New Iboga-Type Alkaloids from Ervatamia hainanensis
Liu, Zhi-Wen; Huang, Xiao-Jun; Xiao, Han-Lin; Liu, Guo; Zhang, Jian; Shi, Lei; Jiang, Renwang; Zhang, Xiao-Qi; Ye, Wen-Cai; RSC Adv.  (2016) –; doi:10.1039/C6RA00185H

data_7224467
_publ_section_title
;
 New Iboga-Type Alkaloids from Ervatamia hainanensis
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA00185H
_journal_year                    2016
_chemical_absolute_configuration rm
_chemical_formula_sum            'C21 H24 N2 O4'
_chemical_formula_weight         368.42
_chemical_name_systematic        '3-oxo-7S-coronaridine hydroxyindolenine'
_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   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2016-01-02 deposited with the CCDC.
2016-02-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.78022(19)
_cell_length_b                   13.8217(4)
_cell_length_c                   15.0748(4)
_cell_measurement_reflns_used    7321
_cell_measurement_temperature    173.00(10)
_cell_measurement_theta_max      62.9440
_cell_measurement_theta_min      4.3330
_cell_volume                     1829.44(8)
_computing_cell_refinement       'CrysAlis PRO '
_computing_data_collection       'CrysAlis PRO '
_computing_data_reduction        'CrysAlis PRO '
_computing_molecular_graphics    'XP in SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      173.00(10)
_diffrn_detector_area_resol_mean 16.0288
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Agilent Gemini S ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0450
_diffrn_reflns_av_unetI/netI     0.0264
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            14636
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        62.832
_diffrn_reflns_theta_max         62.832
_diffrn_reflns_theta_min         4.340
_diffrn_source                   'sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.758
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.65683
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2004)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.338
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.131
_refine_diff_density_min         -0.154
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details
;
 Flack x determined using 1160 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.13(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         2930
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0305
_refine_ls_R_factor_gt           0.0289
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0388P)^2^+0.2168P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0703
_refine_ls_wR_factor_ref         0.0717
_reflns_Friedel_coverage         0.729
_reflns_Friedel_fraction_full    0.997
_reflns_Friedel_fraction_max     0.996
_reflns_number_gt                2827
_reflns_number_total             2930
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ra00185h2.cif
_cod_data_source_block           lzw42
_cod_original_cell_volume        1829.43(8)
_cod_database_code               7224467
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              93275