Ugi-derived dehydroalanines as a pivotal template in the diversity oriented synthesis of aza-polyheterocycles.
García-González, Ma Carmen; Hernández-Vázquez, Eduardo; Gordillo-Cruz, Raúl E; Miranda, Luis D.; Chemical communications (Cambridge, England) 51 (2015) 11669–11672; doi:10.1039/c5cc02927a

data_7117456
_publ_section_title
;
 Ugi-derived dehydroalanines as a pivotal template in the diversity
 oriented synthesis of aza-polyheterocycles.
;
_journal_issue                   58
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              11669
_journal_page_last               11672
_journal_paper_doi               10.1039/c5cc02927a
_journal_volume                  51
_journal_year                    2015
_chemical_formula_moiety         'C18 H22 N2 O2'
_chemical_formula_sum            'C18 H22 N2 O2'
_chemical_formula_weight         298.38
_chemical_melting_point          209.0(10)
_chemical_name_systematic
;2-Methylene-6-oxo-1,2,3,4-tetrahydro-6H-pyrido
[2,1-a]isoindole-10b-carboxylic acid tert-butylamide

;
_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
_audit_update_record
;
2012-11-21 deposited with the CCDC.
2015-06-09 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 95.325(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.1496(13)
_cell_length_b                   9.3085(13)
_cell_length_c                   19.945(3)
_cell_measurement_reflns_used    3292
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      24.70
_cell_measurement_theta_min      2.42
_cell_volume                     1691.4(4)
_computing_cell_refinement       'SMART V 5.625 (Bruker, 1999)'
_computing_data_collection       'SMART V 5.625 (Bruker, 1999)'
_computing_data_reduction        'SAINT V 6.23A (Bruker, 1999)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 0.83
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Smart APEX AXS CCD area detector'
_diffrn_measurement_method       '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  0.0645
_diffrn_reflns_av_sigmaI/netI    0.0588
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            13090
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         2.05
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.172
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.179
_refine_diff_density_min         -0.138
_refine_diff_density_rms         0.033
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.943
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     222
_refine_ls_number_reflns         3088
_refine_ls_number_restraints     70
_refine_ls_restrained_S_all      0.972
_refine_ls_R_factor_all          0.1136
_refine_ls_R_factor_gt           0.0540
_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^)+(0.0710P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1274
_refine_ls_wR_factor_ref         0.1462
_reflns_number_gt                1577
_reflns_number_total             3088
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc02927a2.cif
_cod_data_source_block           compound2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '208-210' was changed to '209.0(10)'
- the average value was taken and precision was estimated.

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/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 3271 2015-04-21 07:52:19Z andrius 
;
_cod_original_cell_volume        1691.3(4)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7117456
_solved_by                       'Simon Hernandez-Ortega'