Total Synthesis and Structural Revision of (\±)-Tricholomalides A and B
Zhang Wang; Sun-Joon Min; Samuel J. Danishefsky; Journal of the American Chemical Society 131 (2009) 10848–10849; doi:10.1021/ja9049433

data_4104862
_publ_section_title
;
 Total Synthesis and Structural Revision of (\+-)-Tricholomalides A and B
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10848
_journal_page_last               10849
_journal_paper_doi               10.1021/ja9049433
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C20 H28 O5'
_chemical_formula_weight         348.42
_space_group_IT_number           2
_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                99.637(3)
_cell_angle_beta                 93.661(3)
_cell_angle_gamma                96.032(3)
_cell_formula_units_Z            4
_cell_length_a                   6.2107(12)
_cell_length_b                   16.315(3)
_cell_length_c                   17.969(4)
_cell_measurement_reflns_used    3618
_cell_measurement_temperature    125(2)
_cell_measurement_theta_max      27.892
_cell_measurement_theta_min      2.308
_cell_volume                     1779.0(6)
_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      125(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0979
_diffrn_reflns_av_sigmaI/netI    0.1257
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            21514
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.15
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.9982
_exptl_absorpt_correction_T_min  0.9818
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.301
_exptl_crystal_description       PLATE
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.198
_refine_diff_density_min         -0.994
_refine_diff_density_rms         0.087
_refine_ls_extinction_coef       0.004(2)
_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   1.062
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     449
_refine_ls_number_reflns         7285
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.1737
_refine_ls_R_factor_gt           0.0867
_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^)+(0.1395P)^2^+0.2144P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2247
_refine_ls_wR_factor_ref         0.2755
_reflns_number_gt                3666
_reflns_number_total             7285
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja9049433_si_006.cif
_cod_data_source_block           adot
_cod_database_code               4104862