(1<i>S</i>*,4'<i>S</i>*,5<i>R</i>*)-1-Isopropyl-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) o1271–o1272; doi:10.1107/S1600536811015315

data_2230072
_publ_section_title
;
 (1<i>S</i>*,4'<i>S</i>*,5<i>R</i>*)-1-Isopropyl-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           LH5237
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1271
_journal_page_last               o1272
_journal_paper_doi               10.1107/S1600536811015315
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C18 H20 N2 O5'
_chemical_formula_moiety         'C18 H20 N2 O5'
_chemical_formula_sum            'C18 H20 N2 O5'
_chemical_formula_weight         344.36
_chemical_name_systematic
;
(1<i>S</i>*,4'<i>S</i>*,5<i>R</i>*)-1-Isopropyl-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                 101.6410(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5721(2)
_cell_length_b                   10.4260(2)
_cell_length_c                   15.7633(3)
_cell_measurement_reflns_used    9966
_cell_measurement_temperature    100
_cell_measurement_theta_max      32.65
_cell_measurement_theta_min      2.64
_cell_volume                     1701.77(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 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0260
_diffrn_reflns_av_sigmaI/netI    0.0260
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            23124
_diffrn_reflns_theta_full        32.70
_diffrn_reflns_theta_max         32.70
_diffrn_reflns_theta_min         1.97
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.9661
_exptl_absorpt_correction_T_min  0.9512
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(<i>SADABS</i>; Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.344
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.51
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.489
_refine_diff_density_min         -0.213
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     231
_refine_ls_number_reflns         6242
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0484
_refine_ls_R_factor_gt           0.0399
_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^)+(0.0531P)^2^+0.4865P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1026
_refine_ls_wR_factor_ref         0.1081
_reflns_number_gt                5286
_reflns_number_total             6242
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh5237.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2230072
_cod_database_fobs_code          2230072