Total Synthesis of Prostratin, a Bioactive Tigliane Diterpenoid: Access to Multi-Stereocenter Cyclohexanes from a Phenol.
Tong, Guanghu; Ding, Zhengwei; Liu, Zhi; Ding, You-Song; Xu, Liang; Zhang, Hailong; Li, Pengfei; The Journal of organic chemistry 85 (2020) 4813–4837; doi:10.1021/acs.joc.0c00022

data_4038092
_publ_section_title
;
 Total Synthesis of Prostratin, a Bioactive Tigliane Diterpenoid: Access
 to Multi-Stereocenter Cyclohexanes from a Phenol.
;
_journal_issue                   7
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              4813
_journal_page_last               4837
_journal_paper_doi               10.1021/acs.joc.0c00022
_journal_volume                  85
_journal_year                    2020
_chemical_formula_moiety         'C7 H8 O3'
_chemical_formula_sum            'C7 H8 O3'
_chemical_formula_weight         140.13
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2018-04-13
_audit_creation_method
;
Olex2 1.2
(compiled 2018.04.03 svn.r3497 for OlexSys, GUI svn.r5486)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   8.5906(10)
_cell_length_b                   7.0884(8)
_cell_length_c                   20.553(2)
_cell_measurement_reflns_used    1503
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.72
_cell_measurement_theta_min      3.09
_cell_volume                     1251.5(2)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.15
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0309
_diffrn_reflns_av_unetI/netI     0.0262
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            5332
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.998
_diffrn_reflns_theta_min         1.982
_exptl_absorpt_coefficient_mu    0.117
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.487
_exptl_crystal_description       needle
_exptl_crystal_F_000             592
_exptl_crystal_size_max          0.231
_exptl_crystal_size_mid          0.166
_exptl_crystal_size_min          0.044
_refine_diff_density_max         0.456
_refine_diff_density_min         -0.206
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     92
_refine_ls_number_reflns         1237
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0546
_refine_ls_R_factor_gt           0.0425
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0467P)^2^+0.7032P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0991
_refine_ls_wR_factor_ref         0.1043
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1022
_reflns_number_total             1237
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo0c00022_si_002.cif
_cod_data_source_block           2
_cod_depositor_comments
;
Adding full bibliography for 4038084--4038097.cif.

2020-11-05
Z value and formula fixed to values more according to usual
chemical conventions.                 miguel
;
_cod_original_cell_volume        1251.5(3)
_cod_original_formula_moiety     '8(C7 H8 O3)'
_cod_original_formula_sum        'C56 H64 O24'
_cod_original_formula_units_Z    1
_cod_original_formula_weight     1121.07
_cod_database_code               4038092
_shelx_shelxl_version_number     2014/7
_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 O(H) groups
2.a Ternary CH refined with riding coordinates:
 C5(H5), C1(H1), C6(H6)
2.b Secondary CH2 refined with riding coordinates:
 C4(H4A,H4B)
2.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3A)
2.d Idealised tetrahedral OH refined as rotating group:
 O3(H3)
;
_shelx_res_checksum              17
_shelx_hkl_checksum              31781
_olex2_submission_special_instructions 'No special instructions were received'