γ- and δ-Lactams from the Leaves of Clausena lansium.
Shen, De-Yang; Nguyen, Thi Ngan; Wu, Shwu-Jen; Shiao, Young-Ji; Hung, Hsin-Yi; Kuo, Ping-Chung; Kuo, Daih-Huang; Thang, Tran Dinh; Wu, Tian-Shung; Journal of natural products 78 (2015) 2521–2530; doi:10.1021/acs.jnatprod.5b00148

data_1540475
_publ_section_title
;
 \g- and \d-Lactams from the Leaves of Clausena lansium.
;
_journal_issue                   11
_journal_name_full               'Journal of natural products'
_journal_page_first              2521
_journal_page_last               2530
_journal_paper_doi               10.1021/acs.jnatprod.5b00148
_journal_volume                  78
_journal_year                    2015
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C18 H19 N O3'
_chemical_formula_sum            'C18 H19 N O3'
_chemical_formula_weight         297.34
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_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                   6.1323(3)
_cell_length_b                   7.4365(4)
_cell_length_c                   33.4178(17)
_cell_measurement_temperature    296(2)
_cell_volume                     1523.95(14)
_computing_cell_refinement       'SAINT V7.34A (Bruker AXS, 2006)'
_computing_data_collection       'APEX2 (Bruker AXS, 2010)'
_computing_data_reduction        'SAINT V7.34A (Bruker AXS, 2006)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  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 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0442
_diffrn_reflns_av_sigmaI/netI    0.0276
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -3
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            15716
_diffrn_reflns_theta_full        67.14
_diffrn_reflns_theta_max         67.14
_diffrn_reflns_theta_min         2.64
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.713
_exptl_absorpt_correction_T_max  0.9452
_exptl_absorpt_correction_T_min  0.7492
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2012/1 (Bruker AXS Inc.)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             632
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.238
_refine_diff_density_min         -0.156
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.1(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         2727
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0441
_refine_ls_R_factor_gt           0.0403
_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^)+(0.0654P)^2^+0.2368P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1114
_refine_ls_wR_factor_ref         0.1150
_reflns_number_gt                2517
_reflns_number_total             2727
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            13.cif
_cod_data_source_block           624413c
_cod_depositor_comments
'Adding full bibliography for 1540475--1540484.cif.'
_cod_database_code               1540475