A stereoselective synthesis of anti-γ,δ-alkynyl- and -alkenyl-β-hydroxy-α-amino esters from tin(II) enolates of glycinate
Gridley, Jonathan J.; Coogan, Michael P.; Knight, David W.; Malik, K. M. Abdul; Sharland, Christopher M.; Singkhonrat, Jirada; Williams, Siân; Chemical Communications (Cambridge, United Kingdom)  (2003) 2550–2551; doi:10.1039/b306291k

data_7104834
_publ_section_title
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 A stereoselective synthesis of anti-\g,\d-alkynyl- and
 -alkenyl-\b-hydroxy-\a-amino esters from tin(II) enolates of glycinate
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   20
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              2550
_journal_page_last               2551
_journal_paper_doi               10.1039/b306291k
_journal_year                    2003
_chemical_formula_sum            'C20 H21 N O5 S'
_chemical_formula_weight         387.44
_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                   5.49000(10)
_cell_length_b                   16.0680(5)
_cell_length_c                   21.8780(9)
_cell_measurement_reflns_used    3248
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      3.07
_cell_volume                     1929.93(11)
_computing_cell_refinement       'DENZO (Otwinowski & Minor, 1997)'
_computing_data_collection       'DENZO (Otwinowski & Minor, 1997)'
_computing_data_reduction        'DENZO (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrigia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-96 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker Nonius kappa CCD area detector'
_diffrn_measurement_method       'phi & omega scan to fill Ewald sphere'
_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  0.0906
_diffrn_reflns_av_sigmaI/netI    0.0914
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            11361
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         3.07
_exptl_absorpt_coefficient_mu    0.198
_exptl_absorpt_correction_T_max  0.982
_exptl_absorpt_correction_T_min  0.967
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (Blessing, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.333
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.408
_refine_diff_density_min         -0.463
_refine_diff_density_rms         0.069
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.25(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         4271
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0905
_refine_ls_R_factor_gt           0.0616
_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^)+(0.0454P)^2^+1.3894P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1236
_refine_ls_wR_factor_ref         0.1375
_reflns_number_gt                3248
_reflns_number_total             4271
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b306291k.txt
_cod_data_source_block           malik1
_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.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7104834