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_4026809
_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            'C23 H29 N O6'
_chemical_formula_weight         415.47
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                105.682(8)
_cell_angle_beta                 95.718(9)
_cell_angle_gamma                110.662(7)
_cell_formula_units_Z            2
_cell_length_a                   8.632(7)
_cell_length_b                   11.038(9)
_cell_length_c                   12.753(11)
_cell_measurement_reflns_used    969
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      20.70
_cell_measurement_theta_min      2.58
_cell_volume                     1068.7(15)
_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 0.976
_diffrn_measured_fraction_theta_max 0.976
_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  0.0339
_diffrn_reflns_av_sigmaI/netI    0.0777
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            6039
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.58
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  0.9807
_exptl_absorpt_correction_T_min  0.9771
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.291
_exptl_crystal_description       block
_exptl_crystal_F_000             444
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.249
_refine_diff_density_min         -0.288
_refine_diff_density_rms         0.059
_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     275
_refine_ls_number_reflns         3894
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.1294
_refine_ls_R_factor_gt           0.0785
_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^)+(0.1213P)^2^+0.6555P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2434
_refine_ls_wR_factor_ref         0.2693
_reflns_number_gt                2132
_reflns_number_total             3894
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo202042x_si_008.cif
_cod_data_source_block           p-1
_cod_original_cell_volume        1068.6(15)
_cod_database_code               4026809