Myritonines A-C, Alkaloids from Myrioneuron tonkinensis Based on a Novel Hexacyclic Skeleton.
Li, Xiao-Hui; Zhang, Yu; Zhang, Jia-Hui; Li, Xiao-Nian; Cao, Ming-Ming; Di, Ying-Tong; Peng, Zong-Gen; Jiang, Jian-Dong; Hao, Xiao-Jiang; Journal of natural products 79 (2016) 1203–1207; doi:10.1021/acs.jnatprod.5b01130

data_1542763
_publ_section_title
;
 Myritonines A-C, Alkaloids from Myrioneuron tonkinensis Based on a Novel
 Hexacyclic Skeleton.
;
_journal_issue                   4
_journal_name_full               'Journal of natural products'
_journal_page_first              1203
_journal_page_last               1207
_journal_paper_doi               10.1021/acs.jnatprod.5b01130
_journal_volume                  79
_journal_year                    2016
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C20 H33 N3'
_chemical_formula_sum            'C20 H33 N3'
_chemical_formula_weight         315.49
_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                   5.4602(4)
_cell_length_b                   17.7085(15)
_cell_length_c                   18.1951(15)
_cell_measurement_reflns_used    1940
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      49.95
_cell_measurement_theta_min      3.48
_cell_volume                     1759.3(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.949
_diffrn_measured_fraction_theta_max 0.949
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.2608
_diffrn_reflns_av_sigmaI/netI    0.1825
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            17349
_diffrn_reflns_theta_full        70.28
_diffrn_reflns_theta_max         70.27
_diffrn_reflns_theta_min         3.48
_exptl_absorpt_coefficient_mu    0.532
_exptl_absorpt_correction_T_max  0.9790
_exptl_absorpt_correction_T_min  0.7040
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.191
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.71
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.383
_refine_diff_density_min         -0.295
_refine_diff_density_rms         0.087
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -3.1(15)
_refine_ls_extinction_coef       0.013(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   0.880
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         3128
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.880
_refine_ls_R_factor_all          0.2544
_refine_ls_R_factor_gt           0.1025
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1918P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2314
_refine_ls_wR_factor_ref         0.3373
_reflns_number_gt                1102
_reflns_number_total             3128
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            np5b01130_si_003.cif
_cod_data_source_block           cu_hmt13a_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 1542762--1542763.cif.
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_cod_database_code               1542763