Notolutesins A-J, Dolabrane-Type Diterpenoids from the Chinese Liverwort Notoscyphus lutescens.
Wang, Song; Li, Rui-Juan; Zhu, Rong-Xiu; Hu, Xiao-Yan; Guo, Yan-Xia; Zhou, Jin-Chuan; Lin, Zhao-Min; Zhang, Jiao-Zhen; Wu, Jing-Yi; Kang, Ya-Qi; Morris-Natschke, Susan L; Lee, Kuo-Hsiung; Yuan, Hui-Qing; Lou, Hong-Xiang; Journal of natural products 77 (2014) 2081–2087; doi:10.1021/np5004559

data_1517898
_publ_section_title
;
 Notolutesins A-J, Dolabrane-Type Diterpenoids from the Chinese Liverwort
 Notoscyphus lutescens.
;
_journal_issue                   9
_journal_name_full               'Journal of natural products'
_journal_page_first              2081
_journal_page_last               2087
_journal_paper_doi               10.1021/np5004559
_journal_volume                  77
_journal_year                    2014
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C20 H28 O3'
_chemical_formula_sum            'C20 H28 O3'
_chemical_formula_weight         316.42
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.2545(4)
_cell_length_b                   8.1557(6)
_cell_length_c                   34.847(2)
_cell_measurement_reflns_used    7088
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.33
_cell_measurement_theta_min      2.34
_cell_volume                     1777.5(2)
_computing_cell_refinement       'APEX2 Software Suite (Bruker,2009)'
_computing_data_collection       'APEX2 Software Suite (Bruker,2009)'
_computing_data_reduction        'APEX2 Software Suite (Bruker,2009)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  'WINGX (Farrugia,1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare,1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX2 CCD area-detector diffractometer'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0285
_diffrn_reflns_av_sigmaI/netI    0.0200
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       45
_diffrn_reflns_limit_l_min       -45
_diffrn_reflns_number            20937
_diffrn_reflns_theta_full        27.63
_diffrn_reflns_theta_max         27.63
_diffrn_reflns_theta_min         2.34
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.9900
_exptl_absorpt_correction_T_min  0.9637
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'APEX2 Software Suite (Bruker,2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.182
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             688
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.42
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.310
_refine_diff_density_min         -0.305
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     211
_refine_ls_number_reflns         4122
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0553
_refine_ls_R_factor_gt           0.0472
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1045P)^2^+0.1196P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1409
_refine_ls_wR_factor_ref         0.1496
_reflns_number_gt                3572
_reflns_number_total             4122
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            np5004559_si_001.cif
_cod_data_source_block           yxy_wangsong01
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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      'P2(1)2(1)2(1) '
_cod_database_code               1517898