The different modes of chiral [1,2,3]triazolo[5,1-<i>b</i>][1,3,4]thiadiazines: crystal packing, conformation investigation and cellular activity
Obydennov, Konstantin L'vovich; Kalinina, Tatiana Andreevna; Vysokova, Olga Alexandrovna; Slepukhin, Pavel Alexandrovich; Pozdina, Varvara Alexandrovna; Ulitko, Maria Valer'evna; Glukhareva, Tatiana Vladimirovna; Acta Crystallographica Section C 76 (2020) –; doi:10.1107/S2053229620009328

data_2022204
_publ_section_title
;
 The different modes of chiral
 [1,2,3]triazolo[5,1-<i>b</i>][1,3,4]thiadiazines: crystal packing,
 conformation investigation and cellular activity
;
_journal_coeditor_code           FM3064
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first
;
;
_journal_paper_doi               10.1107/S2053229620009328
_journal_volume                  76
_journal_year                    2020
_chemical_formula_iupac          'C17 H20 N4 O3 S'
_chemical_formula_moiety         'C17 H20 N4 O3 S'
_chemical_formula_sum            'C17 H20 N4 O3 S'
_chemical_formula_weight         360.43
_chemical_name_systematic
'Ethyl 6,6-dimethyl-5-(4-methylbenzoyl)-6,7-dihydro-5<i>H</i>-[1,2,3]triazolo[5,1-<i>b</i>][1,3,4]thiadiazine-3-carboxylate'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                90
_cell_angle_beta                 102.337(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.0154(3)
_cell_length_b                   14.2211(11)
_cell_length_c                   15.9349(7)
_cell_measurement_reflns_used    2433
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      27.9760
_cell_measurement_theta_min      2.6240
_cell_volume                     1774.44(17)
_computing_cell_refinement
;
CrysAlis PRO (Agilent, 2013)
;
_computing_data_collection
;
CrysAlis PRO (Agilent, 2013)
;
_computing_data_reduction
;
CrysAlis PRO (Agilent, 2013)
;
_computing_molecular_graphics
;
OLEX2 (Dolomanov <i>et al.</i>,  2009)
;
_computing_publication_material
;
OLEX2 (Dolomanov <i>et al.</i>,  2009), PLATON (Spek, 2020) and
publCIF (Westrip, 2010)
;
_computing_structure_refinement
;
SHELXL2018 (Sheldrick, 2015)
;
_computing_structure_solution
;
SHELXS97 (Sheldrick, 2008)
;
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 15.9555
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Xcalibur 3'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0289
_diffrn_reflns_av_unetI/netI     0.0462
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8945
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.280
_diffrn_reflns_theta_min         2.601
_exptl_absorpt_coefficient_mu    0.206
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.94686
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(CrysAlis PRO; Agilent, 2013)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.349
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.209
_refine_diff_density_min         -0.244
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         4411
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0788
_refine_ls_R_factor_gt           0.0452
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0428P)^2^+0.3794P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0980
_refine_ls_wR_factor_ref         0.1127
_reflns_number_gt                2950
_reflns_number_total             4411
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            fm3064sup1.cif
_cod_data_source_block           V
_cod_original_cell_volume        1774.45(17)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2022204
_cod_database_fobs_code          2022204
_shelx_hkl_checksum              13693
_shelx_res_checksum              35051