1-Benzyl-5-methoxy-2',3-dimethyl-4,6-dioxa-2-azaspiro[bicyclo[3.2.0]hept-2-ene-7,4'-isoquinoline]-1',3'(2'<i>H</i>,4'<i>H</i>)-dione
Fun, Hoong-Kun; Quah, Ching Kheng; Huang, Chengmei; Yu, Haitao; Acta Crystallographica Section E 67 (2011) o1311–o1312; doi:10.1107/S160053681101600X

data_2230413
_publ_section_title
;
 1-Benzyl-5-methoxy-2',3-dimethyl-4,6-dioxa-2-azaspiro[bicyclo[3.2.0]hept-2-ene-7,4'-isoquinoline]-1',3'(2'<i>H</i>,4'<i>H</i>)-dione
;
_journal_coeditor_code           LH5240
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1311
_journal_page_last               o1312
_journal_paper_doi               10.1107/S160053681101600X
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C22 H20 N2 O5'
_chemical_formula_moiety         'C22 H20 N2 O5'
_chemical_formula_sum            'C22 H20 N2 O5'
_chemical_formula_weight         392.40
_chemical_name_systematic
;
1-Benzyl-5-methoxy-2',3-dimethyl-4,6-dioxa-2-azaspiro[bicyclo[3.2.0]hept-
2-ene-7,4'-isoquinoline]-1',3'(2'<i>H</i>,4'<i>H</i>)-dione
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 108.8840(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.7261(2)
_cell_length_b                   12.4444(2)
_cell_length_c                   15.8413(3)
_cell_measurement_reflns_used    9898
_cell_measurement_temperature    100
_cell_measurement_theta_max      30.18
_cell_measurement_theta_min      2.72
_cell_volume                     1814.16(6)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2009)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
'SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type
;
Bruker SMART APEXII CCD area-detector
;
_diffrn_measurement_method       '\f and \w'
_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  0.0189
_diffrn_reflns_av_sigmaI/netI    0.0165
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            21150
_diffrn_reflns_theta_full        30.18
_diffrn_reflns_theta_max         30.18
_diffrn_reflns_theta_min         2.13
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_T_max  0.9745
_exptl_absorpt_correction_T_min  0.9306
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(<i>SADABS</i>; Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.437
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.71
_exptl_crystal_size_mid          0.44
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.507
_refine_diff_density_min         -0.271
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     265
_refine_ls_number_reflns         5368
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.0404
_refine_ls_R_factor_gt           0.0370
_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^)+(0.0545P)^2^+0.7208P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0973
_refine_ls_wR_factor_ref         0.1003
_reflns_number_gt                4883
_reflns_number_total             5368
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh5240.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2230413
_cod_database_fobs_code          2230413