Total Synthesis of the Norhasubanan Alkaloid Stephadiamine.
Hartrampf, Nina; Winter, Nils; Pupo, Gabriele; Stoltz, Brian M.; Trauner, Dirk; Journal of the American Chemical Society 140 (2018) 8675–8680; doi:10.1021/jacs.8b01918

data_4132156
_publ_section_title
;
 Total Synthesis of the Norhasubanan Alkaloid Stephadiamine.
;
_journal_issue                   28
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8675
_journal_page_last               8680
_journal_paper_doi               10.1021/jacs.8b01918
_journal_volume                  140
_journal_year                    2018
_chemical_formula_moiety         'C19 H22 O6'
_chemical_formula_sum            'C19 H22 O6'
_chemical_formula_weight         346.36
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_block_code                C19H22O6_rv320_trauner
_audit_creation_method           SHELXL-2014
_audit_update_record             13-Feb-18
_cell_angle_alpha                90
_cell_angle_beta                 94.6825(16)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.9536(5)
_cell_length_b                   13.8303(7)
_cell_length_c                   13.3248(6)
_cell_measurement_reflns_used    121
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      30.3637
_cell_measurement_theta_min      3.6566
_cell_volume                     1644.52(14)
_computing_cell_refinement       'APEX2 v2012.4-3 (Bruker AXS)'
_computing_data_collection       'APEX3 v2016.5-0, Bruker AXS (2016)'
_computing_data_reduction        'SAINT V8.18C (Bruker AXS Inc., 2011)'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution
;
A. Altomare, M. C. Burla, M. Camalli, G. L. Cascarano, C. Giacovazzo, A.
Guagliardi, A. G. G. Moliterni, G. Polidori, R. Spagna: SIR97: a new tool for
crystal structure determination and refinement; J. Appl. Crystallogr. 1999,
32, 115-119.
;
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 10.4167
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device       'fixed-chi three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Venture TXS'
_diffrn_measurement_method       'mix of phi and omega scans'
_diffrn_radiation_collimation    'focusing mirrors'
_diffrn_radiation_monochromator  'focusing mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0386
_diffrn_reflns_av_unetI/netI     0.0186
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            32974
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.240
_diffrn_reflns_theta_max         26.42
_diffrn_reflns_theta_min         3.210
_diffrn_source                   'rotating anode (TXS)'
_diffrn_source_current           50
_diffrn_source_power             2.5
_diffrn_source_type              'Bruker TXS'
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    0.104
_exptl_absorpt_correction_T_max  0.9585
_exptl_absorpt_correction_T_min  0.9257
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2012/1 (Bruker AXS Inc.)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.399
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.182
_exptl_crystal_size_mid          0.095
_exptl_crystal_size_min          0.054
_refine_diff_density_max         0.323
_refine_diff_density_min         -0.212
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         3350
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0490
_refine_ls_R_factor_gt           0.0378
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0414P)^2^+0.9448P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0915
_refine_ls_wR_factor_ref         0.0984
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2795
_reflns_number_total             3350
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b01918_si_002.cif
_cod_data_source_block           rv320
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4132156
_shelxl_version_number           2014-3
_shelx_res_checksum              44454
_shelx_hkl_checksum              60593