Total Synthesis of Antibacterial Polyketide Natural Product Thailandamide Lactone
Sharma, Himangshu; Mondal, Joyanta Mr.; Ghosh, Ananyo K. Mr.; Pal, Ritesh Ranjan Dr.; Goswami, Rajib Kumar; Chemical Science  (2022) –; doi:10.1039/D2SC04727F

data_1567830
_publ_section_title
;
 Total Synthesis of Antibacterial Polyketide Natural Product Thailandamide
 Lactone
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D2SC04727F
_journal_year                    2022
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C28 H29 O4'
_chemical_formula_sum            'C28 H30 O4'
_chemical_formula_weight         430.52
_space_group_crystal_system      tetragonal
_space_group_IT_number           92
_space_group_name_Hall           'P 4abw 2nw'
_space_group_name_H-M_alt        'P 41 21 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2022-05-27
_audit_creation_method
;
Olex2 1.3-ac4
(compiled 2019.04.23 svn.r3594 for Rigaku Oxford Diffraction, GUI svn.r5739)
;
_audit_update_record
;
2022-07-05 deposited with the CCDC.	2022-10-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   9.6794(11)
_cell_length_b                   9.6794(11)
_cell_length_c                   49.548(8)
_cell_measurement_reflns_used    6410
_cell_measurement_temperature    105.33
_cell_measurement_theta_max      24.25
_cell_measurement_theta_min      2.26
_cell_volume                     4642.2(11)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      105.33
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-III PHOTON II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1132
_diffrn_reflns_av_unetI/netI     0.0519
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       59
_diffrn_reflns_limit_l_min       -59
_diffrn_reflns_number            44343
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.086
_diffrn_reflns_theta_max         25.086
_diffrn_reflns_theta_min         2.259
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.5859
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1289 before and 0.0798 after correction. The Ratio of minimum to maximum transmission is 0.7862. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.232
_exptl_crystal_description       plate
_exptl_crystal_F_000             1840
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.345
_refine_diff_density_min         -0.260
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details
;
 Flack x determined using 1167 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.5(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.155
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     292
_refine_ls_number_reflns         4139
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.155
_refine_ls_R_factor_all          0.0731
_refine_ls_R_factor_gt           0.0512
_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^)+(0.0382P)^2^+3.2109P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1149
_refine_ls_wR_factor_ref         0.1280
_reflns_Friedel_coverage         0.637
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                3406
_reflns_number_total             4139
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2sc04727f2.cif
_cod_data_source_block           mo_ocrg170321_0m_a
_cod_original_cell_volume        4642.2(13)
_cod_database_code               1567830
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.993
_shelx_estimated_absorpt_t_min   0.975
_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
2.a Ternary CH refined with riding coordinates:
 C4(H4), C2(H2)
2.b Secondary CH2 refined with riding coordinates:
 C9(H9A,H9B)
2.c Aromatic/amide H refined with riding coordinates:
 C24(H24), C8(H8), C16(H16), C22(H22), C28(H28), C13(H13), C12(H12), C26(H26),
 C14(H14), C25(H25), C27(H27), C15(H15), C21(H21), C20(H20), C18(H18), C19(H19)
2.d Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C3(H3A,H3B,H3C), C5(H5A,H5B,H5C)
;
_olex2_submission_special_instructions 'No special instructions were received'