Total synthesis of (-)- and ent-(+)-vindoline and related alkaloids.
Ishikawa, Hayato; Elliott, Gregory I; Velcicky, Juraj; Choi, Younggi; Boger, Dale L; Journal of the American Chemical Society 128 (2006) 10596–10612; doi:10.1021/ja061256t

data_4101281
_publ_section_title
;
 Total synthesis of (-)- and ent-(+)-vindoline and related alkaloids.
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_journal_issue                   32
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10596
_journal_page_last               10612
_journal_paper_doi               10.1021/ja061256t
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C30 H34 N2 O6'
_chemical_formula_weight         518.59
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 104.187(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.2501(15)
_cell_length_b                   9.0998(10)
_cell_length_c                   22.700(3)
_cell_measurement_reflns_used    3831
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.8
_cell_measurement_theta_min      2.4
_cell_volume                     2653.5(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT+'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0431
_diffrn_reflns_av_sigmaI/netI    0.0656
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            18079
_diffrn_reflns_theta_full        28.03
_diffrn_reflns_theta_max         28.03
_diffrn_reflns_theta_min         1.85
_diffrn_standards_decay_%        1
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9928
_exptl_absorpt_correction_T_min  0.9804
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1999) '
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.298
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             1104
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.232
_refine_diff_density_min         -0.201
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     347
_refine_ls_number_reflns         6305
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.1062
_refine_ls_R_factor_gt           0.0525
_refine_ls_shift/su_max          0.052
_refine_ls_shift/su_mean         0.017
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0610P)^2^+0.0117P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1246
_refine_ls_wR_factor_ref         0.1464
_reflns_number_gt                3443
_reflns_number_total             6305
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja061256trom20060221_080400.cif
_cod_data_source_block           mmil
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' 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_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4101281