Cytotoxic alkaloids from the whole plants of zephyranthes Candida.
Luo, Zengwei; Wang, Fuqian; Zhang, Jinwen; Li, Xingyao; Zhang, Mengke; Hao, Xincai; Xue, Yongbo; Li, Yan; Horgen, F. David; Yao, Guangmin; Zhang, Yonghui; Journal of natural products 75 (2012) 2113–2120; doi:10.1021/np3005425

data_1508560
_publ_section_title
;
 Cytotoxic alkaloids from the whole plants of zephyranthes Candida.
;
_journal_issue                   12
_journal_name_full               'Journal of natural products'
_journal_page_first              2113
_journal_page_last               2120
_journal_paper_doi               10.1021/np3005425
_journal_volume                  75
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_sum            'C18 H22 Cl N O5'
_chemical_formula_weight         367.82
_space_group_IT_number           76
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4w'
_symmetry_space_group_name_H-M   'P 41'
_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            4
_cell_length_a                   10.0493(12)
_cell_length_b                   10.0493(12)
_cell_length_c                   17.167(4)
_cell_measurement_reflns_used    1142
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      17.25
_cell_measurement_theta_min      2.35
_cell_volume                     1733.7(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.1008
_diffrn_reflns_av_sigmaI/netI    0.1116
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            11307
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.03
_exptl_absorpt_coefficient_mu    0.249
_exptl_absorpt_correction_T_max  0.9518
_exptl_absorpt_correction_T_min  0.9518
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.409
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.227
_refine_diff_density_min         -0.179
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.04(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     241
_refine_ls_number_reflns         3406
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.1170
_refine_ls_R_factor_gt           0.0745
_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^)+(0.0429P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1339
_refine_ls_wR_factor_ref         0.1496
_reflns_number_gt                2293
_reflns_number_total             3406
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            np3005425_si_001.cif
_cod_data_source_block           110330cm
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
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 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P4(1)
_cod_database_code               1508560