Aspergillines A-E, Highly Oxygenated Hexacyclic Indole-Tetrahydrofuran-Tetramic Acid Derivatives from Aspergillus versicolor.
Zhou, Min; Miao, Ming-Ming; Du, Gang; Li, Xiao-Nian; Shang, Shan-Zhai; Zhao, Wei; Liu, Zhi-Hua; Yang, Guang-Yu; Che, Chun-Tao; Hu, Qiu-Fen; Gao, Xue-Mei; Organic letters 16 (2014) 5016–5019; doi:10.1021/ol502307u

data_1517924
_publ_section_title
;
 Aspergillines A-E, Highly Oxygenated Hexacyclic
 Indole-Tetrahydrofuran-Tetramic Acid Derivatives from Aspergillus
 versicolor.
;
_journal_issue                   19
_journal_name_full               'Organic letters'
_journal_page_first              5016
_journal_page_last               5019
_journal_paper_doi               10.1021/ol502307u
_journal_volume                  16
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C21 H24 N2 O7'
_chemical_formula_sum            'C21 H24 N2 O7'
_chemical_formula_weight         416.42
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 97.9560(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.1206(2)
_cell_length_b                   14.3568(4)
_cell_length_c                   10.8114(3)
_cell_measurement_reflns_used    9690
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      69.01
_cell_measurement_theta_min      3.08
_cell_volume                     940.88(5)
_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      100(2)
_diffrn_measured_fraction_theta_full 0.945
_diffrn_measured_fraction_theta_max 0.945
_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           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0381
_diffrn_reflns_av_sigmaI/netI    0.0420
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8628
_diffrn_reflns_theta_full        69.04
_diffrn_reflns_theta_max         69.04
_diffrn_reflns_theta_min         4.13
_exptl_absorpt_coefficient_mu    0.931
_exptl_absorpt_correction_T_max  0.5873
_exptl_absorpt_correction_T_min  0.4881
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.470
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             440
_exptl_crystal_size_max          0.90
_exptl_crystal_size_mid          0.70
_exptl_crystal_size_min          0.64
_refine_diff_density_max         0.314
_refine_diff_density_min         -0.286
_refine_diff_density_rms         0.078
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.03(17)
_refine_ls_extinction_coef       0.041(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.105
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     280
_refine_ls_number_reflns         3028
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.105
_refine_ls_R_factor_all          0.0376
_refine_ls_R_factor_gt           0.0376
_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^)+(0.0749P)^2^+0.3212P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1112
_refine_ls_wR_factor_ref         0.1112
_reflns_number_gt                3025
_reflns_number_total             3028
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol502307u_si_003.cif
_cod_data_source_block           cu_lyq1_0m
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/saulius/struct/COD-crude-data--automatic-downloads/current/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 2827 2014-09-09 07:05:25Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               1517924