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_7113631
_publ_section_title
;
 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            'C23 H27 N O5 S'
_chemical_formula_weight         429.52
_chemical_name_common
;N-Tosyl-(1-methyl-2-hydroxy-5-phenyl-4-pentynyl)glycine ethyl
ester
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 101.68(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   34.330(7)
_cell_length_b                   13.750(3)
_cell_length_c                   19.899(4)
_cell_measurement_reflns_used    'all obs. data'
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      2.96
_cell_volume                     9199(3)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Hooft, 1998)'
_computing_data_reduction        'DENZO (Otwinowski & Minor, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_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  0.0791
_diffrn_reflns_av_sigmaI/netI    0.0689
_diffrn_reflns_limit_h_max       44
_diffrn_reflns_limit_h_min       -44
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            114389
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.96
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.173
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.241
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       bloc
_exptl_crystal_F_000             3648
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.622
_refine_diff_density_min         -0.596
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    'calculated positions, riding model'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1123
_refine_ls_number_reflns         20899
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.1088
_refine_ls_R_factor_gt           0.0648
_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^)+(0.0680P)^2^+7.8178P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1471
_refine_ls_wR_factor_ref         0.1671
_reflns_number_gt                13802
_reflns_number_total             20899
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7104836
_cod_data_source_file            b306291k.txt
_cod_data_source_block           Compound_15
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/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_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7113631