Peganumine B-I and two enantiomers, new alkaloids from the seeds of Peganum harmala Linn and its potential cytotoxicity and cholinesterases inhibitory activities
Yang, Yadi; Cheng, Xuemei; Liu, Wei; Han, Zhu-zhen; Chou, Guixin; Wang, Ying; Sun, Duxin; Wang, Zhengtao; Wang, Changhong; RSC Adv.  (2016) –; doi:10.1039/C6RA00086J

data_7224038
_publ_section_title
;
 Peganumine B-I and two enantiomers, new alkaloids from the seeds of
 Peganum harmala Linn and its potential cytotoxicity and cholinesterases
 inhibitory activities
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA00086J
_journal_year                    2016
_chemical_absolute_configuration ad
_chemical_formula_sum            'C18 H22 N2 O5'
_chemical_formula_weight         346.38
_space_group_IT_number           145
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'P 32'
_symmetry_space_group_name_H-M   'P 32'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-04-19 deposited with the CCDC.
2016-01-22 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   13.7436(2)
_cell_length_b                   13.7436(2)
_cell_length_c                   7.59540(10)
_cell_measurement_reflns_used    5797
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      69.60
_cell_measurement_theta_min      6.44
_cell_volume                     1242.46(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_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      140(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0452
_diffrn_reflns_av_sigmaI/netI    0.0458
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            9294
_diffrn_reflns_theta_full        70.12
_diffrn_reflns_theta_max         70.12
_diffrn_reflns_theta_min         6.44
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.845
_exptl_absorpt_correction_T_max  0.9590
_exptl_absorpt_correction_T_min  0.8837
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.389
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             552
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.241
_refine_diff_density_min         -0.242
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.06(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     230
_refine_ls_number_reflns         2890
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0385
_refine_ls_R_factor_gt           0.0380
_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^)+(0.0773P)^2^+0.0352P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1048
_refine_ls_wR_factor_ref         0.1055
_reflns_number_gt                2824
_reflns_number_total             2890
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra00086j2.cif
_cod_data_source_block           cu_dm14027_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 
;
_cod_original_sg_symbol_H-M      P3(2)
_cod_database_code               7224038