Total Synthesis of the GRP78-Downregulatory Macrolide (+)-Prunustatin A, the Immunosuppressant (+)-SW-163A, and a JBIR-04 Diastereoisomer That Confirms JBIR-04 Has Nonidentical Stereochemistry to (+)-Prunustatin A.
Manaviazar, Soraya; Nockemann, Peter; Hale, Karl J.; Organic letters 18 (2016) 2902–2905; doi:10.1021/acs.orglett.6b01235

data_1543361
_publ_section_title
;
 Total Synthesis of the GRP78-Downregulatory Macrolide (+)-Prunustatin A,
 the Immunosuppressant (+)-SW-163A, and a JBIR-04 Diastereoisomer That
 Confirms JBIR-04 Has Nonidentical Stereochemistry to (+)-Prunustatin A.
;
_journal_issue                   12
_journal_name_full               'Organic letters'
_journal_page_first              2902
_journal_page_last               2905
_journal_paper_doi               10.1021/acs.orglett.6b01235
_journal_volume                  18
_journal_year                    2016
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C13 H16 O3'
_chemical_formula_sum            'C13 H16 O3'
_chemical_formula_weight         220.26
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2016-04-06
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.16 svn.r3265 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 97.945(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.2460(3)
_cell_length_b                   6.3133(3)
_cell_length_c                   11.1291(4)
_cell_measurement_reflns_used    1503
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      72.530
_cell_measurement_theta_min      0.864
_cell_volume                     573.81(4)
_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    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.957
_diffrn_measured_fraction_theta_max 0.957
_diffrn_measurement_device_type  'Rigaku Supernova'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0222
_diffrn_reflns_av_unetI/netI     0.0319
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            2112
_diffrn_reflns_theta_full        72.53
_diffrn_reflns_theta_max         72.53
_diffrn_reflns_theta_min         5.42
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.729
_exptl_absorpt_correction_T_max  0.864
_exptl_absorpt_correction_T_min  0.864
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v2008/1 (Bruker, 2007)'
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.275
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             236
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.172
_refine_diff_density_min         -0.255
_refine_diff_density_rms         0.043
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.1(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.099
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         1540
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.098
_refine_ls_R_factor_all          0.0372
_refine_ls_R_factor_gt           0.0364
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0628P)^2^+0.0600P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1026
_refine_ls_wR_factor_ref         0.1034
_reflns_number_gt                1503
_reflns_number_total             1540
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol6b01235_si_005.cif
_cod_data_source_block           exp_71
_cod_depositor_comments
'Adding full bibliography for 1543360--1543363.cif.'
_cod_original_cell_volume        573.82(4)
_cod_database_code               1543361
_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
2.a Ternary CH refined with riding coordinates:
 C5(H5), C8(H8)
2.b Secondary CH2 refined with riding coordinates:
 C14(H14A,H14B)
2.c Aromatic/amide H refined with riding coordinates:
 C9(H9), C10(H10), C11(H11), C12(H12), C13(H13)
2.d Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C15(H15A,H15B,H15C)
2.e Idealised tetrahedral OH refined as rotating group:
 O2(H2)
;
_olex2_submission_special_instructions 'No special instructions were received'