Bio-inspired synthesis of rare and unnatural carbohydrates and cyclitols through strain driven epimerization
Raja Mohanrao; Aromal Asokan; Kana M. Sureshan; Chem.Commun. 50 (2014) 6707–; doi:10.1039/C4CC00868E

data_7113988
_publ_section_title
;
 Bio-inspired synthesis of rare and unnatural carbohydrates and cyclitols
 through strain driven epimerization
;
_journal_name_full               Chem.Commun.
_journal_page_first              6707
_journal_paper_doi               10.1039/C4CC00868E
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C19 H24 O7'
_chemical_formula_sum            'C19 H24 O7'
_chemical_formula_weight         364.38
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.306(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   9.0182(9)
_cell_length_b                   26.030(3)
_cell_length_c                   15.8147(15)
_cell_measurement_temperature    293(2)
_cell_volume                     3696.5(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0805
_diffrn_reflns_av_sigmaI/netI    0.0796
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            22771
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.51
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.9901
_exptl_absorpt_correction_T_min  0.9659
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.310
_exptl_crystal_density_meas      1.308
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1552
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.333
_refine_diff_density_min         -0.301
_refine_diff_density_rms         0.084
_refine_ls_extinction_coef       0.0035(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     470
_refine_ls_number_reflns         5670
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1356
_refine_ls_R_factor_gt           0.0759
_refine_ls_shift/su_max          0.014
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1092P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1728
_refine_ls_wR_factor_ref         0.2070
_reflns_number_gt                2942
_reflns_number_total             5670
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c4cc00868e3.cif
_cod_data_source_block           0071_211112_kms_j_iv_293_0m
_cod_original_sg_symbol_H-M      'P2(1)/c  '
_cod_database_code               7113988