Asymmetric aza-[3+3] annulation in the synthesis of indolizidines: an unexpected reversal of regiochemistry.
Buchanan, Grant S.; Dai, Huifang; Hsung, Richard P.; Gerasyuto, Aleksey I.; Scheinebeck, Casi M.; Organic letters 13 (2011) 4402–4405; doi:10.1021/ol2017438

data_1502380
_publ_section_title
;
 Asymmetric aza-[3+3] annulation in the synthesis of indolizidines: an
 unexpected reversal of regiochemistry.
;
_journal_issue                   16
_journal_name_full               'Organic letters'
_journal_page_first              4402
_journal_page_last               4405
_journal_paper_doi               10.1021/ol2017438
_journal_volume                  13
_journal_year                    2011
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C25 H29 N O4'
_chemical_formula_sum            'C25 H29 N O4'
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_chemical_name_common            11106a
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_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.8701(5)
_cell_length_b                   13.7261(11)
_cell_length_c                   26.946(2)
_cell_measurement_reflns_used    2989
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      20.73
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_cell_volume                     2171.1(3)
_computing_cell_refinement       'Bruker SAINT'
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_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
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_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
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_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
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_diffrn_radiation_monochromator  graphite
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_diffrn_reflns_number            21101
_diffrn_reflns_theta_full        25.03
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_exptl_absorpt_coefficient_mu    0.084
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_exptl_absorpt_correction_T_min  0.9753
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008/1)'
_exptl_crystal_colour            colourless
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_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             872
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_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0376P)^2^+0.3200P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_gt                1609
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_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol2017438_si_003.cif
_cod_data_source_block           11106a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1502380