Gateway synthesis of daphnane congeners and their protein kinase C affinities and cell-growth activities.
Wender, Paul A.; Buschmann, Nicole; Cardin, Nathan B.; Jones, Lisa R.; Kan, Cindy; Kee, Jung-Min; Kowalski, John A.; Longcore, Kate E.; Nature chemistry 3 (2011) 615–619; doi:10.1038/nchem.1074

data_1507955
_publ_section_title
;
 Gateway synthesis of daphnane congeners and their protein kinase C
 affinities and cell-growth activities.
;
_journal_issue                   8
_journal_name_full               'Nature chemistry'
_journal_page_first              615
_journal_page_last               619
_journal_paper_doi               10.1038/nchem.1074
_journal_volume                  3
_journal_year                    2011
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C27 H42 I2 O8 Si'
_chemical_formula_sum            'C27 H42 I2 O8 Si'
_chemical_formula_weight         776.50
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 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            4
_cell_length_a                   10.1997(4)
_cell_length_b                   12.2530(5)
_cell_length_c                   24.8070(10)
_cell_measurement_reflns_used    9983
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.26
_cell_measurement_theta_min      2.73
_cell_volume                     3100.3(2)
_computing_cell_refinement       'Bruker SAINT v7.60A'
_computing_data_collection       'Bruker APEX-II v2009-7'
_computing_data_reduction        'Bruker SAINT v7.60A'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II'
_diffrn_measurement_method       'combination of \w and \f-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  0.0352
_diffrn_reflns_av_sigmaI/netI    0.0259
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            49464
_diffrn_reflns_theta_full        28.34
_diffrn_reflns_theta_max         28.34
_diffrn_reflns_theta_min         1.64
_exptl_absorpt_coefficient_mu    2.112
_exptl_absorpt_correction_T_max  0.9629
_exptl_absorpt_correction_T_min  0.7830
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS, Sheldrick, 2008'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.664
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1552
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.934
_refine_diff_density_min         -0.565
_refine_diff_density_rms         0.099
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.023(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.156
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     353
_refine_ls_number_reflns         7708
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.156
_refine_ls_R_factor_all          0.0314
_refine_ls_R_factor_gt           0.0293
_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^)+(0.0180P)^2^+7.3243P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0678
_refine_ls_wR_factor_ref         0.0685
_reflns_number_gt                7399
_reflns_number_total             7708
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            nchem.1074-s2.cif
_cod_data_source_block           su023
_cod_database_code               1507955