‘Reverse biomimetic’ synthesis of l-arogenate and its stabilized analogues from l-tyrosine
Eagling, Louise; Leonard, Daniel J.; Schwarz, Maria; Urruzuno, Iñaki; Boden, Grace; Wailes, J. Steven; Ward, John W.; Clayden, Jonathan; Chemical Science  (2021) –; doi:10.1039/D1SC03554A

data_1564278
_publ_section_title
;
 &#x2018;Reverse biomimetic&#x2019; synthesis of l-arogenate and its
 stabilized analogues from l-tyrosine
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D1SC03554A
_journal_year                    2021
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C16 H22 N2 O3'
_chemical_formula_sum            'C16 H22 N2 O3'
_chemical_formula_weight         290.35
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     iterative
_audit_creation_date             2016-11-15
_audit_creation_method
;
Olex2 1.2
(compiled 2016.11.07 svn.r3352 for OlexSys, GUI svn.r5261)
;
_audit_update_record
;
2021-03-12 deposited with the CCDC.	2021-07-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 95.964(3)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.7583(3)
_cell_length_b                   13.5711(6)
_cell_length_c                   9.6541(5)
_cell_measurement_reflns_used    2145
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23.52
_cell_measurement_theta_min      2.60
_cell_volume                     750.35(6)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution
;
Superflip (Palatinus & Chapuis, 2007;Palatinus & van der Lee, 2008;
Palatinus et al., 2012)
;
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'Bruker area detector'
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device       'Bruker Apex II kappa CCD area detector'
_diffrn_measurement_device_type  'Bruker Apex II kappa CCD area detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0447
_diffrn_reflns_av_unetI/netI     0.0519
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            10338
_diffrn_reflns_point_group_measured_fraction_full 0.968
_diffrn_reflns_point_group_measured_fraction_max 0.951
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         27.992
_diffrn_reflns_theta_min         2.121
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6354
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.0890 before and 0.0506 after correction.
The Ratio of minimum to maximum transmission is 0.8522.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_description       plate
_exptl_crystal_F_000             312
_exptl_crystal_size_max          0.534
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.136
_refine_diff_density_max         0.225
_refine_diff_density_min         -0.210
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details
;
 Flack x determined using 1168 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons and Flack (2004), Acta Cryst. A60, s61).
;
_refine_ls_abs_structure_Flack   -0.6(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     198
_refine_ls_number_reflns         3447
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0519
_refine_ls_R_factor_gt           0.0411
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0431P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0824
_refine_ls_wR_factor_ref         0.0867
_reflns_Friedel_coverage         0.835
_reflns_Friedel_fraction_full    0.933
_reflns_Friedel_fraction_max     0.903
_reflns_number_gt                2950
_reflns_number_total             3447
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1sc03554a2.cif
_cod_data_source_block           testm1
_cod_database_code               1564278
_shelxl_version_number           2013-4
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C2(H2), C3(H3A), C14(H14)
2.b Secondary CH2 refined with riding coordinates:
 C4(H4A,H4B)
2.c Aromatic/amide H refined with riding coordinates:
 C12(H12), C13(H13), C15(H15), C16(H16)
2.d Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C9(H9A,H9B,H9C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C)
;
_shelx_res_checksum              65407
_olex2_submission_special_instructions 'No special instructions were received'