Macrocycle ring expansion by double Stevens rearrangement.
Ellis-Holder, Keisha K; Peppers, Brian P.; Kovalevsky, Andrei Yu; Diver, Steven T.; Organic letters 8 (2006) 2511–2514; doi:10.1021/ol060657a

data_1505988
_publ_section_title
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 Macrocycle ring expansion by double Stevens rearrangement.
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_journal_issue                   12
_journal_name_full               'Organic letters'
_journal_page_first              2511
_journal_page_last               2514
_journal_paper_doi               10.1021/ol060657a
_journal_volume                  8
_journal_year                    2006
_chemical_formula_sum            'C31 H36 N2 O9'
_chemical_formula_weight         580.62
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                103.771(2)
_cell_angle_beta                 99.338(2)
_cell_angle_gamma                110.5450(10)
_cell_formula_units_Z            2
_cell_length_a                   9.5255(3)
_cell_length_b                   10.5137(3)
_cell_length_c                   16.1411(7)
_cell_measurement_temperature    90(2)
_cell_volume                     1415.47(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker APEX 1000'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0528
_diffrn_reflns_av_sigmaI/netI    0.0426
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            22670
_diffrn_reflns_theta_full        30.04
_diffrn_reflns_theta_max         30.04
_diffrn_reflns_theta_min         1.35
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.9900
_exptl_absorpt_correction_T_min  0.9705
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.362
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.761
_refine_diff_density_min         -0.241
_refine_diff_density_rms         0.067
_refine_ls_extinction_coef       0.042(2)
_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   1.023
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     384
_refine_ls_number_reflns         8193
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0534
_refine_ls_R_factor_gt           0.0398
_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^)+(0.0601P)^2^+0.2614P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1000
_refine_ls_wR_factor_ref         0.1096
_reflns_number_gt                6558
_reflns_number_total             8193
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol060657asi20060428_034037.cif
_cod_data_source_block           p-1
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 
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_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1505988