Total Synthesis of (\±)-Maistemonine, (\±)-Stemonamide, and (\±)-Isomaistemonine
Zhi-Hua Chen; Zhi-Min Chen; Yong-Qiang Zhang; Yong-Qiang Tu; Fu-Min Zhang; Journal of Organic Chemistry 76 (2011) 10173–10186; doi:10.1021/jo202042x

data_4026804
_publ_section_title
;
 Total Synthesis of (\+-)-Maistemonine, (\+-)-Stemonamide, and
 (\+-)-Isomaistemonine
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              10173
_journal_page_last               10186
_journal_paper_doi               10.1021/jo202042x
_journal_volume                  76
_journal_year                    2011
_chemical_formula_sum            'C16 H23 N O2'
_chemical_formula_weight         261.35
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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                 114.350(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.247(7)
_cell_length_b                   9.209(5)
_cell_length_c                   13.959(8)
_cell_measurement_reflns_used    930
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.62
_cell_measurement_theta_min      2.73
_cell_volume                     1434.3(14)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0636
_diffrn_reflns_av_sigmaI/netI    0.0725
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5839
_diffrn_reflns_theta_full        23.71
_diffrn_reflns_theta_max         23.71
_diffrn_reflns_theta_min         2.73
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.9875
_exptl_absorpt_correction_T_min  0.9821
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.210
_exptl_crystal_description       block
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.148
_refine_diff_density_min         -0.145
_refine_diff_density_rms         0.032
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.982
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         2108
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.982
_refine_ls_R_factor_all          0.1086
_refine_ls_R_factor_gt           0.0557
_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^)+(0.0534P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1061
_refine_ls_wR_factor_ref         0.1260
_reflns_number_gt                1196
_reflns_number_total             2108
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo202042x_si_003.cif
_cod_data_source_block           p21c
_cod_database_code               4026804