Application of the intramolecular Yamamoto vinylogous aldol reaction to the synthesis of macrolides.
Abramite, Joseph A.; Sammakia, Tarek; Organic letters 9 (2007) 2103–2106; doi:10.1021/ol0704901

data_1505383
_publ_section_title
;
 Application of the intramolecular Yamamoto vinylogous aldol reaction to
 the synthesis of macrolides.
;
_journal_issue                   11
_journal_name_full               'Organic letters'
_journal_page_first              2103
_journal_page_last               2106
_journal_paper_doi               10.1021/ol0704901
_journal_volume                  9
_journal_year                    2007
_chemical_formula_sum            'C23 H22 N2 O8'
_chemical_formula_weight         454.43
_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                78.8990(10)
_cell_angle_beta                 79.3390(10)
_cell_angle_gamma                83.5730(10)
_cell_formula_units_Z            4
_cell_length_a                   7.1901(3)
_cell_length_b                   16.9644(6)
_cell_length_c                   18.5261(7)
_cell_measurement_reflns_used    4629
_cell_measurement_temperature    144(2)
_cell_measurement_theta_max      31.41
_cell_measurement_theta_min      2.27
_cell_volume                     2172.34(14)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_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      144(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\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  0.0618
_diffrn_reflns_av_sigmaI/netI    0.1249
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            17175
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.81
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_T_max  0.9936
_exptl_absorpt_correction_T_min  0.9488
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details
;
absorption correction applied using SADABS 
(Blessing, R. H. Acta Crystallogr., Sect. A 1995, 51, 33-38)
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.389
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cut
_exptl_crystal_F_000             952
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.47
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.383
_refine_diff_density_min         -0.315
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.987
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     597
_refine_ls_number_reflns         9908
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.987
_refine_ls_R_factor_all          0.1238
_refine_ls_R_factor_gt           0.0688
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0802P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1658
_refine_ls_wR_factor_ref         0.1966
_reflns_number_gt                5793
_reflns_number_total             9908
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol0704901si20070226_075057.cif
_cod_data_source_block           mm2107fm
_cod_depositor_comments
;
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 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1505383