7-Ethynylcoumarins: Selective Inhibitors of Human Cytochrome P450s 1A1 and 1A2.
Liu, Jiawang; Nguyen, Thong T.; Dupart, Patrick S.; Sridhar, Jayalakshmi; Zhang, Xiaoyi; Zhu, Naijue; Stevens, Cheryl L Klein; Foroozesh, Maryam; Chemical research in toxicology 25 (2012) 1047–1057; doi:10.1021/tx300023p

data_1507754
_publ_section_title
;
 7-Ethynylcoumarins: Selective Inhibitors of Human Cytochrome P450s 1A1
 and 1A2.
;
_journal_issue                   5
_journal_name_full               'Chemical research in toxicology'
_journal_page_first              1047
_journal_page_last               1057
_journal_paper_doi               10.1021/tx300023p
_journal_volume                  25
_journal_year                    2012
_chemical_formula_sum            'C18 H12 O2'
_chemical_formula_weight         260.28
_chemical_name_common            7-ethynylcoumarin
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 104.050(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.8113(10)
_cell_length_b                   10.3682(12)
_cell_length_c                   14.2027(18)
_cell_measurement_reflns_used    2437
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      24.31
_cell_measurement_theta_min      2.45
_cell_volume                     1401.6(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Platon (v-290610)'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker SMART X2S'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'doubly curved silicon crystal'
_diffrn_radiation_source         'microfocus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0363
_diffrn_reflns_av_sigmaI/netI    0.0291
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8163
_diffrn_reflns_theta_full        24.98
_diffrn_reflns_theta_max         24.98
_diffrn_reflns_theta_min         2.29
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.9921
_exptl_absorpt_correction_T_min  0.9331
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.233
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.88
_exptl_crystal_size_mid          0.88
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.159
_refine_diff_density_min         -0.112
_refine_diff_density_rms         0.031
_refine_ls_extinction_coef       0.057(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     183
_refine_ls_number_reflns         2434
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0622
_refine_ls_R_factor_gt           0.0396
_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^)+(0.0666P)^2^+0.1033P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1078
_refine_ls_wR_factor_ref         0.1230
_reflns_number_gt                1654
_reflns_number_total             2434
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            tx300023p_si_001.cif
_cod_data_source_block           scan_0m_p21_n
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1507754