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_4102241
_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_absolute_configuration ad
_chemical_formula_moiety         'C30 H50 O4'
_chemical_formula_sum            'C30 H50 O4'
_chemical_formula_weight         474.70
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.194(3)
_cell_length_b                   17.305(4)
_cell_length_c                   25.660(6)
_cell_measurement_reflns_used    234
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      23.10
_cell_measurement_theta_min      4.43
_cell_volume                     5415(2)
_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 0.928
_diffrn_measured_fraction_theta_max 0.928
_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  0.1354
_diffrn_reflns_av_sigmaI/netI    0.2130
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            18408
_diffrn_reflns_theta_full        66.46
_diffrn_reflns_theta_max         66.46
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    0.583
_exptl_absorpt_correction_T_max  0.9714
_exptl_absorpt_correction_T_min  0.8089
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.165
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             2096
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.248
_refine_diff_density_min         -0.287
_refine_diff_density_rms         0.059
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.2(4)
_refine_ls_extinction_coef       0.000152(11)
_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   1.003
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     614
_refine_ls_number_reflns         8555
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.003
_refine_ls_R_factor_all          0.2062
_refine_ls_R_factor_gt           0.0803
_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^)+(0.0100P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0952
_refine_ls_wR_factor_ref         0.1295
_reflns_number_gt                3334
_reflns_number_total             8555
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja1006806_si_005.cif
_cod_data_source_block           b103_7_65s
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_absolute_configuration' value 'AD' changed to 'ad'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               4102241