Synthesis and evaluation of the first cis-cyclobutane-containing receptor for lipid A.
Bucholtz, Kevin M.; Gareiss, Peter C.; Tajc, Stephen G.; Miller, Benjamin L.; Organic & biomolecular chemistry 4 (2006) 3973–3979; doi:10.1039/b610727c

data_7151320
_publ_section_title
;
 Synthesis and evaluation of the first cis-cyclobutane-containing
 receptor for lipid A.
;
_journal_issue                   21
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              3973
_journal_page_last               3979
_journal_paper_doi               10.1039/b610727c
_journal_volume                  4
_journal_year                    2006
_chemical_formula_moiety         'C14 H17 N O3'
_chemical_formula_sum            'C14 H17 N O3'
_chemical_formula_weight         247.29
_chemical_name_common            milkb01
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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            8
_cell_length_a                   11.7699(8)
_cell_length_b                   9.9771(7)
_cell_length_c                   21.9102(15)
_cell_measurement_reflns_used    4858
_cell_measurement_temperature    193(2)
_cell_volume                     2572.9(3)
_computing_cell_refinement       'SAINT, Bruker'
_computing_data_collection       'SMART, Bruker'
_computing_data_reduction        'SAINT, Bruker'
_computing_molecular_graphics    'SHELXTL, Bruker'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker SMART CCD Platform'
_diffrn_measurement_method       'area detector, \w scans per \f'
_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  0.0313
_diffrn_reflns_av_sigmaI/netI    0.0265
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            10446
_diffrn_reflns_theta_full        23.30
_diffrn_reflns_theta_max         23.30
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.9911
_exptl_absorpt_correction_T_min  0.9831
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, R. Blessing, 1995'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.277
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.398
_refine_diff_density_min         -0.222
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         1909
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0718
_refine_ls_R_factor_gt           0.0568
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1127P)^2^+0.3543P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1521
_refine_ls_wR_factor_ref         0.1608
_reflns_number_gt                1520
_reflns_number_total             1909
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b610727c.txt
_cod_data_source_block           milkb01
_cod_database_code               7151320