Asperolides A-C, Tetranorlabdane Diterpenoids from the Marine Alga-Derived Endophytic Fungus Aspergillus wentii EN-48.
Sun, Hao-Fen; Li, Xiao-Ming; Meng, Li; Cui, Chuan-Ming; Gao, Shu-Shan; Li, Chun-Shun; Huang, Cai-Guo; Wang, Bin-Gui; Journal of natural products 75 (2012) 148–152; doi:10.1021/np2006742

data_1503464
_publ_section_title
;
 Asperolides A-C, Tetranorlabdane Diterpenoids from the Marine
 Alga-Derived Endophytic Fungus Aspergillus wentii EN-48.
;
_journal_issue                   2
_journal_name_full               'Journal of natural products'
_journal_page_first              148
_journal_page_last               152
_journal_paper_doi               10.1021/np2006742
_journal_volume                  75
_journal_year                    2012
_chemical_formula_sum            'C16 H16 O5'
_chemical_formula_weight         288.29
_chemical_melting_point          263.5(5)
_chemical_name_common            'Asperolide A'
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 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                 132.34(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.48(4)
_cell_length_b                   7.990(18)
_cell_length_c                   12.93(3)
_cell_measurement_reflns_used    1598
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.3756
_cell_measurement_theta_min      2.1302
_cell_volume                     1335(5)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Scxmini CCD'
_diffrn_measurement_method       CCD_Profile_fitting
_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  0.0941
_diffrn_reflns_av_sigmaI/netI    0.1099
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            5230
_diffrn_reflns_theta_full        27.39
_diffrn_reflns_theta_max         27.39
_diffrn_reflns_theta_min         2.33
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.107
_exptl_absorpt_correction_T_max  0.979
_exptl_absorpt_correction_T_min  0.979
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.434
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.2000
_exptl_crystal_size_mid          0.2000
_exptl_crystal_size_min          0.2000
_refine_diff_density_max         0.398
_refine_diff_density_min         -0.325
_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   1(3)
_refine_ls_extinction_coef       0.055(10)
_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   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         2868
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.1361
_refine_ls_R_factor_gt           0.0922
_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^)+(0.1520P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2362
_refine_ls_wR_factor_ref         0.2889
_reflns_number_gt                1639
_reflns_number_total             2868
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            np2006742_si_002.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '263-264' was changed to '263.5(5)' -
the average value was taken and precision was
estimated.

'_symmetry_cell_setting' value 'Monoclinic' changed to
'monoclinic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      C2
_cod_database_code               1503464