The Total Synthesis of Spirotenuipesines A and B
Mingji Dai; Samuel J. Danishefsky; Journal of the American Chemical Society 129 (2007) 3498–3499; doi:10.1021/ja069164r

data_4109234
_publ_section_title
;
 The Total Synthesis of Spirotenuipesines A and B
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3498
_journal_page_last               3499
_journal_paper_doi               10.1021/ja069164r
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C15 H27 I O3 Si'
_chemical_formula_weight         410.36
_chemical_name_systematic
; 
 ? 
;
_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                 98.046(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.338(2)
_cell_length_b                   7.5857(8)
_cell_length_c                   12.0204(13)
_cell_measurement_reflns_used    3900
_cell_measurement_temperature    243(2)
_cell_measurement_theta_max      27.51
_cell_measurement_theta_min      2.87
_cell_volume                     1836.2(3)
_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, 1990)'
_diffrn_ambient_temperature      243(2)
_diffrn_measured_fraction_theta_full 0.946
_diffrn_measured_fraction_theta_max 0.946
_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  0.0303
_diffrn_reflns_av_sigmaI/netI    0.0390
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            12284
_diffrn_reflns_theta_full        28.27
_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         1.01
_exptl_absorpt_coefficient_mu    1.814
_exptl_absorpt_correction_T_max  0.9646
_exptl_absorpt_correction_T_min  0.7130
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.484
_exptl_crystal_description       PLATE
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.183
_refine_diff_density_min         -0.506
_refine_diff_density_rms         0.188
_refine_ls_extinction_coef       0.0100(7)
_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   1.078
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         4293
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0822
_refine_ls_R_factor_gt           0.0416
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0634P)^2^+0.1496P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0993
_refine_ls_wR_factor_ref         0.1240
_reflns_number_gt                2701
_reflns_number_total             4293
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja069164rsi20061221_054614.cif
_cod_data_source_block           mdis10
_cod_database_code               4109234