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_7244763
_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 rmad
_chemical_formula_moiety         'C20 H28 O4'
_chemical_formula_sum            'C20 H28 O4'
_chemical_formula_weight         332.42
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2022-02-28
_audit_creation_method
;
Olex2 1.5
(compiled 2021.12.09 svn.r5202d8cf for OlexSys, GUI svn.r6439)
;
_audit_update_record
;
2022-03-04 deposited with the CCDC.	2022-04-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 98.573(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   6.4502(3)
_cell_length_b                   14.2302(6)
_cell_length_c                   9.9729(4)
_cell_measurement_reflns_used    9946
_cell_measurement_temperature    293.00
_cell_measurement_theta_max      54.977
_cell_measurement_theta_min      6.038
_cell_volume                     905.16(7)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293.00
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34139
_diffrn_reflns_av_R_equivalents  0.0564
_diffrn_reflns_av_unetI/netI     0.0541
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            11155
_diffrn_reflns_point_group_measured_fraction_full 0.986
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         54.989
_diffrn_reflns_theta_min         6.036
_diffrn_source_current           2.86
_diffrn_source_power             0.1995708
_diffrn_source_voltage           69.78
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.427
_exptl_absorpt_correction_T_max  0.7508
_exptl_absorpt_correction_T_min  0.5340
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1631 before and 0.0915 after correction.
The Ratio of minimum to maximum transmission is 0.7112.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.220
_exptl_crystal_description       block
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.272
_refine_diff_density_min         -0.235
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details
;
 Flack x determined using 1535 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.01(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.080
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     221
_refine_ls_number_reflns         3409
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.080
_refine_ls_R_factor_all          0.0413
_refine_ls_R_factor_gt           0.0407
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0662P)^2^+0.0654P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1083
_refine_ls_wR_factor_ref         0.1090
_reflns_Friedel_coverage         0.903
_reflns_Friedel_fraction_full    0.978
_reflns_Friedel_fraction_max     0.978
_reflns_number_gt                3334
_reflns_number_total             3409
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ra01684b2.cif
_cod_data_source_block           mj22102_0m
_cod_database_code               7244763
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.979
_shelx_estimated_absorpt_t_min   0.939
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H) groups
2.a Ternary CH refined with riding coordinates:
 C2(H2A), C5(H5), C9(H9), C13(H13)
2.b Secondary CH2 refined with riding coordinates:
 C1(H1A,H1B), C3(H3A,H3B), C6(H6A,H6B), C7(H7A,H7B), C11(H11A,H11B), C12(H12A,
 H12B), C14(H14A,H14B)
2.c X=CH2 refined with riding coordinates:
 C17(H17A,H17B)
2.d Idealised Me refined as rotating group:
 C18(H18A,H18B,H18C), C20(H20A,H20B,H20C)
2.e Idealised tetrahedral OH refined as rotating group:
 O1(H1), O2(H2)
;
_shelx_res_checksum              59385
_olex2_submission_special_instructions 'No special instructions were received'