Melohenines A and B, two unprecedented alkaloids from Melodinus henryi
Feng, Tao; Cai, Xiang-Hai; Li, Yan; Wang, Yuan-Yuan; Liu, Ya-Ping; Xie, Ming-Jin; Luo, Xiao-Dong; Organic Letters 11 (2009) 4834–4837; doi:10.1021/ol9018826

data_1504183
_publ_section_title
;
 Melohenines A and B, two unprecedented alkaloids from Melodinus henryi
;
_journal_coden_ASTM              ORLEF7
_journal_issue                   21
_journal_name_full               'Organic Letters'
_journal_page_first              4834
_journal_page_last               4837
_journal_paper_doi               10.1021/ol9018826
_journal_volume                  11
_journal_year                    2009
_chemical_absolute_configuration rm
_chemical_formula_sum            'C19 H24 N2 O3'
_chemical_formula_weight         328.40
_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                   7.9717(12)
_cell_length_b                   12.2181(18)
_cell_length_c                   17.265(3)
_cell_measurement_reflns_used    1735
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      20.91
_cell_measurement_theta_min      2.36
_cell_volume                     1681.6(5)
_computing_cell_refinement       'Bruker apex II'
_computing_data_collection       'Bruker apex II'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.957
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0449
_diffrn_reflns_av_sigmaI/netI    0.0636
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            11041
_diffrn_reflns_theta_full        28.65
_diffrn_reflns_theta_max         28.65
_diffrn_reflns_theta_min         2.04
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.9930
_exptl_absorpt_correction_T_min  0.9792
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.297
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             704
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.179
_refine_diff_density_min         -0.149
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'None, Friedel Pairs merged'
_refine_ls_abs_structure_Flack   -0.3(19)
_refine_ls_extinction_coef       0.015(3)
_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   0.750
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     220
_refine_ls_number_reflns         4041
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.750
_refine_ls_R_factor_all          0.0900
_refine_ls_R_factor_gt           0.0489
_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^)+(0.1000P)^2^+0.7566P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1207
_refine_ls_wR_factor_ref         0.1529
_reflns_number_gt                2595
_reflns_number_total             4041
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol9018826_si_003.cif
_cod_data_source_block           090303a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

 Updated bibliographic information.

 Antanas Vaitkus,
 2019-09-22
;
_cod_original_cell_volume        1681.6(4)
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1504183