<i>N</i>-Benzyltetrahydropyrido-anellated thiophene derivatives: new anticholinesterases
Pietsch, Markus; Nieger, Martin; Gütschow, Michael; Acta Crystallographica Section C 63 (2007) o147–o151; doi:10.1107/S0108270107001461

data_2015871
_publ_section_title
;
 <i>N</i>-Benzyltetrahydropyrido-anellated thiophene derivatives: new
 anticholinesterases
;
_journal_coeditor_code           SK3083
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o147
_journal_page_last               o151
_journal_paper_doi               10.1107/S0108270107001461
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C20 H23 N3 O2 S'
_chemical_formula_moiety         'C20 H23 N3 O2 S'
_chemical_formula_sum            'C20 H23 N3 O2 S'
_chemical_formula_weight         369.47
_chemical_name_systematic
7-Benzyl-2-diethylamino-5,6,7,8-tetrahydro-3-oxa-9-thia-1,7-diazafluoren-4-one
_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                 106.5030(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.0595(4)
_cell_length_b                   8.9892(3)
_cell_length_c                   18.0483(6)
_cell_measurement_reflns_used    3312
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      1
_cell_volume                     1875.93(11)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1998)'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2001)'
_computing_publication_material  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.949
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       'rotation in phi and omega, 1 deg.'
_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  0.0255
_diffrn_reflns_av_sigmaI/netI    0.0370
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            10069
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.27
_exptl_absorpt_coefficient_mu    0.192
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.308
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.214
_refine_diff_density_min         -0.280
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         4092
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0423
_refine_ls_R_factor_gt           0.0328
_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^)+(0.0465P)^2^+0.1983P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0867
_refine_ls_wR_factor_ref         0.0904
_reflns_number_gt                3374
_reflns_number_total             4092
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk3083.cif
_cod_data_source_block           II
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2015871
_cod_database_fobs_code          2015871