Structurally Diverse Diterpenoids from the Roots of <i>Salvia deserta</i> Based on Nine Different Skeletal Types.
Kadir, Abdukriem; Zheng, Guijuan; Zheng, Xiaofeng; Jin, Pengfei; Maiwulanjiang, Maitinuer; Gao, Biao; Aisa, Haji Akber; Yao, Guangmin; Journal of natural products 84 (2021) 1442–1452; doi:10.1021/acs.jnatprod.0c01180

data_1562541
_publ_section_title
;
 Structurally Diverse Diterpenoids from the Roots of <i>Salvia deserta</i>
 Based on Nine Different Skeletal Types.
;
_journal_issue                   5
_journal_name_full               'Journal of natural products'
_journal_page_first              1442
_journal_page_last               1452
_journal_paper_doi               10.1021/acs.jnatprod.0c01180
_journal_volume                  84
_journal_year                    2021
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H28 O4'
_chemical_formula_weight         332.42
_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   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.1197(2)
_cell_length_b                   13.3423(2)
_cell_length_c                   14.0083(2)
_cell_measurement_reflns_used    8289
_cell_measurement_temperature    299(2)
_cell_measurement_theta_max      68.72
_cell_measurement_theta_min      6.33
_cell_volume                     1891.40(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-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      299(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_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  0.0221
_diffrn_reflns_av_unetI/netI     0.0220
_diffrn_reflns_Laue_measured_fraction_full 0.986
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            10440
_diffrn_reflns_point_group_measured_fraction_full 0.980
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        65.994
_diffrn_reflns_theta_max         65.994
_diffrn_reflns_theta_min         5.486
_exptl_absorpt_coefficient_mu    0.641
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.167
_exptl_crystal_description       block
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.188
_refine_diff_density_rms         0.056
_refine_ls_abs_structure_details
; 
 Flack x determined using 1323 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.08(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     224
_refine_ls_number_reflns         3227
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0381
_refine_ls_R_factor_gt           0.0377
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0696P)^2^+0.1192P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1044
_refine_ls_wR_factor_ref         0.1050
_reflns_Friedel_coverage         0.732
_reflns_Friedel_fraction_full    0.971
_reflns_Friedel_fraction_max     0.971
_reflns_number_gt                3172
_reflns_number_total             3227
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            np0c01180_si_003.cif
_cod_data_source_block           cu_170622B_0m
_cod_depositor_comments
'Adding full bibliography for 1562538--1562543.cif.'
_cod_database_code               1562541
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.831
_shelx_estimated_absorpt_t_max   0.882
_shelx_res_checksum              95950
_shelx_hkl_checksum              71520