Synthesis, structure–activity relationships and stereochemical investigations of new tricyclic pyridazinone derivatives as potential STAT3 inhibitors
Masciocchi, Daniela; Gelain, Arianna; Porta, Federica; Meneghetti, Fiorella; Pedretti, Alessandro; Celentano, Giuseppe; Barlocco, Daniela; Legnani, Laura; Toma, Lucio; Kwon, Byoung-Mog; Asai, Akira; Villa, Stefania; MedChemComm 4 (2013) 1181–; doi:10.1039/c3md00095h

data_7112506
_publ_section_title
;
 Synthesis, structure--activity relationships and stereochemical
 investigations of new tricyclic pyridazinone derivatives as potential
 STAT3 inhibitors
;
_journal_issue                   8
_journal_name_full               MedChemComm
_journal_page_first              1181
_journal_paper_doi               10.1039/c3md00095h
_journal_volume                  4
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_sum            'C14 H15 Cl N2 O'
_chemical_formula_weight         262.73
_space_group_IT_number           19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2012-10-12T14:13:11-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.929(4)
_cell_length_b                   12.530(4)
_cell_length_c                   12.977(8)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      10
_cell_measurement_theta_min      9
_cell_volume                     1289.3(11)
_computing_cell_refinement       'SHELXL-97 (Sheldrick, 2008)'
_computing_data_collection       'CAD-4 Software (Enraf Nonius, 1989)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR-92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_unetI/netI     0.0513
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -1
_diffrn_reflns_number            1806
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         2.26
_exptl_absorpt_coefficient_mu    0.285
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.3057
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details
;
Walker, N. & Stuart, D (1983) Acta. Cryst. A39, 158-166
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             552
_exptl_crystal_size_max          0.9
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.142
_refine_diff_density_min         -0.244
_refine_diff_density_rms         0.04
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.04(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.949
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     224
_refine_ls_number_reflns         1806
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.949
_refine_ls_R_factor_all          0.0948
_refine_ls_R_factor_gt           0.041
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0524P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.088
_refine_ls_wR_factor_ref         0.1029
_reflns_number_gt                1010
_reflns_number_total             1806
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3md00095h.txt
_cod_data_source_block           dm5clr
_cod_database_code               7112506