Total syntheses of murrayamine E, I, and K.
Schuster, Christian; Julich-Gruner, Konstanze K; Schnitzler, Heinrich; Hesse, Ronny; Jäger, Anne; Schmidt, Arndt W.; Knölker, Hans-Joachim; The Journal of organic chemistry 80 (2015) 5666–5673; doi:10.1021/acs.joc.5b00630

data_4036214
_publ_section_title
;
 Total syntheses of murrayamine E, I, and K.
;
_journal_issue                   11
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              5666
_journal_page_last               5673
_journal_paper_doi               10.1021/acs.joc.5b00630
_journal_volume                  80
_journal_year                    2015
_chemical_compound_source        synthesis
_chemical_formula_moiety         'C23 H25 N O2'
_chemical_formula_sum            'C23 H25 N O2'
_chemical_formula_weight         347.44
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 107.92(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.845(3)
_cell_length_b                   11.246(2)
_cell_length_c                   15.472(3)
_cell_measurement_reflns_used    999
_cell_measurement_temperature    198(2)
_cell_measurement_theta_max      22.285
_cell_measurement_theta_min      4.053
_cell_volume                     1795.5(7)
_computing_cell_refinement       'Dirax/lsq (Duisenberg, 1992)'
_computing_data_collection       'Collect (Nonius BV, 1999)'
_computing_data_reduction        'EvalCCD (Duisenberg et al., 2003)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material
'WinGX (Farrugia 1999), enCIFer (Allen et al. 2004)'
_computing_structure_refinement
'SHELXL-97 (Sheldrick, 1997), WinGX (Farrugia 1999), PLATON (Spek 2005)'
_computing_structure_solution    'SIR2004 (Burla et al., 2005)'
_diffrn_ambient_temperature      198(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       \f
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0551
_diffrn_reflns_av_sigmaI/netI    0.0327
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            44140
_diffrn_reflns_theta_full        25.40
_diffrn_reflns_theta_max         25.40
_diffrn_reflns_theta_min         3.28
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.9927
_exptl_absorpt_correction_T_min  0.8861
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS version 2.10 (Sheldrick,Bruker AXS Inc.,2002)'
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.190
_refine_diff_density_min         -0.321
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         3298
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0913
_refine_ls_R_factor_gt           0.0490
_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^)+(0.0415P)^2^+1.4780P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1010
_refine_ls_wR_factor_ref         0.1227
_reflns_number_gt                2260
_reflns_number_total             3298
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo5b00630_si_002.cif
_cod_data_source_block           an303
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4036214