Antiproliferative Constituents of the Roots of Ethiopian Podocarpus falcatus and Structure Revision of 2α-Hydroxynagilactone F and Nagilactone I.
Addo, Ermias Mekuria; Chai, Hee-Byung; Hymete, Ariaya; Yeshak, Mariamawit Yonathan; Slebodnick, Carla; Kingston, David G. I.; Rakotondraibe, L. Harinantenaina; Journal of natural products 78 (2015) 827–835; doi:10.1021/np501062f

data_1518893
_publ_section_title
;
 Antiproliferative Constituents of the Roots of Ethiopian Podocarpus
 falcatus and Structure Revision of 2\a-Hydroxynagilactone F and
 Nagilactone I.
;
_journal_issue                   4
_journal_name_full               'Journal of natural products'
_journal_page_first              827
_journal_page_last               835
_journal_paper_doi               10.1021/np501062f
_journal_volume                  78
_journal_year                    2015
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C20 H24 O7'
_chemical_formula_sum            'C20 H24 O7'
_chemical_formula_weight         376.39
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_date             2014-10-29
_audit_creation_method
;
Olex2 1.2
(compiled 2014.09.19 svn.r3010 for OlexSys, GUI svn.r4874)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.77930(10)
_cell_length_b                   11.77260(10)
_cell_length_c                   19.7352(3)
_cell_measurement_reflns_used    8424
_cell_measurement_temperature    100.00(10)
_cell_measurement_theta_max      74.4720
_cell_measurement_theta_min      4.3660
_cell_volume                     1807.40(4)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.34 (release 22-05-2014 CrysAlis171 .NET)
(compiled May 22 2014,16:03:01)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.34 (release 22-05-2014 CrysAlis171 .NET)
(compiled May 22 2014,16:03:01)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.34 (release 22-05-2014 CrysAlis171 .NET)
(compiled May 22 2014,16:03:01)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXT (Sheldrick, 2008)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 4.1587
_diffrn_detector_type            Onyx
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_details
;
  1 omega -126.00  -79.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      -41.9419  -99.0000  -30.0000 47

  2 omega    8.00  120.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -       41.9419   77.0000  -30.0000 112

  3 omega    2.00   98.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -       41.9419 -125.0000 -150.0000 96

  4 omega   30.00   69.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000  -30.0000 -150.0000 39

  5 omega   79.00  178.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000  111.0000    0.0000 99

  6 omega   30.00   69.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000  -30.0000  -90.0000 39

  7 omega   30.00   69.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000  -30.0000    0.0000 39

  8 omega   79.00  178.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000  111.0000   30.0000 99

  9 omega   77.00  178.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000   30.0000 -150.0000 101

 10 omega   79.00  169.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000  111.0000 -150.0000 90

 11 omega   37.00   65.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000  -30.0000  -60.0000 28

 12 omega   32.00   99.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000  -94.0000  -60.0000 67

 13 omega   75.00  141.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000   77.0000   30.0000 66

 14 omega   33.00   61.00   1.0000    1.0000
omega____ theta____ kappa____ phi______ frames
    -      107.0000  -46.0000  -16.0000 28
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Onyx, Nova'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_UB_11      -0.0107742000
_diffrn_orient_matrix_UB_12      -0.0398584000
_diffrn_orient_matrix_UB_13      -0.0742306000
_diffrn_orient_matrix_UB_21      -0.1676407000
_diffrn_orient_matrix_UB_22      -0.0642637000
_diffrn_orient_matrix_UB_23      0.0160542000
_diffrn_orient_matrix_UB_31      -0.1048384000
_diffrn_orient_matrix_UB_32      0.1067991000
_diffrn_orient_matrix_UB_33      -0.0180740000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0356
_diffrn_reflns_av_unetI/netI     0.0318
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            11384
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         74.703
_diffrn_reflns_theta_min         4.373
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_type              'Nova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.872
_exptl_absorpt_correction_T_max  0.906
_exptl_absorpt_correction_T_min  0.843
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.34 (release 22-05-2014 CrysAlis171 .NET)
(compiled May 22 2014,16:03:01)
Numerical absorption correction based on gaussian integration over
            a multifaceted crystal model
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.383
_exptl_crystal_description       rod
_exptl_crystal_F_000             800
_exptl_crystal_recrystallization_method 'Crystallized from CH3OH'
_exptl_crystal_size_max          0.2794
_exptl_crystal_size_mid          0.1872
_exptl_crystal_size_min          0.1428
_refine_diff_density_max         0.230
_refine_diff_density_min         -0.191
_refine_diff_density_rms         0.044
_refine_ls_abs_structure_details
;
 Flack x determined using 1494 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.13(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     252
_refine_ls_number_reflns         3688
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0356
_refine_ls_R_factor_gt           0.0344
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0570P)^2^+0.2950P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0920
_refine_ls_wR_factor_ref         0.0931
_reflns_Friedel_coverage         0.731
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.988
_reflns_number_gt                3564
_reflns_number_total             3688
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            np501062f_si_002.cif
_cod_data_source_block           cs2145
_cod_depositor_comments
'Adding full bibliography for 1518892--1518894.cif.'
_cod_database_code               1518893
_shelxl_version_number           2014/6
_chemical_oxdiff_formula         'C20 H24 O7'
_chemical_oxdiff_usercomment     'Yixi Liu / David Kingston (ERXR-2)'
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C4(H4), C10(H10), C13(H13), C14(H14), C17(H17)
2.b Secondary CH2 refined with riding coordinates:
 C3(H3A,H3B), C5(H5A,H5B)
2.c Aromatic/amide H refined with riding coordinates:
 C8(H8), C12(H12)
2.d Idealised Me refined as rotating group:
 C15(H15A,H15B,H15C), C16(H16A,H16B,H16C), C19(H19A,H19B,H19C), C20(H20A,H20B,
 H20C)
;
_olex2_submission_original_sample_id ERXR-2
_olex2_submission_special_instructions 'No special instructions were received'