Annulation Reaction of 3-Acylmethylidene Oxindoles with Huisgen Zwitterions and Its Applications in the Syntheses of Pyrrolo[4,3,2-de]quinolinones and Marine Alkaloids Ammosamides.
Yang, Changjiang; Chen, Xiangyu; Tang, Tong; He, Zhengjie; Organic letters 18 (2016) 1486–1489; doi:10.1021/acs.orglett.6b00456

data_1542622
_publ_section_title
;
 Annulation Reaction of 3-Acylmethylidene Oxindoles with Huisgen
 Zwitterions and Its Applications in the Syntheses of
 Pyrrolo[4,3,2-de]quinolinones and Marine Alkaloids Ammosamides.
;
_journal_issue                   6
_journal_name_full               'Organic letters'
_journal_page_first              1486
_journal_page_last               1489
_journal_paper_doi               10.1021/acs.orglett.6b00456
_journal_volume                  18
_journal_year                    2016
_chemical_formula_sum            'C14 H9 Cl N4 O7'
_chemical_formula_weight         380.70
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 110.87(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8587(18)
_cell_length_b                   18.447(4)
_cell_length_c                   9.759(2)
_cell_measurement_reflns_used    4354
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.8784
_cell_measurement_theta_min      2.2081
_cell_volume                     1490.1(6)
_computing_cell_refinement       crystalclear
_computing_data_collection       crystalclear
_computing_data_reduction        crystalclear
_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      113(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'rigaku saturn'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
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_diffrn_reflns_theta_max         27.90
_diffrn_reflns_theta_min         2.21
_diffrn_standards_decay_%        0
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_diffrn_standards_interval_time  0
_diffrn_standards_number         0
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_exptl_absorpt_correction_T_max  0.9639
_exptl_absorpt_correction_T_min  0.9408
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   crystalclear
_exptl_crystal_density_diffrn    1.697
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.20
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_refine_ls_extinction_coef       0.024(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         3548
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0433
_refine_ls_R_factor_gt           0.0338
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0622P)^2^+0.0955P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0894
_refine_ls_wR_factor_ref         0.0964
_reflns_number_gt                2859
_reflns_number_total             3548
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol6b00456_si_007.cif
_cod_data_source_block           shelxl
_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/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to 'constr'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 1542621--1542626.cif.
;
_cod_original_cell_volume        1490.1(5)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1542622