Tremorgenic Indole Alkaloids. The Total Synthesis of (-)-Penitrem D
Amos B. Smith; Naoki Kanoh; Haruaki Ishiyama; Noriaki Minakawa; Jon D. Rainier; Richard A. Hartz; Young Shin Cho; Haifeng Cui; William H. Moser; Journal of the American Chemical Society 125 (2003) 8228–8237; doi:10.1021/ja034842k

data_4113879
_publ_contact_author_address
;
Department of Chemistry
University of Pennsylvania
3301 Spruce St.
Philadelphia, PA 19104
USA
;
_publ_contact_author_email       smithab@sas.upenn.edu
_publ_contact_author_name
;
Dr. Amos B. Smith III
;
_publ_contact_author_phone       1-215-898-4860
_publ_section_title
;
 Tremorgenic Indole Alkaloids. The Total Synthesis of (-)-Penitrem D
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8228
_journal_page_last               8237
_journal_paper_doi               10.1021/ja034842k
_journal_volume                  125
_journal_year                    2003
_chemical_formula_sum            'C31 H36 Br N O3'
_chemical_formula_weight         550.52
_chemical_melting_point          454(2)
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 91.08(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.769(4)
_cell_length_b                   16.206(7)
_cell_length_c                   14.050(5)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      12.3
_cell_measurement_theta_min      4.5
_cell_volume                     2679.3(18)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare, 1999)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Enraf-Nonius CAD4'
_diffrn_measurement_method       '\w-2\q scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0740
_diffrn_reflns_av_sigmaI/netI    0.1474
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            3682
_diffrn_reflns_theta_full        22.47
_diffrn_reflns_theta_max         22.47
_diffrn_reflns_theta_min         2.14
_diffrn_standards_decay_%        0.2
_diffrn_standards_interval_time  67
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.567
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.365
_exptl_crystal_description       prism
_exptl_crystal_F_000             1152
_exptl_crystal_preparation       dichloromethane/hexanes
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.408
_refine_diff_density_min         -0.417
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.948
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         3486
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.948
_refine_ls_R_factor_all          0.1668
_refine_ls_R_factor_gt           0.0536
_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^)+(0.0639P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1101
_refine_ls_wR_factor_ref         0.1448
_reflns_number_gt                1798
_reflns_number_total             3486
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja034842ksi20030224_044947_2.cif
_cod_data_source_block           Cmpd23
_cod_original_sg_symbol_H-M      'P 21/n '
_cod_database_code               4113879