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_1503645
_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            'C28 H28 N4 O1.5'
_chemical_formula_weight         444.54
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                95.1590(10)
_cell_angle_beta                 103.578(2)
_cell_angle_gamma                91.9540(10)
_cell_formula_units_Z            4
_cell_length_a                   9.8714(13)
_cell_length_b                   16.11(2)
_cell_length_c                   16.131(2)
_cell_measurement_reflns_used    1211
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      19.246
_cell_measurement_theta_min      2.529
_cell_volume                     2479(3)
_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 0.980
_diffrn_measured_fraction_theta_max 0.980
_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  0.0517
_diffrn_reflns_av_sigmaI/netI    0.1515
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            12994
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.73
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  0.9933
_exptl_absorpt_correction_T_min  0.9829
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.191
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.676
_refine_diff_density_min         -0.194
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     631
_refine_ls_number_reflns         8567
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.2400
_refine_ls_R_factor_gt           0.0837
_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^)+(0.0529P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1784
_refine_ls_wR_factor_ref         0.2166
_reflns_number_gt                2482
_reflns_number_total             8567
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cc800196u_si_004.cif
_cod_data_source_block           080708d
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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        2480(4)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1503645