Total syntheses of (±)-β-erythroidine and (±)-8-oxo-β-erythroidine by an intramolecular Diels-Alder cycloaddition of a 2-amidoacrolein
He, Yong; Funk, Raymond L.; Organic Letters 8 (2006) 3689–3692; doi:10.1021/ol061267r

data_1516756
_publ_section_title
;
 Total syntheses of (+-)-\b-erythroidine and (+-)-8-oxo-\b-erythroidine by
 an intramolecular Diels-Alder cycloaddition of a 2-amidoacrolein
;
_journal_coden_ASTM              ORLEF7
_journal_issue                   17
_journal_name_full               'Organic Letters'
_journal_page_first              3689
_journal_page_last               3692
_journal_paper_doi               10.1021/ol061267r
_journal_volume                  8
_journal_year                    2006
_chemical_formula_sum            'C17 H19 N O6'
_chemical_formula_weight         333.33
_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                 97.598(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   14.765(6)
_cell_length_b                   22.301(8)
_cell_length_c                   9.509(4)
_cell_measurement_reflns_used    4154
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      22.996
_cell_measurement_theta_min      2.295
_cell_volume                     3104(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.808
_diffrn_measured_fraction_theta_max 0.808
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0620
_diffrn_reflns_av_sigmaI/netI    0.1571
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            14762
_diffrn_reflns_theta_full        28.21
_diffrn_reflns_theta_max         28.21
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    0.109
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.427
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       brick
_exptl_crystal_F_000             1408
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.183
_refine_diff_density_min         -0.242
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.716
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         6187
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.716
_refine_ls_R_factor_all          0.1204
_refine_ls_R_factor_gt           0.0601
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0129P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1135
_refine_ls_wR_factor_ref         0.1257
_reflns_number_gt                2534
_reflns_number_total             6187
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             1506117
_cod_data_source_file            ol061267rsi20060524_063608.cif
_cod_data_source_block           yxh8m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Updated bibliographic information.

 Antanas Vaitkus,
 2019-09-20

 Marked entry as a duplicate of entry 1506117.

 Antanas Vaitkus,
 2019-09-20
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1516756