Enantiospecific Total Synthesis of the Hapalindoles, Fischerindoles, and Welwitindolinones via a Redox Economic Approach
Jeremy M. Richter; Yoshihiro Ishihara; Takeshi Masuda; Brandon W. Whitefield; Tomás Llamas; Antti Pohjakallio; Phil S. Baran; Journal of the American Chemical Society 130 (2008) 17938–17954; doi:10.1021/ja806981k

data_4108948
_publ_section_title
;
 Enantiospecific Total Synthesis of the Hapalindoles, Fischerindoles, and
 Welwitindolinones via a Redox Economic Approach
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              17938
_journal_page_last               17954
_journal_paper_doi               10.1021/ja806981k
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C18 H20 N O'
_chemical_formula_weight         266.35
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           1
_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                81.785(2)
_cell_angle_beta                 78.731(2)
_cell_angle_gamma                88.759(2)
_cell_formula_units_Z            4
_cell_length_a                   10.3970(10)
_cell_length_b                   10.6917(10)
_cell_length_c                   13.8862(13)
_cell_measurement_reflns_used    3702
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.4
_cell_measurement_theta_min      2.8
_cell_volume                     1498.3(2)
_computing_cell_refinement       'Bruker SAINT+'
_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 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0186
_diffrn_reflns_av_sigmaI/netI    0.0492
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            11215
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.51
_diffrn_standards_decay_%        <1%
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  0.9871
_exptl_absorpt_correction_T_min  0.9779
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1999)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.181
_exptl_crystal_density_meas      0
_exptl_crystal_description       Parallelpiped
_exptl_crystal_F_000             572
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.144
_refine_diff_density_min         -0.158
_refine_diff_density_rms         0.029
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.5(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.007
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     733
_refine_ls_number_reflns         8910
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.007
_refine_ls_R_factor_all          0.0794
_refine_ls_R_factor_gt           0.0535
_refine_ls_shift/su_max          0.217
_refine_ls_shift/su_mean         0.006
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0590P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1123
_refine_ls_wR_factor_ref         0.1263
_reflns_number_gt                6393
_reflns_number_total             8910
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja806981k_si_010.cif
_cod_data_source_block           jric
_cod_database_code               4108948