Arisandilactone A, a new triterpenoid from the fruits of Schisandra arisanensis.
Cheng, Yuan-Bin; Liao, Tzu-Ching; Lo, I-Wen; Chen, Yu-Chen; Kuo, Yuh-Chi; Chen, Shun-Ying; Chien, Ching-Te; Shen, Ya-Ching; Organic letters 12 (2010) 1016–1019; doi:10.1021/ol100024r

data_1502838
_publ_section_title
;
 Arisandilactone A, a new triterpenoid from the fruits of Schisandra
 arisanensis.
;
_journal_issue                   5
_journal_name_full               'Organic letters'
_journal_page_first              1016
_journal_page_last               1019
_journal_paper_doi               10.1021/ol100024r
_journal_volume                  12
_journal_year                    2010
_chemical_formula_sum            'C29 H40 O10'
_chemical_formula_weight         548.61
_chemical_name_systematic
; 
 ? 
;
_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            4
_cell_length_a                   10.4314(7)
_cell_length_b                   15.4544(12)
_cell_length_c                   17.8219(16)
_cell_measurement_reflns_used    665
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      77.6953
_cell_measurement_theta_min      3.7833
_cell_volume                     2873.1(4)
_computing_cell_refinement
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.41 (release 06-05-2009 CrysAlis171 .NET) 
(compiled May  6 2009,17:20:42) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_computing_data_collection
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.41 (release 06-05-2009 CrysAlis171 .NET) 
(compiled May  6 2009,17:20:42) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_computing_data_reduction
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.41 (release 06-05-2009 CrysAlis171 .NET) 
(compiled May  6 2009,17:20:42) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Oxford Diffraction Gemini A'
_diffrn_measurement_method       CCD
_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  0.0556
_diffrn_reflns_av_sigmaI/netI    0.2338
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            6513
_diffrn_reflns_theta_full        67.97
_diffrn_reflns_theta_max         67.97
_diffrn_reflns_theta_min         3.79
_exptl_absorpt_coefficient_mu    0.790
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.23796
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.41 (release 06-05-2009 CrysAlis171 .NET) 
(compiled May  6 2009,17:20:42) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_density_diffrn    1.268
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1176
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.293
_refine_diff_density_min         -0.189
_refine_diff_density_rms         0.044
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.2(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.744
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     360
_refine_ls_number_reflns         4745
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.746
_refine_ls_R_factor_all          0.2458
_refine_ls_R_factor_gt           0.0754
_refine_ls_shift/su_max          1.394
_refine_ls_shift/su_mean         0.027
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1662
_refine_ls_wR_factor_ref         0.2451
_reflns_number_gt                1212
_reflns_number_total             4745
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol100024r_si_001.cif
_cod_data_source_block           ic13886
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1502838