Total Synthesis of Pactamycin and Pactamycate: A Detailed Account
Stephen Hanessian; Ramkrishna Reddy Vakiti; Stéphane Dorich; Shyamapada Banerjee; Benoît Deschênes-Simard; Journal of Organic Chemistry 77 (2012) 9458–9472; doi:10.1021/jo301638z

data_4027638
_publ_section_title
;
 Total Synthesis of Pactamycin and Pactamycate: A Detailed Account
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9458
_journal_page_last               9472
_journal_paper_doi               10.1021/jo301638z
_journal_volume                  77
_journal_year                    2012
_chemical_absolute_configuration rmad
_chemical_compound_source        'Synthesized by the authors. See text'
_chemical_formula_sum            'C31 H33 N3 O9'
_chemical_formula_weight         591.60
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 111.443(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   29.813(4)
_cell_length_b                   9.5757(16)
_cell_length_c                   11.6715(18)
_cell_measurement_reflns_used    5607
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      50.93
_cell_measurement_theta_min      3.19
_cell_volume                     3101.3(8)
_computing_cell_refinement       'SMART (Bruker, 2003)'
_computing_data_collection       'SMART (Bruker, 2003)'
_computing_data_reduction        'SAINT (Bruker, 2004)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  'UdMX (local program)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 5.5
_diffrn_measured_fraction_theta_full 0.957
_diffrn_measured_fraction_theta_max 0.958
_diffrn_measurement_device_type  'Bruker Microstar'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  'Helios optics'
_diffrn_radiation_source         'Micro source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.053
_diffrn_reflns_av_sigmaI/netI    0.0513
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            13316
_diffrn_reflns_theta_full        55.78
_diffrn_reflns_theta_max         55.78
_diffrn_reflns_theta_min         3.19
_diffrn_standards_decay_%        0.00
_diffrn_standards_number         5
_exptl_absorpt_coefficient_mu    0.782
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6600
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick,1996)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.267
_exptl_crystal_description       plate
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.734
_refine_diff_density_min         -0.310
_refine_diff_density_rms         0.095
_refine_ls_abs_structure_details 'Flack H D (1983), XXXX Friedel Pairs'
_refine_ls_abs_structure_Flack   -0.7(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     519
_refine_ls_number_reflns         3524
_refine_ls_number_restraints     518
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.1183
_refine_ls_R_factor_gt           0.0951
_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^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2455
_refine_ls_wR_factor_ref         0.2649
_reflns_number_gt                2588
_reflns_number_total             3524
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo301638z_si_005.cif
_cod_data_source_block           platon
_cod_database_code               4027638