Synthesis of (±)-amathaspiramide F and discovery of an unusual stereocontrolling element for the [2,3]-Stevens rearrangement.
Soheili, Arash; Tambar, Uttam K.; Organic letters 15 (2013) 5138–5141; doi:10.1021/ol4025937

data_1556246
_publ_section_title
;
 Synthesis of (+-)-amathaspiramide F and discovery of an unusual
 stereocontrolling element for the [2,3]-Stevens rearrangement.
;
_journal_issue                   19
_journal_name_full               'Organic letters'
_journal_page_first              5138
_journal_page_last               5141
_journal_paper_doi               10.1021/ol4025937
_journal_volume                  15
_journal_year                    2013
_chemical_formula_moiety         'C17 H24 Br N O2'
_chemical_formula_sum            'C17 H24 Br N O2'
_chemical_formula_weight         354.28
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21 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                 101.814(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   17.426(2)
_cell_length_b                   23.338(3)
_cell_length_c                   18.322(2)
_cell_measurement_reflns_used    16088
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.9
_cell_volume                     7293.5(15)
_computing_cell_refinement       'Collect software, Nonius B.V. 1998'
_computing_data_collection       'Collect software, Nonius B.V. 1998'
_computing_data_reduction
;
DENZO and Scalepack (Otwinoski and Minor, 1997)
;
_computing_molecular_graphics    'XP SHELXTL/PC, Siemens Analytical'
_computing_structure_refinement  'XL SHELXTL/PC, Siemens Analytical'
_computing_structure_solution
;

SIR97 - Altomare A., Burla M.C., Camalli M., Cascarano G.L., Giacovazzo C., 
Guagliardi A., Moliterni A.G.G., Polidori G.,Spagna R.
;
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.1061
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            25426
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.91
_exptl_absorpt_coefficient_mu    2.258
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.870
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
DENZO and Scalepack (Otwinoski and Minor, 1997).
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.291
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2944
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.500
_refine_diff_density_min         -1.605
_refine_diff_density_rms         0.112
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.53(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.389
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     1509
_refine_ls_number_reflns         25426
_refine_ls_number_restraints     1003
_refine_ls_restrained_S_all      1.397
_refine_ls_R_factor_all          0.2349
_refine_ls_R_factor_gt           0.1063
_refine_ls_shift/su_max          0.243
_refine_ls_shift/su_mean         0.019
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0880P)^2^+5.6227P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2268
_refine_ls_wR_factor_ref         0.2965
_reflns_number_gt                11537
_reflns_number_total             25426
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol4025937_si_003.cif
_cod_data_source_block           as-2-054
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      P21
_cod_database_code               1556246