Unexpected isocyanide-based three-component bicyclization for the stereoselective synthesis of densely functionalized pyrano[3,4-c]pyrroles.
Gao, Qian; Hao, Wen-Juan; Liu, Feng; Tu, Shu-Jiang; Wang, Shu-Liang; Li, Guigen; Jiang, Bo; Chemical communications (Cambridge, England) 52 (2016) 900–903; doi:10.1039/c5cc08071a

data_7118331
_publ_section_title
;
 Unexpected isocyanide-based three-component bicyclization for the
 stereoselective synthesis of densely functionalized
 pyrano[3,4-c]pyrroles.
;
_journal_issue                   5
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              900
_journal_page_last               903
_journal_paper_doi               10.1039/c5cc08071a
_journal_volume                  52
_journal_year                    2016
_chemical_formula_sum            'C21 H23 N O7'
_chemical_formula_weight         401.40
_space_group_IT_number           2
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-09-18 deposited with the CCDC.
2015-11-06 downloaded from the CCDC.
;
_cell_angle_alpha                91.924(2)
_cell_angle_beta                 104.975(2)
_cell_angle_gamma                108.523(2)
_cell_formula_units_Z            2
_cell_length_a                   8.6216(13)
_cell_length_b                   9.7362(15)
_cell_length_c                   13.104(2)
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.540
_cell_volume                     999.5(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0114
_diffrn_reflns_av_sigmaI/netI    0.0229
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            6055
_diffrn_reflns_theta_full        28.54
_diffrn_reflns_theta_max         28.54
_diffrn_reflns_theta_min         2.22
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  0.989
_exptl_absorpt_correction_T_min  0.978
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.334
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             424
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.276
_refine_diff_density_min         -0.192
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     267
_refine_ls_number_reflns         4403
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0602
_refine_ls_R_factor_gt           0.0468
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0660P)^2^+0.2344P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1210
_refine_ls_wR_factor_ref         0.1311
_reflns_number_gt                3475
_reflns_number_total             5091
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc08071a2.cif
_cod_data_source_block           ab
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7118331