Directed C-H Bond Oxidation of (+)-Pleuromutilin.
Ma, Xiaoshen; Kucera, Roman; Goethe, Olivia F.; Murphy, Stephen K.; Herzon, Seth B.; The Journal of organic chemistry 83 (2018) 6843–6892; doi:10.1021/acs.joc.8b00462

data_4035430
_publ_section_title
;
 Directed C-H Bond Oxidation of (+)-Pleuromutilin.
;
_journal_issue                   13
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              6843
_journal_page_last               6892
_journal_paper_doi               10.1021/acs.joc.8b00462
_journal_volume                  83
_journal_year                    2018
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C20 H34 O4'
_chemical_formula_sum            'C20 H34 O4'
_chemical_formula_weight         338.47
_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     SHELXT
_atom_sites_solution_secondary   difmap
_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                   7.0525(3)
_cell_length_b                   12.6404(6)
_cell_length_c                   21.5366(9)
_cell_measurement_reflns_used    7536
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      27.4060
_cell_measurement_theta_min      3.0450
_cell_volume                     1919.91(15)
_computing_cell_refinement       'CrysAlisPro 1.171.39.28e (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.39.28e (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.39.28e (Rigaku OD, 2015)'
_computing_molecular_graphics
; 
Dolomanov, O.V.; Bourhis, L.J.; Gildea, R.J.; Howard, J.A.K.; Puschmann, H., 
OLEX2: A complete structure solution, refinement and analysis program 
(2009). J. Appl. Cryst., 42, 339-341. 
;
_computing_publication_material  'CIFTAB-2014/2 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT-2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 5.8
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Dectris Pilatus 3R'
_diffrn_measurement_method       \w
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0528
_diffrn_reflns_av_unetI/netI     0.0381
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            26999
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.482
_diffrn_reflns_theta_min         3.039
_diffrn_source                   'microfocus rotating anode'
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.48412
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro 1.171.39.28e (Rigaku Oxford Diffraction, 2015) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.171
_exptl_crystal_description       Block
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.280
_refine_diff_density_min         -0.161
_refine_diff_density_rms         0.037
_refine_ls_abs_structure_details
; 
 Flack x determined using 1564 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   -0.3(4)
_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     241
_refine_ls_number_reflns         4391
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0415
_refine_ls_R_factor_gt           0.0350
_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^)+(0.0447P)^2^+0.1832P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0808
_refine_ls_wR_factor_ref         0.0832
_reflns_Friedel_coverage         0.740
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                3939
_reflns_number_total             4391
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b00462_si_003.cif
_cod_data_source_block           007c-17022
_cod_original_cell_volume        1919.92(16)
_cod_database_code               4035430
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.984
_shelx_estimated_absorpt_t_max   0.992
_shelx_res_checksum              13204
_shelx_hkl_checksum              29735