Synthesis of fully substituted polyhydroxylated pyrrolizidines via Cope-House cyclization.
Zhang, Wei; Sato, Kasumi; Kato, Atsushi; Jia, Yue-Mei; Hu, Xiang-Guo; Wilson, Francis X.; van Well, Renate; Horne, Graeme; Fleet, George W. J.; Nash, Robert J.; Yu, Chu-Yi; Organic letters 13 (2011) 4414–4417; doi:10.1021/ol201749c

data_1502384
_publ_section_title
;
 Synthesis of fully substituted polyhydroxylated pyrrolizidines via
 Cope-House cyclization.
;
_journal_issue                   16
_journal_name_full               'Organic letters'
_journal_page_first              4414
_journal_page_last               4417
_journal_paper_doi               10.1021/ol201749c
_journal_volume                  13
_journal_year                    2011
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C33 H39 N O4 S2'
_chemical_formula_sum            'C33 H39 N O4 S2'
_chemical_formula_weight         577.77
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                   8.7786(18)
_cell_length_b                   14.075(3)
_cell_length_c                   24.580(5)
_cell_measurement_reflns_used    9334
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.4652
_cell_measurement_theta_min      1.4468
_cell_volume                     3037.1(11)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics
;
 Mercury: visualization and analysis of crystal structures, C. F. Macrae,
 P. R. Edgington, P. McCabe, E. Pidcock, G. P. Shields, R. Taylor,
 M. Towler and J. van de Streek, J. Appl. Cryst., 39, 453-457, 2006.
;
_computing_publication_material  'SHELX-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'MM007HF + CCD (Saturn724+)'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0543
_diffrn_reflns_av_sigmaI/netI    0.0698
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            15997
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    0.213
_exptl_absorpt_correction_T_max  0.9526
_exptl_absorpt_correction_T_min  0.9318
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.264
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1232
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.217
_refine_diff_density_min         -0.255
_refine_diff_density_rms         0.047
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         6919
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0672
_refine_ls_R_factor_gt           0.0582
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0250P)^2^+1.3329P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1045
_refine_ls_wR_factor_ref         0.1093
_reflns_number_gt                6147
_reflns_number_total             6919
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol201749c_si_003.cif
_cod_data_source_block           a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Numerical' changed to
'numerical' 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        3037.0(11)
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1502384