An Efficient, one-pot synthesis of isomeric ellipticine derivatives through intramolecular imino-Diels-Alder reaction
Gaddam, Vikram; Nagarajan, Rajagopal; Organic Letters 10 (2008) 1975–1978; doi:10.1021/ol800497u

data_1516495
_publ_section_title
;
 An Efficient, one-pot synthesis of isomeric ellipticine derivatives
 through intramolecular imino-Diels-Alder reaction
;
_journal_coden_ASTM              ORLEF7
_journal_issue                   10
_journal_name_full               'Organic Letters'
_journal_page_first              1975
_journal_page_last               1978
_journal_paper_doi               10.1021/ol800497u
_journal_volume                  10
_journal_year                    2008
_chemical_formula_sum            'C26 H22 Cl N3'
_chemical_formula_weight         411.91
_chemical_name_systematic
; 
 cis-9-chloro-16,16-dimethyl-5,8,8a,15,15a,16-hexahydrobenzo
 [5',6']pyrrolizino [2',1':5,6]pyrido[2,3-c]carbazole 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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
_cell_angle_alpha                67.11(3)
_cell_angle_beta                 75.27(3)
_cell_angle_gamma                85.97(3)
_cell_formula_units_Z            4
_cell_length_a                   10.840(2)
_cell_length_b                   14.299(3)
_cell_length_c                   15.854(3)
_cell_measurement_temperature    298(2)
_cell_volume                     2188.3(9)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w 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  0.0846
_diffrn_reflns_av_sigmaI/netI    0.1377
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            21101
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.44
_exptl_absorpt_coefficient_mu    0.192
_exptl_absorpt_correction_T_max  0.9962
_exptl_absorpt_correction_T_min  0.9238
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.250
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.184
_refine_diff_density_min         -0.181
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.899
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     562
_refine_ls_number_reflns         7671
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      0.899
_refine_ls_R_factor_all          0.1674
_refine_ls_R_factor_gt           0.0716
_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^)+(0.0535P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1394
_refine_ls_wR_factor_ref         0.1707
_reflns_number_gt                3321
_reflns_number_total             7671
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             1504647
_cod_data_source_file            ol800497u-file004.cif
_cod_data_source_block           rn49
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/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 2281 2013-09-26 08:29:07Z andrius 

 Updated bibliographic information.

 Antanas Vaitkus,
 2019-09-22

 Marked entry as a duplicate of entry 1504647.

 Antanas Vaitkus,
 2019-09-22
;
_cod_original_cell_volume        2188.3(8)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1516495