Oleanane-type triterpenoids from the leaves and twigs of Fatsia polycarpa.
Cheng, Shi-Yie; Wang, Chao-Min; Hsu, Yuan-Man; Huang, Tsurng-Juhn; Chou, Shen-Chieh; Lin, En-Hung; Chou, Chang-Hung; Journal of natural products 74 (2011) 1744–1750; doi:10.1021/np2002435

data_1501829
_publ_section_title
;
 Oleanane-type triterpenoids from the leaves and twigs of Fatsia
 polycarpa.
;
_journal_issue                   8
_journal_name_full               'Journal of natural products'
_journal_page_first              1744
_journal_page_last               1750
_journal_paper_doi               10.1021/np2002435
_journal_volume                  74
_journal_year                    2011
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C30 H46 O4'
_chemical_formula_sum            'C30 H46 O4'
_chemical_formula_weight         470.67
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_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_date             2010-05-28'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.0495(3)
_cell_length_b                   17.7248(6)
_cell_length_c                   19.2463(7)
_cell_measurement_reflns_used    7352
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      29.2405
_cell_measurement_theta_min      2.9656
_cell_volume                     2745.98(17)
_computing_cell_refinement
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.29 (release 10-06-2008 CrysAlis171 .NET) 
(compiled Jun 10 2008,16:49:55) 
;
_computing_data_collection
; 
CrysAlis CCD, Oxford Diffraction Ltd., 
Version 1.171.32.29 (release 10-06-2008 CrysAlis171 .NET) 
(compiled Jun 10 2008,16:49:55) 
;
_computing_data_reduction
; 
CrysAlis RED, Oxford Diffraction Ltd., 
Version 1.171.32.29 (release 10-06-2008 CrysAlis171 .NET) 
(compiled Jun 10 2008,16:49:55) 
;
_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      110(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.894
_diffrn_measurement_device_type  'CCD detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0296
_diffrn_reflns_av_sigmaI/netI    0.0589
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            14549
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         29.32
_diffrn_reflns_theta_min         2.97
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.73371
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.46 (release 27-08-2009 CrysAlis171 .NET) 
(compiled Aug 27 2009,17:19:36) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.138
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             1032
_exptl_crystal_size_max          0.58
_exptl_crystal_size_mid          0.42
_exptl_crystal_size_min          0.36
_refine_diff_density_max         0.284
_refine_diff_density_min         -0.254
_refine_diff_density_rms         0.050
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.2(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.934
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     331
_refine_ls_number_reflns         6412
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.934
_refine_ls_R_factor_all          0.0569
_refine_ls_R_factor_gt           0.0444
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0716P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1066
_refine_ls_wR_factor_ref         0.1109
_reflns_number_gt                5076
_reflns_number_total             6412
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            np2002435_si_001.cif
_cod_data_source_block           3a,24-dihydroxyolean-11,13(18)-dien-28-oic_acid
_cod_database_code               1501829