Total Synthesis of (-)-Nodulisporic Acids D, C, and B: Evolution of a Unified Synthetic Strategy.
Zou, Yike; Li, Xiangqin; Yang, Yun; Berritt, Simon; Melvin, Jason; Gonzales, Stephen; Spafford, Matthew; Smith, 3rd, Amos B; Journal of the American Chemical Society 140 (2018) 9502–9511; doi:10.1021/jacs.8b04053

data_4132451
_publ_section_title
;
 Total Synthesis of (-)-Nodulisporic Acids D, C, and B: Evolution of a
 Unified Synthetic Strategy.
;
_journal_issue                   30
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9502
_journal_page_last               9511
_journal_paper_doi               10.1021/jacs.8b04053
_journal_volume                  140
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C26 H36 Cl N O5'
_chemical_formula_sum            'C26 H36 Cl N O5'
_chemical_formula_weight         478.01
_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   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2017-01-10
_audit_creation_method
;
Olex2 1.2
(compiled 2016.09.09 svn.r3337 for OlexSys, GUI svn.r5227)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.3356(3)
_cell_length_b                   10.3523(3)
_cell_length_c                   27.2440(9)
_cell_measurement_reflns_used    9340
_cell_measurement_temperature    100
_cell_measurement_theta_max      27.51
_cell_measurement_theta_min      2.65
_cell_volume                     2632.99(14)
_computing_data_collection       'Bruker APEX2 v2014.11-0'
_computing_data_reduction        'Bruker SAINT v8.34A'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'CCD area detector'
_diffrn_measurement_device_type  'Bruker APEXII'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0248
_diffrn_reflns_av_unetI/netI     0.0092
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            113235
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.530
_diffrn_reflns_theta_min         2.104
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.180
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.7186
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v2014/4'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.206
_exptl_crystal_description       prism
_exptl_crystal_F_000             1024
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.515
_refine_diff_density_min         -0.551
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details
;
 Flack x determined using 2533 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.006(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         6057
_refine_ls_number_restraints     54
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.0315
_refine_ls_R_factor_gt           0.0307
_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^)+(0.0385P)^2^+1.0229P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0772
_refine_ls_wR_factor_ref         0.0779
_reflns_Friedel_coverage         0.763
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                5919
_reflns_number_total             6057
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b04053_si_005.cif
_cod_data_source_block           1446
_cod_database_code               4132451