Synthesis, structural characterization and biological activity of two diastereomeric JA-Ile macrolactones.
Jimenez-Aleman, Guillermo H; Machado, Ricardo A. R.; Görls, Helmar; Baldwin, Ian T.; Boland, Wilhelm; Organic & biomolecular chemistry 13 (2015) 5885–5893; doi:10.1039/c5ob00362h

data_7154521
_publ_section_title
;
 Synthesis, structural characterization and biological activity of two
 diastereomeric JA-Ile macrolactones.
;
_journal_issue                   21
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              5885
_journal_page_last               5893
_journal_paper_doi               10.1039/c5ob00362h
_journal_volume                  13
_journal_year                    2015
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C18 H27 N O4'
_chemical_formula_sum            'C18 H27 N O4'
_chemical_formula_weight         321.41
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-12-17 deposited with the CCDC.
2015-03-17 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.6931(3)
_cell_length_b                   21.8725(4)
_cell_length_c                   5.0383(1)
_cell_measurement_temperature    133(2)
_cell_volume                     1729.38(6)
_computing_cell_refinement       DENZO
_computing_data_collection       COLLECT
_computing_data_reduction        DENZO
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      133(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'phi- + omega-scan'
_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  0.0599
_diffrn_reflns_av_sigmaI/netI    0.0499
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            12151
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.27
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.234
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.075
_exptl_crystal_size_mid          0.054
_exptl_crystal_size_min          0.048
_refine_diff_density_max         0.207
_refine_diff_density_min         -0.192
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details
;
 Flack x determined using 1165 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -1.4(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.164
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         3985
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.164
_refine_ls_R_factor_all          0.0617
_refine_ls_R_factor_gt           0.0466
_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^)+(0.0215P)^2^+0.6181P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0881
_refine_ls_wR_factor_ref         0.0946
_reflns_number_gt                3378
_reflns_number_total             3985
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ob00362h2.cif
_cod_data_source_block           FO5315
_cod_database_code               7154521