New ent-kaurane diterpenoid acids from Nouelia insignis Franch and their anti-inflammatory activity
Wu, Zhi-li; Li, Jia-yu; Huang, Peng-li; Sun, Ze-shi; Li, Hui-liang; Zhang, Wei-dong; RSC Advances 12 (2022) 11155–11163; doi:10.1039/D2RA01684B

data_7244764
_publ_section_title
;
 New ent-kaurane diterpenoid acids from Nouelia insignis Franch and their
 anti-inflammatory activity
;
_journal_issue                   18
_journal_name_full               'RSC Advances'
_journal_page_first              11155
_journal_page_last               11163
_journal_paper_doi               10.1039/D2RA01684B
_journal_volume                  12
_journal_year                    2022
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H34 O7'
_chemical_formula_weight         386.47
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2021-12-07 deposited with the CCDC.	2022-04-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.4300(3)
_cell_length_b                   12.1373(5)
_cell_length_c                   21.6486(8)
_cell_measurement_reflns_used    9938
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      139.936
_cell_measurement_theta_min      7.283
_cell_volume                     1952.27(13)
_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-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0500
_diffrn_reflns_av_unetI/netI     0.0336
_diffrn_reflns_Laue_measured_fraction_full 0.991
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            15527
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         67.970
_diffrn_reflns_theta_min         4.176
_exptl_absorpt_coefficient_mu    0.809
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5105
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.315
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             840
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.140
_exptl_crystal_size_min          0.090
_refine_diff_density_max         0.387
_refine_diff_density_min         -0.236
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details
; 
 Flack x determined using 1397 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   0.04(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     256
_refine_ls_number_reflns         3520
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0404
_refine_ls_R_factor_gt           0.0389
_refine_ls_shift/su_max          0.038
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0564P)^2^+0.4277P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1043
_refine_ls_wR_factor_ref         0.1057
_reflns_Friedel_coverage         0.730
_reflns_Friedel_fraction_full    0.992
_reflns_Friedel_fraction_max     0.992
_reflns_number_gt                3407
_reflns_number_total             3520
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ra01684b2.cif
_cod_data_source_block           cu_d8v21936_0m
_cod_database_code               7244764
_shelx_estimated_absorpt_t_min   0.855
_shelx_estimated_absorpt_t_max   0.931
_shelxl_version_number           2013-4
_shelx_res_checksum              28550