Diastereo- and Enantioselective Synthesis of β-Hydroxy-α-Amino Acids: Application to the Synthesis of a Key Intermediate for Lactacystin
Qiong Li; Shao-Bo Yang; Zhihui Zhang; Lei Li; Peng-Fei Xu; Journal of Organic Chemistry 74 (2009) 1627–1631; doi:10.1021/jo8023973

data_4024341
_publ_contact_author_address
;
 State Key Laboratory of Applied Organic Chemistry,
 Lanzhou University, 73000, CHINA
;
_publ_contact_author_email       ' xupf@lzu.edu.cn '
_publ_contact_author_fax         ' 86-931-8915557 '
_publ_contact_author_name        'Peng-Fei Xu'
_publ_contact_author_phone       ' 86-931-8912281 '
_publ_section_title
;
Diastereo- and Enantioselective Synthesis of \b-Hydroxy-\a-Amino Acids:
Application to the Synthesis of a Key Intermediate for Lactacystin
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1627
_journal_page_last               1631
_journal_paper_doi               10.1021/jo8023973
_journal_volume                  74
_journal_year                    2009
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C20 H25 N O4 '
_chemical_formula_sum            'C20 H25 N O4'
_chemical_formula_weight         343.42
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_audit_creation_date             'Sat Jun 19 18:59:12 2004'
_audit_creation_method           'by teXsan'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.349(4)
_cell_length_b                   13.271(4)
_cell_length_c                   13.249(5)
_cell_measurement_reflns_used    4392
_cell_measurement_temperature    173.2
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.1
_cell_volume                     1819(1)
_computing_cell_refinement       'MSC/AFC Diffractometer Control Software'
_computing_data_collection
;
MSC/AFC Diffractometer Control Software (Molecular
Structure Corporation, 1991)
;
_computing_data_reduction
;
teXsan (Molecular Structure Corporation, 1999)
;
_computing_molecular_graphics    'ORTEPIII(Johnson, 1996)'
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'teXsan Ver. 1.10'
_computing_structure_solution    SIR92
_diffrn_detector_area_resol_mean 28.57
_diffrn_measured_fraction_theta_full 0.9954
_diffrn_measured_fraction_theta_max 0.9954
_diffrn_measurement_device_type  'Rigaku/MSC Mercury CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.042
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            14838
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_exptl_absorpt_coefficient_mu    0.000
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.901
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Jacobson, 1998)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.253
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.150
_refine_diff_density_max         0.20
_refine_diff_density_min         -0.17
_refine_ls_abs_structure_details 'Flack H.D. (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.5(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     227
_refine_ls_number_reflns         4134
_refine_ls_R_factor_gt           0.0472
_refine_ls_shift/su_max          0.0006
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[\s^2^(Fo) + 0.00063|Fo|^2^]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0597
_reflns_number_gt                3467
_reflns_number_total             2359
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            jo8023973_si_009.cif
_cod_data_source_block           '_compd-3i'
_cod_original_sg_symbol_H-M      'P 21 21 21   '
_cod_original_formula_sum        'C20 H25 N O4 '
_cod_database_code               4024341