Unified Total Synthesis of Pyrroloazocine Indole Alkaloids Sheds Light on Their Biosynthetic Relationship.
Miloserdov, Fedor M.; Kirillova, Mariia S.; Muratore, Michael E.; Echavarren, Antonio M.; Journal of the American Chemical Society 140 (2018) 5393–5400; doi:10.1021/jacs.7b13484

data_4131943
_publ_section_title
;
 Unified Total Synthesis of Pyrroloazocine Indole Alkaloids Sheds Light on
 Their Biosynthetic Relationship.
;
_journal_issue                   16
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5393
_journal_page_last               5400
_journal_paper_doi               10.1021/jacs.7b13484
_journal_volume                  140
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H20 N2 O4'
_chemical_formula_weight         352.38
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.64769(5)
_cell_length_b                   11.43518(7)
_cell_length_c                   15.03401(9)
_cell_measurement_reflns_used    163294
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      70.147
_cell_measurement_theta_min      2.508
_cell_volume                     1658.598(17)
_computing_cell_refinement       'CrysAlisPro 1.171.39.12b (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.39.12b (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.39.12b (Rigaku OD, 2015)'
_computing_molecular_graphics
;
 SHELXle: C.B. Huebschle, G.M. Sheldrick & B. Dittrich
 J.Appl.Cryst. (2011) 44, 1281-1284.
;
_computing_publication_material  'XCIF, SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT V2014/4 (Sheldrick 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 5.8140
_diffrn_detector_type            'PILATUS 200K'
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.922
_diffrn_measurement_device_type  '1/4chi goniometer'
_diffrn_measurement_method
;
 Fullsphere data collection, phi and omega scans
;
_diffrn_measurement_specimen_support 'magnetic support with MicroMount'
_diffrn_radiation_monochromator  'Confocal Max Flux optic'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0341
_diffrn_reflns_av_unetI/netI     0.0237
_diffrn_reflns_Laue_measured_fraction_full 0.991
_diffrn_reflns_Laue_measured_fraction_max 0.922
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            163294
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.890
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         70.147
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_diffrn_source                   'Microfocus rotating anode X-ray tube'
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_diffrn_source_type              'Rigaku MicroMax-007HF'
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.68259
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.12b (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.411
_exptl_crystal_description       block
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.482
_refine_diff_density_min         -0.295
_refine_diff_density_rms         0.058
_refine_ls_abs_structure_details
;
 Flack x determined using 11344 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.06(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         28685
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0294
_refine_ls_R_factor_gt           0.0258
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0484P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0691
_refine_ls_wR_factor_ref         0.0705
_reflns_Friedel_coverage         0.801
_reflns_Friedel_fraction_full    0.998
_reflns_Friedel_fraction_max     0.853
_reflns_number_gt                26362
_reflns_number_total             28685
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b13484_si_003.cif
_cod_data_source_block           FM-KMS691LT
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Orthorhombic' was changed
to 'orthorhombic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               4131943
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.971
_shelx_estimated_absorpt_t_max   0.985
_oxdiff_exptl_absorpt_empirical_full_min 0.669
_oxdiff_exptl_absorpt_empirical_full_max 1.473
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
- Detector area scaling
;
_shelx_res_checksum              53639
_shelx_hkl_checksum              59187