Biosynthetic Enantiodivergence in the Eburnane Alkaloids from Kopsia.
Chong, Kam-Weng; Yeap, Joanne Soon-Yee; Lim, Siew-Huah; Weber, Jean-Frédéric F; Low, Yun-Yee; Kam, Toh-Seok; Journal of natural products 80 (2017) 3014–3024; doi:10.1021/acs.jnatprod.7b00621

data_1547858
_publ_section_title
;
 Biosynthetic Enantiodivergence in the Eburnane Alkaloids from Kopsia.
;
_journal_issue                   11
_journal_name_full               'Journal of natural products'
_journal_page_first              3014
_journal_page_last               3024
_journal_paper_doi               10.1021/acs.jnatprod.7b00621
_journal_volume                  80
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C19 H22 N2 O'
_chemical_formula_sum            'C19 H22 N2 O'
_chemical_formula_weight         294.38
_chemical_melting_point          448.5(5)
_chemical_name_common            (-)-19-Hydroxyeburnamenine
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 98.5016(15)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   8.65954(13)
_cell_length_b                   7.95159(11)
_cell_length_c                   11.56157(18)
_cell_measurement_reflns_used    5391
_cell_measurement_temperature    143(1)
_cell_measurement_theta_max      73.7660
_cell_measurement_theta_min      5.5180
_cell_volume                     787.35(2)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_molecular_graphics    'X-SEED (Barbour, 2001)'
_computing_publication_material
'enCIFer (Allen, et. al., J. Applied Cryst., 37, 335-338, 2004)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      143(1)
_diffrn_detector_area_resol_mean 5.2020
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0139
_diffrn_reflns_av_unetI/netI     0.0155
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.981
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            5904
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.956
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         73.883
_diffrn_reflns_theta_min         3.866
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.603
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.57641
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.242
_exptl_crystal_description       block
_exptl_crystal_F_000             316
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.174
_refine_diff_density_min         -0.167
_refine_diff_density_rms         0.033
_refine_ls_abs_structure_details
;
 Flack x determined using 1343 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.02(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3060
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0297
_refine_ls_R_factor_gt           0.0294
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         <0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0472P)^2^+0.1227P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0773
_refine_ls_wR_factor_ref         0.0777
_reflns_Friedel_coverage         0.812
_reflns_Friedel_fraction_full    0.987
_reflns_Friedel_fraction_max     0.926
_reflns_number_gt                3030
_reflns_number_total             3060
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            np7b00621_si_008.cif
_cod_data_source_block           exp_6110
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' value '448-449 K' was changed to '448.5(5)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 1547851--1547858.cif.
;
_cod_database_code               1547858
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              3519
_shelx_hkl_checksum              43034