BACE1 Inhibitory Meroterpenoids from Aspergillus terreus.
Qi, Changxing; Liu, Mengting; Zhou, Qun; Gao, Weixi; Chen, Chunmei; Lai, Yongji; Hu, Zhengxi; Xue, Yongbo; Zhang, Jinwen; Li, Dongyan; Li, Xiao-Nian; Zhang, Qing; Wang, Jianping; Zhu, Hucheng; Zhang, Yonghui; Journal of natural products 81 (2018) 1937–1945; doi:10.1021/acs.jnatprod.7b01050

data_1553348
_publ_section_title
;
 BACE1 Inhibitory Meroterpenoids from Aspergillus terreus.
;
_journal_issue                   9
_journal_name_full               'Journal of natural products'
_journal_page_first              1937
_journal_page_last               1945
_journal_paper_doi               10.1021/acs.jnatprod.7b01050
_journal_volume                  81
_journal_year                    2018
_chemical_formula_sum            'C26 H34 O8'
_chemical_formula_weight         474.53
_space_group_IT_number           1
_space_group_name_Hall           'P 1'
_space_group_name_H-M_alt        'P 1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                103.4790(10)
_cell_angle_beta                 90.0680(10)
_cell_angle_gamma                105.9100(10)
_cell_formula_units_Z            1
_cell_length_a                   6.5706(2)
_cell_length_b                   7.0972(2)
_cell_length_c                   13.8873(5)
_cell_measurement_reflns_used    9234
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      67.74
_cell_measurement_theta_min      3.28
_cell_volume                     604.17(3)
_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      298(2)
_diffrn_measured_fraction_theta_full 0.949
_diffrn_measured_fraction_theta_max 0.949
_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  0.0331
_diffrn_reflns_av_sigmaI/netI    0.0403
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            11512
_diffrn_reflns_theta_full        64.99
_diffrn_reflns_theta_max         64.99
_diffrn_reflns_theta_min         3.28
_exptl_absorpt_coefficient_mu    0.793
_exptl_absorpt_correction_T_max  0.9249
_exptl_absorpt_correction_T_min  0.9108
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.304
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             254
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.254
_refine_diff_density_min         -0.246
_refine_diff_density_rms         0.066
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.10(18)
_refine_ls_extinction_coef       0.0286(19)
_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   1.148
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     318
_refine_ls_number_reflns         3689
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.147
_refine_ls_R_factor_all          0.0458
_refine_ls_R_factor_gt           0.0322
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0462P)^2^+0.1082P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0826
_refine_ls_wR_factor_ref         0.0994
_reflns_number_gt                3444
_reflns_number_total             3689
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            np7b01050_si_004.cif
_cod_data_source_block           cu_150505g_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' 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      P1
_cod_database_code               1553348