Efficient construction of bioactive trans-5A5B6C spirolactones via bicyclo[4.3.0] α-hydroxyketones
Yujie, Zhu; Huo, Jing qian; Fan, Zhijin; Wu, Qifan; Xiang, Li; Shuang, Zhou; Xiong, Lixia; Tatiana, Kalinina; Tania, Gluhareva; Organic & Biomolecular Chemistry  (2018) –; doi:10.1039/C7OB02701J

data_7156072
_publ_section_title
;
 Efficient construction of bioactive trans-5A5B6C spirolactones via
 bicyclo[4.3.0] \a-hydroxyketones
;
_journal_name_full               'Organic &amp; Biomolecular Chemistry'
_journal_paper_doi               10.1039/C7OB02701J
_journal_year                    2018
_chemical_formula_moiety         'C9 H12 O2'
_chemical_formula_sum            'C9 H12 O2'
_chemical_formula_weight         152.19
_space_group_crystal_system      tetragonal
_space_group_IT_number           88
_space_group_name_Hall           '-I 4ad'
_space_group_name_H-M_alt        'I 41/a'
_symmetry_space_group_name_Hall  '-I 4ad'
_symmetry_space_group_name_H-M   'I 41/a :2'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2017-08-30
_audit_creation_method
;
Olex2 1.2
(compiled 2017.03.28 svn.r3405 for OlexSys, GUI svn.r5337)
;
_audit_update_record
;
2017-08-31 deposited with the CCDC.
2018-01-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            16
_cell_length_a                   20.7040(19)
_cell_length_b                   20.7040(19)
_cell_length_c                   7.2027(7)
_cell_measurement_reflns_used    3865
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.6
_cell_volume                     3087.5(5)
_computing_cell_refinement       'CrystalClear-SM Expert 2.1 b42'
_computing_data_collection       'CrystalClear-SM Expert 2.1 b42 (Rigaku, 2015)'
_computing_data_reduction        'CrystalClear-SM Expert 2.1 b42'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      133.15
_diffrn_detector_area_resol_mean 5.814
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0316
_diffrn_reflns_av_unetI/netI     0.0152
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            15061
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.527
_diffrn_reflns_theta_min         3.584
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9891
_exptl_absorpt_correction_T_min  0.9820
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.310
_exptl_crystal_density_method    "'not measured'"
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1312
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.274
_refine_diff_density_min         -0.165
_refine_diff_density_rms         0.034
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     101
_refine_ls_number_reflns         1755
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0419
_refine_ls_R_factor_gt           0.0340
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0423P)^2^+1.9603P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0837
_refine_ls_wR_factor_ref         0.0892
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1494
_reflns_number_total             1755
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ob02701j2.cif
_cod_data_source_block           m20170616a1
_cod_original_cell_volume        3087.5(6)
_cod_database_code               7156072
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.989
_shelx_estimated_absorpt_t_min   0.982
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All O(H) groups
2.a Ternary CH refined with riding coordinates:
 C9(H9)
2.b Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C5(H5A,H5B), C7(H7A,H7B), C8(H8A,H8B)
2.c Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4)
2.d Idealised tetrahedral OH refined as rotating group:
 O2(H2)
;
_olex2_submission_special_instructions 'No special instructions were received'