Total Syntheses and Cytotoxicity of (R)- and (S)-Boehmeriasin A.
Leighty, Matthew W.; Georg, Gunda I.; ACS medicinal chemistry letters 2 (2011) 313–315; doi:10.1021/ml1003074

data_4501474
_publ_section_title
;
 Total Syntheses and Cytotoxicity of (R)- and (S)-Boehmeriasin A.
;
_journal_issue                   4
_journal_name_full               'ACS medicinal chemistry letters'
_journal_page_first              313
_journal_page_last               315
_journal_paper_doi               10.1021/ml1003074
_journal_volume                  2
_journal_year                    2011
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C24 H27 N O3'
_chemical_formula_sum            'C24 H27 N O3'
_chemical_formula_weight         377.47
_chemical_name_common            09047b
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_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                 93.028(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.378(3)
_cell_length_b                   6.5197(12)
_cell_length_c                   22.033(4)
_cell_measurement_reflns_used    2932
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.27
_cell_measurement_theta_min      2.34
_cell_volume                     1919.0(7)
_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  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0383
_diffrn_reflns_av_sigmaI/netI    0.0287
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            18876
_diffrn_reflns_theta_full        26.39
_diffrn_reflns_theta_max         26.39
_diffrn_reflns_theta_min         0.93
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.9898
_exptl_absorpt_correction_T_min  0.9626
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.306
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.321
_refine_diff_density_min         -0.186
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.3(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     511
_refine_ls_number_reflns         4281
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0617
_refine_ls_R_factor_gt           0.0428
_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^)+(0.0541P)^2^+0.7985P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1058
_refine_ls_wR_factor_ref         0.1185
_reflns_number_gt                3380
_reflns_number_total             4281
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ml1003074_si_002.cif
_cod_data_source_block           09047b
_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.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' 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_cell_volume        1919.1(6)
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               4501474