Unprecedented sesterterpenoids, orientanoids A-C: discovery, bioinspired total synthesis and antitumor immunity.
Zheng, Cheng-Yu; Zhao, Jin-Xin; Yuan, Chang-Hao; Peng, Xia; Geng, Meiyu; Ai, Jing; Fan, Yao-Yue; Yue, Jian-Min; Chemical science 14 (2023) 13410–13418; doi:10.1039/d3sc04238c

data_1570257
_publ_section_title
;
 Unprecedented sesterterpenoids, orientanoids A-C: discovery, bioinspired
 total synthesis and antitumor immunity.
;
_journal_issue                   46
_journal_name_full               'Chemical science'
_journal_page_first              13410
_journal_page_last               13418
_journal_paper_doi               10.1039/d3sc04238c
_journal_volume                  14
_journal_year                    2023
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C15 H20 O4, 3(H2 O)'
_chemical_formula_sum            'C15 H26 O7'
_chemical_formula_weight         318.36
_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
_atom_sites_solution_primary     dual
_audit_creation_date             2020-08-06
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2020-08-07 deposited with the CCDC.	2023-11-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.7959(2)
_cell_length_b                   10.8224(3)
_cell_length_c                   22.5827(6)
_cell_measurement_reflns_used    7367
_cell_measurement_temperature    170
_cell_measurement_theta_max      74.675
_cell_measurement_theta_min      3.915
_cell_volume                     1660.91(8)
_computing_cell_refinement       'SAINT V8.40A (?, 2016)'
_computing_data_reduction        'SAINT V8.40A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      170.0
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'D8 VENTURE'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0586
_diffrn_reflns_av_unetI/netI     0.0424
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            14858
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         74.624
_diffrn_reflns_theta_min         3.915
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.841
_exptl_absorpt_correction_T_max  0.7538
_exptl_absorpt_correction_T_min  0.5371
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1724 before and 0.0815 after correction. The Ratio of minimum to maximum transmission is 0.7125. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.273
_exptl_crystal_description       block
_exptl_crystal_F_000             688
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.250
_refine_diff_density_min         -0.246
_refine_diff_density_rms         0.052
_refine_ls_abs_structure_details
;
 Flack x determined using 1159 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.08(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     221
_refine_ls_number_reflns         3388
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0520
_refine_ls_R_factor_gt           0.0456
_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^)+(0.0715P)^2^+0.1682P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1139
_refine_ls_wR_factor_ref         0.1200
_reflns_Friedel_coverage         0.708
_reflns_Friedel_fraction_full    0.996
_reflns_Friedel_fraction_max     0.981
_reflns_number_gt                3037
_reflns_number_total             3388
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3sc04238c2.cif
_cod_data_source_block           cu_22020479_0m
_cod_depositor_comments
'Adding full bibliography for 1570253--1570262.cif.'
_cod_database_code               1570257
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.959
_shelx_estimated_absorpt_t_min   0.884
_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, All O(H,H) groups
2. Restrained distances
 O7-H7B = O7-H7A
 0.87 with sigma of 0.02
 O1-H1B
 0.87 with sigma of 0.02
3.a Free rotating group:
 O7(H7A), O5(H5A,H5B)
3.b Ternary CH refined with riding coordinates:
 C1(H1), C8(H8), C3(H3), C11(H11)
3.c Secondary CH2 refined with riding coordinates:
 C6(H6A,H6B), C9(H9A,H9B), C2(H2A,H2B)
3.d Idealised Me refined as rotating group:
 C14(H14A,H14B,H14C), C13(H13A,H13B,H13C), C15(H15A,H15B,H15C)
3.e Idealised tetrahedral OH refined as rotating group:
 O6(H6)
;
_olex2_submission_special_instructions 'No special instructions were received'