Flexible synthesis of montanine-like alkaloids: revisiting the structure of montabuphine
Guan, Yifu; Zhang, Hongbin; Pan, Chengxue; Wang, Jia; Huang, Rong; Li, Qilin; Organic & Biomolecular Chemistry 10 (2012) 3812–; doi:10.1039/c2ob25374g

data_7152340
_publ_section_title
;
 Flexible synthesis of montanine-like alkaloids: revisiting the structure
 of montabuphine
;
_journal_issue                   19
_journal_name_full               'Organic &amp; Biomolecular Chemistry'
_journal_page_first              3812
_journal_paper_doi               10.1039/c2ob25374g
_journal_volume                  10
_journal_year                    2012
_chemical_formula_moiety         'C15 H17 N O4 S'
_chemical_formula_sum            'C15 H17 N O4 S'
_chemical_formula_weight         307.36
_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                 97.621(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.7625(13)
_cell_length_b                   10.6733(18)
_cell_length_c                   17.788(3)
_cell_measurement_reflns_used    1008
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      19.49
_cell_measurement_theta_min      2.23
_cell_volume                     1460.7(4)
_computing_cell_refinement       'Bruker apex II'
_computing_data_collection       'Bruker apex II'
_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  0.0525
_diffrn_reflns_av_sigmaI/netI    0.0621
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            8079
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         2.23
_exptl_absorpt_coefficient_mu    0.237
_exptl_absorpt_correction_T_max  0.9721
_exptl_absorpt_correction_T_min  0.9410
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.398
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.254
_refine_diff_density_min         -0.270
_refine_diff_density_rms         0.045
_refine_ls_extinction_coef       0.0012(12)
_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   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     193
_refine_ls_number_reflns         2585
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.1024
_refine_ls_R_factor_gt           0.0521
_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^)+(0.0562P)^2^+0.3923P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1144
_refine_ls_wR_factor_ref         0.1402
_reflns_number_gt                1533
_reflns_number_total             2585
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ob25374g.txt
_cod_data_source_block           111109a
_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)/c
_cod_database_code               7152340