(M)- and (P)-Bicelaphanol A, Dimeric Trinorditerpenes with Promising Neuroprotective Activity fromCelastrus orbiculatus
Wang, Luo-Yi; Wu, Jian; Yang, Zhuo; Wang, Xu-Jie; Fu, Yan; Liu, Shuang-Zhu; Wang, Hong-Min; Zhu, Wei-Liang; Zhang, Hai-Yan; Zhao, Wei-Min; Journal of Natural Products 76 (2013) 745–; doi:10.1021/np3008182

data_1511846
_publ_section_title
;
 (M)- and (P)-Bicelaphanol A, Dimeric Trinorditerpenes with Promising
 Neuroprotective Activity fromCelastrus orbiculatus
;
_journal_issue                   4
_journal_name_full               'Journal of Natural Products'
_journal_page_first              745
_journal_paper_doi               10.1021/np3008182
_journal_volume                  76
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_sum            'C35 H42 O8'
_chemical_formula_weight         590.69
_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                 96.1740(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.4324(2)
_cell_length_b                   16.6283(3)
_cell_length_c                   10.8816(2)
_cell_measurement_reflns_used    9935
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      66.09
_cell_measurement_theta_min      4.09
_cell_volume                     1516.93(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_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 0.975
_diffrn_measured_fraction_theta_max 0.975
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0298
_diffrn_reflns_av_sigmaI/netI    0.0254
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            19415
_diffrn_reflns_theta_full        66.50
_diffrn_reflns_theta_max         66.50
_diffrn_reflns_theta_min         4.09
_exptl_absorpt_coefficient_mu    0.739
_exptl_absorpt_correction_T_max  0.9782
_exptl_absorpt_correction_T_min  0.9036
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.293
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             632
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.254
_refine_diff_density_min         -0.147
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     400
_refine_ls_number_reflns         5100
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0282
_refine_ls_R_factor_gt           0.0279
_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^)+(0.0793P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0864
_refine_ls_wR_factor_ref         0.0870
_reflns_number_gt                5037
_reflns_number_total             5100
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            np3008182_si_002.cif
_cod_data_source_block           cu_dm12235_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               1511846