Stereodivergent syntheses of conduramines and aminocyclitols.
Alegret, Carlos; Benet-Buchholz, Jordi; Riera, Antoni; Organic letters 8 (2006) 3069–3072; doi:10.1021/ol061022e

data_1506061
_publ_contact_author
;
    Dr. Benet-Buchholz, Jordi
    Institut Catal\`a d'Investigaci\'o Qu\'imica (ICIQ)    
    X-ray Diffraction Unit
    Avgda. Pa\=isos Catalans 16
    E-43007 Tarragona, Spain
;
_publ_section_title
;
 Stereodivergent syntheses of conduramines and aminocyclitols.
;
_journal_issue                   14
_journal_name_full               'Organic letters'
_journal_page_first              3069
_journal_page_last               3072
_journal_paper_doi               10.1021/ol061022e
_journal_volume                  8
_journal_year                    2006
_chemical_absolute_configuration rm
_chemical_formula_sum            'C20 H31 N O9'
_chemical_formula_weight         429.46
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_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
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 100.459(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.7600(6)
_cell_length_b                   5.6869(4)
_cell_length_c                   20.2700(13)
_cell_measurement_reflns_used    7562
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      45.01
_cell_measurement_theta_min      2.52
_cell_volume                     1106.38(13)
_computing_cell_refinement       'Bruker-Nonius Apex v1.0-22 2002'
_computing_data_collection       'Bruker-Nonius Apex v1.0-22 2002'
_computing_data_reduction        'SAINT+ Version 7.06A Bruker-Nonius, 2004'
_computing_molecular_graphics    'Shelxtl Version 6.12 (Sheldrick, 2001)'
_computing_publication_material  'Shelxtl Version 6.12 (Sheldrick, 2001)'
_computing_structure_refinement  'Shelxtl Version 6.12 (Sheldrick, 2001)'
_computing_structure_solution    'Shelxtl Version 6.12 (Sheldrick, 2001)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 512
_diffrn_detector_type            '4K CCD area detector APEX II'
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Kappa 4-axis goniometer bruker-nonius'
_diffrn_measurement_method
;
 Fullsphere data collection, phi and omega scans
;
_diffrn_measurement_specimen_support
'magnetic support whith 10 micron nylon fiber cryoloop'
_diffrn_radiation_monochromator  'Multilayer Montel 200 mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0552
_diffrn_reflns_av_sigmaI/netI    0.0461
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            62817
_diffrn_reflns_theta_full        45.39
_diffrn_reflns_theta_max         45.39
_diffrn_reflns_theta_min         2.52
_diffrn_source                   'rotating anode X-ray tube'
_diffrn_source_current           90
_diffrn_source_power             50
_diffrn_source_size              '3 mm x 0.3 mm fine focus'
_diffrn_source_type              'Bruker-Nonius FR 591'
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6161
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
; 
 SADABS Version 2.1 2003 Bruker-Nonius
 Blessing, Acta Cryst. (1995) A51 33-38
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.289
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             460
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.737
_refine_diff_density_min         -0.319
_refine_diff_density_rms         0.073
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.1(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     395
_refine_ls_number_reflns         16859
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0524
_refine_ls_R_factor_gt           0.0439
_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^)+(0.0644P)^2^+0.0157P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1102
_refine_ls_wR_factor_ref         0.1165
_reflns_number_gt                14891
_reflns_number_total             16859
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol061022esi20060428_063129.cif
_cod_data_source_block           cam22203a_0m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_diffrn_measurement_specimen_suppport' tag replaced with
'_diffrn_measurement_specimen_support'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               1506061