Insights into the structural diversity of cembranoids from Sarcophyton glaucum and their bioactivity
Lai, Kuei-Hung; Chung, Hsiao-Ling; Chen, You-Ying; Zheng, Li-Guo; Su, Jui-Hsin; El-Shazly, Mohamed; RSC Advances 15 (2025) 4702–4707; doi:10.1039/D5RA00208G

data_7249948
_publ_section_title
;
 Insights into the structural diversity of cembranoids from Sarcophyton
 glaucum and their bioactivity
;
_journal_issue                   6
_journal_name_full               'RSC Advances'
_journal_page_first              4702
_journal_page_last               4707
_journal_paper_doi               10.1039/D5RA00208G
_journal_volume                  15
_journal_year                    2025
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H30 O3'
_chemical_formula_weight         318.44
_chemical_name_systematic
(4Z,8S,9R,12E,14E)-9-Hydroxy-1-isopropyl-8,12-dimethyl_oxabicyclo[9.3.2]-hexadeca-4,12,14-trien-18-one
_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-2019/1
_audit_update_record
;
2024-11-11 deposited with the CCDC.	2025-01-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.6524(2)
_cell_length_b                   13.8446(3)
_cell_length_c                   17.0676(4)
_cell_measurement_reflns_used    8808
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      74.40
_cell_measurement_theta_min      4.11
_cell_volume                     1808.22(7)
_computing_cell_refinement       'SAINT V8.40B (Bruker AXS LLC, 2019)'
_computing_data_collection       'Bruker Instrument Service vV6.2.16'
_computing_data_reduction        'SAINT V8.40B (Bruker AXS LLC, 2019)'
_computing_molecular_graphics    'shelXle (C.B. Huebschle, rev 1503)'
_computing_publication_material  'Bruker APEX5 v2023.9-4'
_computing_structure_refinement  'SHELXL-2019/1 (Sheldrick, 2019)'
_computing_structure_solution    'XT, VERSION 2018/2'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type
'Bruker D8 VENTURE (PHOTON III C14 COMS-10cmx14cm)'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0327
_diffrn_reflns_av_unetI/netI     0.0232
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            14037
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         74.422
_diffrn_reflns_theta_min         4.111
_exptl_absorpt_coefficient_mu    0.604
_exptl_absorpt_correction_T_max  0.9819
_exptl_absorpt_correction_T_min  0.8779
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
Krause, L., Herbst-Irmer, R., Sheldrick, G. M., Stalke, D. (2015). 
"Comparison of silver and molybdenum microfocus X-ray sources for 
single-crystal structure determination" 
J. Appl. Cryst. 48, 3-10. 
doi:10.1107/S1600576714022985 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_description       block
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.332
_exptl_crystal_size_mid          0.118
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.149
_refine_diff_density_min         -0.141
_refine_diff_density_rms         0.029
_refine_ls_abs_structure_details
; 
 Flack x determined using 1486 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   -0.07(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     213
_refine_ls_number_reflns         3676
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0315
_refine_ls_R_factor_gt           0.0296
_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^)+(0.0459P)^2^+0.1593P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0777
_refine_ls_wR_factor_ref         0.0790
_reflns_Friedel_coverage         0.734
_reflns_Friedel_fraction_full    0.998
_reflns_Friedel_fraction_max     0.990
_reflns_number_gt                3570
_reflns_number_total             3676
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5ra00208g2.cif
_cod_data_source_block           ic22883
_cod_database_code               7249948
_shelx_shelxl_version_number     2019/1
_shelx_estimated_absorpt_t_min   0.825
_shelx_estimated_absorpt_t_max   0.942
_shelx_res_checksum              86477
_shelx_hkl_checksum              2724