Stereoselective Synthesis of γ-Lactams from Imines and Cyanosuccinic Anhydrides.
Tan, Darlene Q.; Younai, Ashkaan; Pattawong, Ommidala; Fettinger, James C.; Cheong, Paul Ha-Yeon; Shaw, Jared T.; Organic letters 15 (2013) 5126–5129; doi:10.1021/ol402554n

data_1512394
_publ_section_title
;
 Stereoselective Synthesis of \g-Lactams from Imines and Cyanosuccinic
 Anhydrides.
;
_journal_issue                   19
_journal_name_full               'Organic letters'
_journal_page_first              5126
_journal_page_last               5129
_journal_paper_doi               10.1021/ol402554n
_journal_volume                  15
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C22 H22 N2 O4'
_chemical_formula_sum            'C22 H22 N2 O4'
_chemical_formula_weight         378.42
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_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                   6.36610(10)
_cell_length_b                   16.2208(4)
_cell_length_c                   18.3651(4)
_cell_measurement_reflns_used    9894
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      71.88
_cell_measurement_theta_min      3.64
_cell_volume                     1896.44(7)
_computing_cell_refinement       'SAINT (8.18C) (Bruker, 2012)'
_computing_data_collection       'Apex2 (2012.2-0) (Bruker, 2012)'
_computing_data_reduction        'SAINT (8.18C) (Bruker, 2012)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0249
_diffrn_reflns_av_sigmaI/netI    0.0153
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            23083
_diffrn_reflns_theta_full        72.37
_diffrn_reflns_theta_max         72.37
_diffrn_reflns_theta_min         3.64
_exptl_absorpt_coefficient_mu    0.750
_exptl_absorpt_correction_T_max  0.9221
_exptl_absorpt_correction_T_min  0.7653
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2008/1 (Sheldrick, 2008)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.325
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.207
_refine_diff_density_min         -0.144
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(12)
_refine_ls_extinction_coef       0.0018(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     342
_refine_ls_number_reflns         3680
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0243
_refine_ls_R_factor_gt           0.0242
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0398P)^2^+0.3577P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0639
_refine_ls_wR_factor_ref         0.0640
_reflns_number_gt                3672
_reflns_number_total             3680
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol402554n_si_007.cif
_cod_data_source_block           jf2167f
_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 2.4.2 from
2011-04-26.

'_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_database_code               1512394
_shelx_res_checksum              25815
_shelx_hkl_checksum              81818