Biomimetic Syntheses from Squalene-Like Precursors: Synthesis of ent-Abudinol B and Reassessment of the Structure of Muzitone
Matthew A. Boone; Rongbiao Tong; Frank E. McDonald; Sheri Lense; Rui Cao; Kenneth I. Hardcastle; Journal of the American Chemical Society 132 (2010) 5300–5308; doi:10.1021/ja1006806

data_4102239
_publ_section_title
;
 Biomimetic Syntheses from Squalene-Like Precursors: Synthesis of
 ent-Abudinol B and Reassessment of the Structure of Muzitone
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5300
_journal_page_last               5308
_journal_paper_doi               10.1021/ja1006806
_journal_volume                  132
_journal_year                    2010
_chemical_formula_moiety         'C34 H54 O6'
_chemical_formula_sum            'C34 H54 O6'
_chemical_formula_weight         558.77
_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                 101.349(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.2539(17)
_cell_length_b                   7.4121(9)
_cell_length_c                   16.7467(18)
_cell_measurement_reflns_used    5802
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      66.40
_cell_measurement_theta_min      3.40
_cell_volume                     1613.0(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, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.926
_diffrn_measured_fraction_theta_max 0.926
_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           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0338
_diffrn_reflns_av_sigmaI/netI    0.0479
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            10661
_diffrn_reflns_theta_full        66.71
_diffrn_reflns_theta_max         66.71
_diffrn_reflns_theta_min         2.69
_exptl_absorpt_coefficient_mu    0.610
_exptl_absorpt_correction_T_max  0.9088
_exptl_absorpt_correction_T_min  0.8242
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.150
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             612
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.396
_refine_diff_density_min         -0.331
_refine_diff_density_rms         0.088
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.1(4)
_refine_ls_extinction_coef       0.0180(17)
_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   1.131
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     362
_refine_ls_number_reflns         4737
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.130
_refine_ls_R_factor_all          0.0980
_refine_ls_R_factor_gt           0.0608
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1143P)^2^+1.3503P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1614
_refine_ls_wR_factor_ref         0.2206
_reflns_number_gt                3518
_reflns_number_total             4737
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja1006806_si_003.cif
_cod_data_source_block           bio3_6_237s
_cod_database_code               4102239