Internal Azomethine Ylide Cycloaddition Methodology for Access to the Substitution Pattern of Aziridinomitosene A
Drew R. Bobeck; Don L. Warner; Edwin Vedejs; Journal of Organic Chemistry 72 (2007) 8506–8518; doi:10.1021/jo7013559

data_4022985
_publ_section_title
;
 Internal Azomethine Ylide Cycloaddition Methodology
 for Access to the Substitution Pattern of Aziridinomitosene A
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              8506
_journal_page_last               8518
_journal_paper_doi               10.1021/jo7013559
_journal_volume                  72
_journal_year                    2007
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C34 H29 N3 O5, 0.5(C6 H14)'
_chemical_formula_sum            'C37 H36 N3 O5'
_chemical_formula_weight         602.69
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   32.158(9)
_cell_length_b                   8.977(3)
_cell_length_c                   11.478(3)
_cell_measurement_reflns_used    2315
_cell_measurement_temperature    108(2)
_cell_measurement_theta_max      15.86
_cell_measurement_theta_min      2.35
_cell_volume                     3313.7(16)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART-1K'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      108(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.1692
_diffrn_reflns_av_sigmaI/netI    0.0579
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            20438
_diffrn_reflns_theta_full        16.55
_diffrn_reflns_theta_max         16.55
_diffrn_reflns_theta_min         1.88
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.9984
_exptl_absorpt_correction_T_min  0.9731
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  Blessing, R. Acta Cryst. (1995) A51 33-38.
  Sheldrick, G.  SADABS (Version 2.10) Bruker/Siemens area
  detector absorption and other corrections, University of
  Gottingen, Germany 2003.
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.208
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1276
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.509
_refine_diff_density_min         -0.319
_refine_diff_density_rms         0.074
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -4(10)
_refine_ls_extinction_coef       0.020(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.339
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     212
_refine_ls_number_reflns         1081
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.339
_refine_ls_R_factor_all          0.1054
_refine_ls_R_factor_gt           0.0928
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1476P)^2^+7.9767P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2662
_refine_ls_wR_factor_ref         0.2744
_reflns_number_gt                912
_reflns_number_total             1081
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo7013559-File002.cif
_cod_data_source_block           dbred
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
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_cod_database_code               4022985