Total Synthesis, Revised Structure, and Biological Evaluation of Biyouyanagin A and Analogues Thereof
K. C. Nicolaou; T. Robert Wu; David Sarlah; David M. Shaw; Eric Rowcliffe; Dennis R. Burton; Journal of the American Chemical Society 130 (2008) 11114–11121; doi:10.1021/ja802805c

data_4108201
_publ_section_title
;
 Total Synthesis, Revised Structure, and Biological Evaluation of
 Biyouyanagin A and Analogues Thereof
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11114
_journal_page_last               11121
_journal_paper_doi               10.1021/ja802805c
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C26 H32 O4'
_chemical_formula_weight         408.52
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 104.63(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.840(2)
_cell_length_b                   6.7500(13)
_cell_length_c                   18.509(4)
_cell_measurement_reflns_used    2746
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.00
_cell_measurement_theta_min      3.00
_cell_volume                     1189.5(5)
_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 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0339
_diffrn_reflns_av_sigmaI/netI    0.0620
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            8793
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.14
_diffrn_standards_decay_%        1
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  0.9977
_exptl_absorpt_correction_T_min  0.9828
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1999)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.141
_exptl_crystal_density_meas      0
_exptl_crystal_description       Plate-like
_exptl_crystal_F_000             440
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.179
_refine_diff_density_min         -0.121
_refine_diff_density_rms         0.033
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.113
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     276
_refine_ls_number_reflns         4156
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.113
_refine_ls_R_factor_all          0.1175
_refine_ls_R_factor_gt           0.0743
_refine_ls_shift/su_max          0.025
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0730P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1523
_refine_ls_wR_factor_ref         0.1693
_reflns_number_gt                2701
_reflns_number_total             4156
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja802805c-file005.cif
_cod_data_source_block           bbwu
_cod_original_cell_volume        1189.6(4)
_cod_database_code               4108201