Process Development for ABT-472, a Benzimidazole PARP Inhibitor
Barkalow, Jufang H.; Breting, Jeffrey; Gaede, Bruce J.; Haight, Anthony R.; Henry, Rodger; Kotecki, Brian; Mei, Jianzhang; Pearl, Kurt B.; Tedrow, Jason S.; Viswanath, Shekhar K.; Organic Process Research & Development 11 (2007) 693–; doi:10.1021/op7000194

data_1505672
_publ_section_title
;
 Process Development for ABT-472, a Benzimidazole PARP Inhibitor
;
_journal_issue                   4
_journal_name_full               'Organic Process Research &amp; Development'
_journal_page_first              693
_journal_paper_doi               10.1021/op7000194
_journal_volume                  11
_journal_year                    2007
_chemical_formula_sum            'C16 H29 Cl N4 O4'
_chemical_formula_weight         376.88
_space_group_IT_number           88
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4ad'
_symmetry_space_group_name_H-M   'I 41/a :2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   30.683(5)
_cell_length_b                   30.683(5)
_cell_length_c                   8.352(2)
_cell_measurement_reflns_used    997
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      28.0025
_cell_measurement_theta_min      3.149
_cell_volume                     7863(3)
_computing_cell_refinement       'Bruker saintplus (Bruker 1999)'
_computing_data_collection       'Bruker SMART (Bruker 2001)'
_computing_data_reduction        'Bruker saintplus (Bruker 1999)'
_computing_molecular_graphics    'ORTEP (Johnson 1976), Accelrys (2004)'
_computing_structure_refinement  'SHELXL (Sheldrick, 2000)'
_computing_structure_solution    'SHELXL (Sheldrick, 2000)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'Bruker APEX CCD'
_diffrn_measurement_method       'omega scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1398
_diffrn_reflns_av_sigmaI/netI    0.0703
_diffrn_reflns_limit_h_max       36
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -40
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            25077
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         1.33
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.221
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.273
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             3232
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.606
_refine_diff_density_min         -0.291
_refine_diff_density_rms         0.086
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     243
_refine_ls_number_reflns         4765
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0658
_refine_ls_R_factor_gt           0.0563
_refine_ls_shift/su_max          0.862
_refine_ls_shift/su_mean         0.033
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1520
_refine_ls_wR_factor_ref         0.1617
_reflns_number_gt                3859
_reflns_number_total             4765
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            op7000194-file006.cif
_cod_data_source_block           x812z
_cod_original_sg_symbol_H-M      I41/a
_cod_database_code               1505672