Total Synthesis of Proposed Auranthine
Umesh A. Kshirsagar; Vedavati G. Puranik; Narshinha P. Argade; Journal of Organic Chemistry 75 (2010) 2702–2705; doi:10.1021/jo100400z

data_4025369
_publ_section_title
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 Total Synthesis of Proposed Auranthine
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              2702
_journal_page_last               2705
_journal_paper_doi               10.1021/jo100400z
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C19 H14 N4 O2. H2O'
_chemical_formula_sum            'C19 H16 N4 O3'
_chemical_formula_weight         348.36
_chemical_melting_point          461.6(5)
_chemical_name_common
'tetrahydroquinazolinopyridobenzodiazepindione '
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 93.5550(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.5886(8)
_cell_length_b                   9.3268(6)
_cell_length_c                   14.0793(10)
_cell_measurement_reflns_used    3696
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.743
_cell_measurement_theta_min      2.62
_cell_volume                     1649.89(19)
_computing_cell_refinement       'BRUKER SAINT'
_computing_data_collection       'BRUKER SMART'
_computing_data_reduction        'BRUKER SAINT'
_computing_molecular_graphics    'SHELXTL, PyMOL and PLATON'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'Bruker Smart APEX'
_diffrn_measurement_device_type  'CCD Area Detector'
_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  0.0191
_diffrn_reflns_av_sigmaI/netI    0.0199
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8047
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.62
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.9878
_exptl_absorpt_correction_T_min  0.9747
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.402
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rectangular
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.153
_refine_diff_density_min         -0.145
_refine_diff_density_rms         0.031
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     243
_refine_ls_number_reflns         2892
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0436
_refine_ls_R_factor_gt           0.0389
_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^)+(0.0450P)^2^+0.4353P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0957
_refine_ls_wR_factor_ref         0.0993
_reflns_number_gt                2587
_reflns_number_total             2892
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo100400z_si_002.cif
_cod_data_source_block           C19H16N4O3compound1
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value '188-189 degree centigrade' was
changed to '461.6(5)' - it was converted from degrees Celsius(C) to
Kelvins(K), the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
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_cod_database_code               4025369