Diversity Synthesis of Pyrimido[4,5-b][1,6]naphthyridine and Its Derivatives under Microwave Irradiation
Han, Zheng-Guo; Zhang, Ge; Jiang, Bo; Ma, Ning; Shi, Feng; Tu, Shu-Jiang; Journal of Combinatorial Chemistry 11 (2009) 809–; doi:10.1021/cc800196u

data_1503643
_publ_section_title
;
 Diversity Synthesis of Pyrimido[4,5-b][1,6]naphthyridine and Its
 Derivatives under Microwave Irradiation
;
_journal_issue                   5
_journal_name_full               'Journal of Combinatorial Chemistry'
_journal_page_first              809
_journal_paper_doi               10.1021/cc800196u
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C24 H28.42 Br2 N5 O4.71'
_chemical_formula_weight         622.09
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           201
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  '-P 2ab 2bc 3'
_symmetry_space_group_name_H-M   'P n -3 :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            24
_cell_length_a                   25.657(2)
_cell_length_b                   25.657(2)
_cell_length_c                   25.657(2)
_cell_measurement_reflns_used    4315
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25.313
_cell_measurement_theta_min      2.382
_cell_volume                     16890(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.3460
_diffrn_reflns_av_sigmaI/netI    0.1922
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            68136
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.12
_exptl_absorpt_coefficient_mu    2.919
_exptl_absorpt_correction_T_max  0.7028
_exptl_absorpt_correction_T_min  0.5792
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.468
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             7562
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.414
_refine_diff_density_min         -0.297
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     340
_refine_ls_number_reflns         4934
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.2899
_refine_ls_R_factor_gt           0.0709
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0392P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1255
_refine_ls_wR_factor_ref         0.1538
_reflns_number_gt                1257
_reflns_number_total             4934
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cc800196u_si_002.cif
_cod_data_source_block           080427a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Cubic' changed to 'cubic' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        16890(3)
_cod_original_sg_symbol_H-M      Pn-3
_cod_database_code               1503643