A Strategy for Macrocyclic Ring Closure and Functionalization Aimed toward Split-Pool Syntheses
Daesung Lee; Jason K. Sello; Stuart L. Schreiber; Journal of the American Chemical Society 121 (1999) 10648–10649; doi:10.1021/ja992658m

data_4116588
_publ_section_title
;
 A Strategy for Macrocyclic Ring Closure and Functionalization Aimed
 toward Split-Pool Syntheses
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10648
_journal_page_last               10649
_journal_paper_doi               10.1021/ja992658m
_journal_volume                  121
_journal_year                    1999
_chemical_formula_sum            'C18 H23 N O4'
_chemical_formula_weight         317.37
_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                 92.719(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.1179(4)
_cell_length_b                   23.510(1)
_cell_length_c                   9.4519(5)
_cell_measurement_reflns_used    173
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      19.72
_cell_measurement_theta_min      3.41
_cell_volume                     1801.88(15)
_computing_cell_refinement       'SMART (Bruker, V4.050, 1995)'
_computing_data_collection       'ASTRO (Bruker, V4.050, 1995)'
_computing_data_reduction        'SAINT (Bruker, V5.A06, 1997)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1998, ver 5.10)'
_computing_publication_material  'CIFTAB (Sheldrick, 1993)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.901
_diffrn_measured_fraction_theta_max 0.901
_diffrn_measurement_method       '\w, 0.3 deg'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0297
_diffrn_reflns_av_sigmaI/netI    0.0445
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            11860
_diffrn_reflns_theta_full        27.61
_diffrn_reflns_theta_max         27.61
_diffrn_reflns_theta_min         1.73
_diffrn_standards_decay_%        <1
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_description       block
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.320
_refine_diff_density_min         -0.233
_refine_diff_density_rms         0.031
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.3(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.009
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     415
_refine_ls_number_reflns         6706
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.0575
_refine_ls_R_factor_gt           0.0405
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0477P)^2^+0.0945P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0887
_refine_ls_wR_factor_ref         0.0953
_reflns_number_gt                5322
_reflns_number_total             6706
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja992658m_04.cif
_cod_data_source_block           sls7
_cod_original_cell_volume        1801.9(2)
_cod_database_code               4116588