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_7224464
_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            'C23 H27 N3 O4'
_chemical_formula_weight         409.48
_chemical_name_systematic        '3-oxo-7R-coronaridine hydroxyindolenine'
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-01-02 deposited with the CCDC.
2016-02-29 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 107.6571(19)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.07340(18)
_cell_length_b                   9.87893(13)
_cell_length_c                   11.00555(18)
_cell_measurement_reflns_used    11209
_cell_measurement_temperature    173.0(2)
_cell_measurement_theta_max      62.8940
_cell_measurement_theta_min      4.4470
_cell_volume                     1043.61(3)
_computing_cell_refinement       'CrysAlis PRO '
_computing_data_collection       'CrysAlis PRO '
_computing_data_reduction        'CrysAlis PRO'
_computing_molecular_graphics    'XP (Sheldrick, 2008)'
_computing_publication_material  'XP (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Agilent Gemini S ultra'
_diffrn_measurement_method       'omega scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0226
_diffrn_reflns_av_sigmaI/netI    0.0133
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            16047
_diffrn_reflns_theta_full        62.73
_diffrn_reflns_theta_max         62.73
_diffrn_reflns_theta_min         5.22
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.732
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.65
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.303
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             436
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.139
_refine_diff_density_min         -0.107
_refine_diff_density_rms         0.025
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(13)
_refine_ls_extinction_coef       0.051(2)
_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   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     274
_refine_ls_number_reflns         3290
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0244
_refine_ls_R_factor_gt           0.0243
_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^)+(0.0368P)^2^+0.1815P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0634
_refine_ls_wR_factor_ref         0.0635
_reflns_number_gt                3274
_reflns_number_total             3290
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra00185h2.cif
_cod_data_source_block           lzwa913
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7224464