The Anancomeric Character of the Pharmacophore 1,3,4-Thiadiazoline Framework in Chiral Spiro-Cyclohexyl Derivatives: Effects on Stereochemistry and Spiro-Junction Lability. Thermodynamic Aspects.
Menta, Sergio; Carradori, Simone; Secci, Daniela; Faggi, Cristina; Mannina, Luisa; Cirilli, Roberto; Pierini, Marco; The Journal of organic chemistry 80 (2015) 11932–11940; doi:10.1021/acs.joc.5b01635

data_4031753
_publ_section_title
;
 The Anancomeric Character of the Pharmacophore 1,3,4-Thiadiazoline
 Framework in Chiral Spiro-Cyclohexyl Derivatives: Effects on
 Stereochemistry and Spiro-Junction Lability. Thermodynamic Aspects.
;
_journal_issue                   24
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              11932
_journal_page_last               11940
_journal_paper_doi               10.1021/acs.joc.5b01635
_journal_volume                  80
_journal_year                    2015
_chemical_absolute_configuration ad
_chemical_formula_moiety         2(C12H19N3O2S)+C1.5H3O0.5
_chemical_formula_sum            'C25.5 H41 N6 O4.5 S2'
_chemical_formula_weight         567.76
_chemical_name_systematic
;
 N-(1-Acetyl-6-methyl-4-thia-1,2-diaza-spiro[4.5]dec-2-en-3-yl)-acetamide
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
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_atom_sites_solution_hydrogens   geom
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_audit_creation_date
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'Thu Jan 26 10:40:26 2012'
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
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_cell_angle_alpha                90.00
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_computing_cell_refinement
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
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_computing_data_collection
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_data_reduction
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_molecular_graphics    Ortep3
_computing_publication_material  Ciftab
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR2004 J.Appl.Cryst.38,381-388'
_diffrn_ambient_temperature      150.0
_diffrn_detector_area_resol_mean 8.1241
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Xcalibur, Onyx'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Cu) X-ray Source'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.0273
_diffrn_reflns_av_sigmaI/netI    0.0259
_diffrn_reflns_limit_h_max       30
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_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
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_diffrn_reflns_limit_l_min       -24
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_diffrn_standards_decay_%        50
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_exptl_absorpt_coefficient_mu    1.980
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
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_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.273
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.556
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_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.014(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
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_refine_ls_number_parameters     352
_refine_ls_number_reflns         5311
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_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0406
_refine_ls_R_factor_gt           0.0380
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0641P)^2^+2.6256P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1022
_refine_ls_wR_factor_ref         0.1064
_reflns_number_gt                5075
_reflns_number_total             5311
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo5b01635_si_002.cif
_cod_data_source_block           exp_616
_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.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 4031753--4031756.cif.
;
_cod_original_sg_symbol_H-M      C2
_cod_original_formula_sum        'C25.50 H41 N6 O4.50 S2'
_cod_database_code               4031753