Influence of amino Acid stereocenters on the formation of bicyclic n,o-acetals.
Jiménez-Osés, Gonzalo; Aydillo, Carlos; Busto, Jesús H; Zurbano, María M; Peregrina, Jesús M; Avenoza, Alberto; The Journal of organic chemistry 79 (2014) 2556–2563; doi:10.1021/jo500015c

data_4029169
_publ_section_title
;
 Influence of amino Acid stereocenters on the formation of bicyclic
 n,o-acetals.
;
_journal_issue                   6
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              2556
_journal_page_last               2563
_journal_paper_doi               10.1021/jo500015c
_journal_volume                  79
_journal_year                    2014
_chemical_absolute_configuration syn
_chemical_formula_sum            'C12 H17 N O6'
_chemical_formula_weight         271.27
_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                   6.0540(7)
_cell_length_b                   9.9480(14)
_cell_length_c                   20.427(3)
_cell_measurement_reflns_used    7736
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      0.41
_cell_volume                     1230.2(3)
_computing_cell_refinement       'Denzo and Scalepak (1997)'
_computing_data_collection       'Nonius Kappa CCD'
_computing_data_reduction        'Denzo and Scalepak (1997)'
_computing_molecular_graphics    'ORTEP III'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1171
_diffrn_reflns_av_sigmaI/netI    0.1308
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            6937
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.44
_diffrn_reflns_theta_min         3.63
_exptl_absorpt_coefficient_mu    0.118
_exptl_absorpt_correction_T_max  0.9941
_exptl_absorpt_correction_T_min  0.9325
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.465
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.429
_refine_diff_density_min         -0.371
_refine_diff_density_rms         0.092
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -2(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.098
_refine_ls_hydrogen_treatment    refxyz
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2747
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.098
_refine_ls_R_factor_all          0.1589
_refine_ls_R_factor_gt           0.0913
_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^)+(0.0691P)^2^+2.2584P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1901
_refine_ls_wR_factor_ref         0.2263
_reflns_number_gt                1694
_reflns_number_total             2747
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo500015c_si_003.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_database_code               4029169