Methyl (6<i>R</i>*,6a<i>R</i>*,12b<i>R</i>*)-2,4-dimethyl-6-(2-methylphenyl)-1,3-dioxo-2,3,4,6a,7,12b-hexahydro-1<i>H</i>,6<i>H</i>-chromeno[4',3':4,5]pyrano[2,3-<i>d</i>]pyrimidine-6a-carboxylate
Gomathi, S.; Dravida Thendral, Era; Sivakumar, G.; Sabari, V.; Usha, G.; IUCrData 2 (2017) x170812–; doi:10.1107/S2414314617008124

data_1546725
_publ_section_title
;
 Methyl
 (6<i>R</i>*,6a<i>R</i>*,12b<i>R</i>*)-2,4-dimethyl-6-(2-methylphenyl)-1,3-dioxo-2,3,4,6a,7,12b-hexahydro-1<i>H</i>,6<i>H</i>-chromeno[4',3':4,5]pyrano[2,3-<i>d</i>]pyrimidine-6a-carboxylate
;
_journal_issue                   6
_journal_name_full               IUCrData
_journal_page_first              x170812
_journal_paper_doi               10.1107/S2414314617008124
_journal_volume                  2
_journal_year                    2017
_chemical_formula_iupac          'C25 H24 N2 O6'
_chemical_formula_moiety         'C25 H24 N2 O6'
_chemical_formula_sum            'C25 H24 N2 O6'
_chemical_formula_weight         448.46
_chemical_name_systematic
'Methyl (6<i>R</i>*,6a<i>R</i>*,12b<i>R</i>*)-2,4-dimethyl-6-(2-methylphenyl)-1,3-dioxo-2,3,4,6a,7,12b-hexahydro-1<i>H</i>,6<i>H</i>-chromeno[4',3':4,5]pyrano[2,3-<i>d</i>]pyrimidine-6a-carboxylate'
_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                 91.0770(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.4087(5)
_cell_length_b                   15.5422(7)
_cell_length_c                   14.6143(7)
_cell_measurement_reflns_used    3764
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      2.16
_cell_volume                     2136.70(18)
_computing_cell_refinement
;
APEX2 and SAINT (Bruker, 2004)
;
_computing_data_collection
;
APEX2 (Bruker, 2004)
;
_computing_data_reduction
;
SAINT and XPREP (Bruker, 2004)
;
_computing_molecular_graphics
;
ORTEP-3 for Windows (Farrugia, 2012) and PLATON (Spek, 2009)
;
_computing_publication_material
;
SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009)
;
_computing_structure_refinement
;
SHELXL97 (Sheldrick, 2008)
;
_computing_structure_solution
;
SHELXS97 (Sheldrick, 2008)
;
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Kappa APEXII CCD'
_diffrn_measurement_method       '\w and \ f scan'
_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  0.0336
_diffrn_reflns_av_sigmaI/netI    0.0260
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            18765
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.976
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(SADABS; Bruker, 2004)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.394
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.378
_refine_diff_density_min         -0.320
_refine_ls_extinction_coef       0.0027(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method
;
SHELXL97 (Sheldrick, 2008)
;
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     315
_refine_ls_number_reflns         3764
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0659
_refine_ls_R_factor_gt           0.0482
_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^)+(0.0700P)^2^+1.3588P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1315
_refine_ls_wR_factor_ref         0.1463
_reflns_number_gt                2856
_reflns_number_total             3765
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            su4152sup1.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1546725
_cod_database_fobs_code          1546725