Unified synthesis of enantiopure β2h, β3h and β2,3-amino acids
Yu, Shouyun; Ishida, Hiroshi; Juarez-Garcia, M. Elisa; Bode, Jeffrey W.; Chemical Science 1 (2010) 637–; doi:10.1039/c0sc00317d

data_1515839
_publ_section_title
;
 Unified synthesis of enantiopure \b2h, \b3h and \b2,3-amino acids
;
_journal_issue                   5
_journal_name_full               'Chemical Science'
_journal_page_first              637
_journal_paper_doi               10.1039/c0sc00317d
_journal_volume                  1
_journal_year                    2010
_chemical_formula_sum            'C26 H41 N O9'
_chemical_formula_weight         511.60
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.816(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   5.9601(10)
_cell_length_b                   10.9170(17)
_cell_length_c                   20.891(4)
_cell_measurement_temperature    143(1)
_cell_volume                     1354.5(4)
_computing_data_collection       'CrystalClear (Rigaku, 1999)'
_computing_data_reduction        'CrystalClear (Rigaku, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare, 1999)'
_diffrn_ambient_temperature      143(1)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'CCD Area Detector'
_diffrn_measurement_device_type  'Rigaku Mercury'
_diffrn_measurement_method       'phi and omega rotations'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0243
_diffrn_reflns_av_sigmaI/netI    0.0149
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            15298
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.70
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8965
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.254
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             552
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.191
_refine_diff_density_min         -0.291
_refine_diff_density_rms         0.041
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.4(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.108
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     403
_refine_ls_number_reflns         2516
_refine_ls_number_restraints     107
_refine_ls_restrained_S_all      1.134
_refine_ls_R_factor_all          0.0453
_refine_ls_R_factor_gt           0.0430
_refine_ls_shift/su_max          0.036
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0567P)^2^+0.3720P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1044
_refine_ls_wR_factor_ref         0.1061
_reflns_number_gt                2381
_reflns_number_total             2516
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0sc00317d.txt
_cod_data_source_block           shelxl2
_cod_original_sg_symbol_H-M      'P 21 '
_cod_database_code               1515839