Asymmetric synthesis of β-pyridyl-β-amino acid derivatives
Steven D. Bull; Stephen G. Davies; David J. Fox; Massimo Gianotti; Peter M. Kelly; Camille Pierres; Edward D. Savory; Andrew D. Smith; J. Chem. Soc., Perkin Trans. 1  (2002) 1858–1868; doi:10.1039/b204653a

data_7204451
_publ_section_title
;
 Asymmetric synthesis of \b-pyridyl-\b-amino acid derivatives
;
_journal_issue                   16
_journal_name_full               'J. Chem. Soc., Perkin Trans. 1'
_journal_page_first              1858
_journal_page_last               1868
_journal_paper_doi               10.1039/b204653a
_journal_year                    2002
_chemical_compound_source
;
?
;
_chemical_formula_moiety         ' C28 H34 N2 O3 '
_chemical_formula_sum            'C28 H34 N2 O3'
_chemical_formula_weight         446.59
_chemical_melting_point          ?
_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
_audit_creation_date             01-15-06
_audit_creation_method           CRYSTALS_ver_12-03-99
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.4818(13)
_cell_length_b                   12.894(3)
_cell_length_c                   17.1468(18)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293
_cell_measurement_theta_max      43
_cell_measurement_theta_min      22
_cell_volume                     2538.5(7)
_computing_cell_refinement
; 
SPARE 
;
_computing_data_collection
; 
DATA COLLECTION 
;
_computing_data_reduction
; 
SPARE 
;
_computing_molecular_graphics
; 
CAMERON (Watkin et al 1996) 
;
_computing_publication_material
; 
CRYSTALS (Watkin et all 2001) 
;
_computing_structure_refinement
; 
CRYSTALS (Watkin et all 2001) 
;
_computing_structure_solution
; 
SIR92 (Altomare et al, 1994) 
;
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type
; 
Unknown 
;
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54180
_diffrn_reflns_av_R_equivalents  0.00
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2953
_diffrn_reflns_theta_max         74.20
_diffrn_reflns_theta_min         4.29
_diffrn_standards_decay_%        0.89
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.598
_exptl_absorpt_correction_T_max  0.70
_exptl_absorpt_correction_T_min  0.69
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details
; 
Azimutal absorption correction (North et al, 1968) 
;
_exptl_crystal_colour            ' colourless '
_exptl_crystal_density_diffrn    1.168
_exptl_crystal_density_meas      ?
_exptl_crystal_description       ' cubem '
_exptl_crystal_F_000             962.554
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.80
_exptl_crystal_size_min          0.60
_refine_diff_density_max         0.28
_refine_diff_density_min         -0.13
_refine_ls_extinction_coef       2159.6(573)
_refine_ls_extinction_method     'Larson 1970 Crystallographic Computing eq 22'
_refine_ls_goodness_of_fit_ref   1.1288
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     299
_refine_ls_number_reflns         2838
_refine_ls_R_factor_gt           0.0427
_refine_ls_shift/su_max          0.000196
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
Chebychev polynomial with 3 parameters, Carruthers & Watkin , 1979, 
5.13    0.335     3.47    
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0437
_reflns_limit_h_max              14
_reflns_limit_h_min              0
_reflns_limit_k_max              16
_reflns_limit_k_min              0
_reflns_limit_l_max              21
_reflns_limit_l_min              0
_reflns_number_gt                2838
_reflns_number_total             2927
_reflns_threshold_expression     >3.00\s(I)
_cod_data_source_file            b204653a.txt
_cod_data_source_block           CRYSTALS_cif_ES27
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic ' changed to 'orthorhombic'
according to '/home/adriana/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 1555 2011-01-17 13:19:09Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 
;
_cod_original_cell_volume        2538.5
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_original_formula_sum        ' C28 H34 N2 O3 '
_cod_database_code               7204451