis of Dictyodendrins B and E
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_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              5810
_journal_page_last               5815
_journal_paper_doi               10.1021/jo400841d
_journal_volume                  78
_journal_year                    2013
_chemical_formula_moiety         'C53 H45 N2 O7, C H2 Cl2'
_chemical_formula_sum            'C54 H47 Cl2 N2 O7'
_chemical_formula_weight         906.84
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                104.652(18)
_cell_angle_beta                 97.656(14)
_cell_angle_gamma                90.99(2)
_cell_formula_units_Z            2
_cell_length_a                   11.9172(16)
_cell_length_b                   13.957(4)
_cell_length_c                   14.318(2)
_cell_measurement_reflns_used    38
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      12.55
_cell_measurement_theta_min      5.85
_cell_volume                     2280.3(8)
_computing_cell_refinement       'XSCANS (Bruker, 1997)'
_computing_data_collection       'XSCANS (Bruker, 1997)'
_computing_data_reduction        'XSCANS (Bruker, 1997)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  'SHELXTL (Bruker, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0428
_diffrn_reflns_av_sigmaI/netI    0.0471
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            9722
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.11
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.199
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.321
_exptl_crystal_density_meas      ?
_exptl_crystal_description       prism
_exptl_crystal_F_000             950
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.485
_refine_diff_density_min         -0.516
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.076
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     595
_refine_ls_number_reflns         8415
_refine_ls_number_restraints     14
_refine_ls_restrained_S_all      1.195
_refine_ls_R_factor_all          0.1036
_refine_ls_R_factor_gt           0.0676
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0010P)^2^+2.5000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1263
_refine_ls_wR_factor_ref         0.1419
_reflns_number_gt                5539
_reflns_number_total             8415
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            jo400841d_si_003.cif
_cod_data_source_block           jiayx-3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_original_cell_volume        2280.4(7)
_cod_database_code               4028323