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_4116596
_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            'C20 H27 N O3'
_chemical_formula_weight         329.43
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.9921(6)
_cell_length_b                   18.2387(8)
_cell_length_c                   5.9150(3)
_cell_measurement_reflns_used    60
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      19.32
_cell_measurement_theta_min      3.65
_cell_volume                     1833.14(14)
_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 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0628
_diffrn_reflns_av_sigmaI/netI    0.0907
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            10949
_diffrn_reflns_theta_full        26.42
_diffrn_reflns_theta_max         26.42
_diffrn_reflns_theta_min         1.64
_diffrn_standards_decay_%        <1
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.194
_exptl_crystal_description       plate
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.301
_refine_diff_density_min         -0.278
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.4(18)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3760
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.1295
_refine_ls_R_factor_gt           0.0553
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0492P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1114
_refine_ls_wR_factor_ref         0.1287
_reflns_number_gt                1984
_reflns_number_total             3760
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja992658m_12.cif
_cod_data_source_block           sls13
_cod_original_cell_volume        1833.1(1)
_cod_database_code               4116596