2,5-Disubstituted pyrrolidines: versatile regioselective and diastereoselective synthesis by enamine reduction and subsequent alkylation
Hussaini, Syed Raziullah; Moloney, Mark G.; Organic & Biomolecular Chemistry 1 (2003) 1838–; doi:10.1039/b303789d

data_7151467
_publ_section_title
;
 2,5-Disubstituted pyrrolidines: versatile regioselective and
 diastereoselective synthesis by enamine reduction and subsequent
 alkylation
;
_journal_issue                   11
_journal_name_full               'Organic &amp;  Biomolecular Chemistry'
_journal_page_first              1838
_journal_paper_doi               10.1039/b303789d
_journal_volume                  1
_journal_year                    2003
_chemical_absolute_configuration syn
_chemical_compound_source
;
synthesis as described
;
_chemical_formula_moiety         ' C21 H27 N1 O7 '
_chemical_formula_sum            'C21 H27 N O7'
_chemical_formula_weight         405.45
_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
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.5590(3)
_cell_length_b                   11.8196(3)
_cell_length_c                   15.3885(4)
_cell_measurement_reflns_used    11033
_cell_measurement_temperature    150
_cell_measurement_theta_max      28
_cell_measurement_theta_min      5
_cell_volume                     2102.42(9)
_computing_cell_refinement
;                                                             
KappaCCD software 'DENZO' (Otwinowski & Minor, 1996)          
;
_computing_data_collection
;                                                             
KappaCCD software 'Collect' (Nonius, 2000)                    
;
_computing_data_reduction
;                                                             
KappaCCD software 'DENZO' (Otwinowski & Minor, 1996)          
;
_computing_publication_material
;                                                             
CRYSTALS (Watkin et al, 2001)                                 
;
_computing_structure_refinement
;                                                             
CRYSTALS (Watkin et al, 2001)                                 
;
_computing_structure_solution    'SIR92 (Giacovazzo et al, 1992)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type
;                                                             
Nonius KappaCCD                                               
;
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.039
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            11033
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         5.11
_diffrn_standards_decay_%        0.00
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  0.97
_exptl_absorpt_correction_T_min  0.96
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
Denzo/Scalepack (Otwinowski & Minor, 1996) 
;
_exptl_crystal_colour            ' colourless '
_exptl_crystal_density_diffrn    1.281
_exptl_crystal_description       ' block '
_exptl_crystal_F_000             864.
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.12
_refine_diff_density_min         -0.14
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0751
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         1900
_refine_ls_R_factor_gt           0.0305
_refine_ls_shift/su_max          0.036722
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
Chebychev polynomial with 3 parameters (Carruthers & Watkin , 1979)
0.485    0.213    0.256    
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0346
_reflns_limit_h_max              14
_reflns_limit_h_min              0
_reflns_limit_k_max              15
_reflns_limit_k_min              0
_reflns_limit_l_max              19
_reflns_limit_l_min              0
_reflns_number_gt                1900
_reflns_number_total             2696
_reflns_threshold_expression     >3.00\s(I)
_cod_data_source_file            b303789d.txt
_cod_data_source_block           cis-5b.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/adriana/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_enum 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_cell_volume        2102.4
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_original_formula_sum        ' C21 H27 N1 O7 '
_cod_database_code               7151467