Regio- and diastereoselective synthesis of cyclobutylated phenothiazines <i>via</i> [2 + 2] photocycloaddition: demonstrating wavelength-gated cycloreversion inside live cells.
Sharangi, Sanhati; Chakraborty, Barsha; Jha, Raushan Kumar; Mandal, Swarnadeep; Koner, Apurba Lal; Kumar, Sangit; Chemical science 16 (2025) 709–720; doi:10.1039/d4sc07817a

data_1573459
_publ_section_title
;
 Regio- and diastereoselective synthesis of cyclobutylated phenothiazines
 <i>via</i> [2 + 2] photocycloaddition: demonstrating wavelength-gated
 cycloreversion inside live cells.
;
_journal_issue                   2
_journal_name_full               'Chemical science'
_journal_page_first              709
_journal_page_last               720
_journal_paper_doi               10.1039/d4sc07817a
_journal_volume                  16
_journal_year                    2025
_chemical_formula_moiety         'C25 H19 N O S'
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_atom_sites_solution_hydrogens   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2024-11-18 deposited with the CCDC.	2024-12-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
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_cell_angle_gamma                90
_cell_formula_units_Z            4
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_cell_volume                     1880.3(10)
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_diffrn_ambient_temperature      140(2)
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_diffrn_radiation_type           MoK\a
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_exptl_absorpt_coefficient_mu    0.188
_exptl_absorpt_correction_type   none
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_refine_ls_R_factor_all          0.0447
_refine_ls_R_factor_gt           0.0397
_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^)+(0.0439P)^2^+0.9643P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0973
_refine_ls_wR_factor_ref         0.1008
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3609
_reflns_number_total             4046
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4sc07817a4.cif
_cod_data_source_block           2o
_cod_depositor_comments
'Adding full bibliography for 1573456--1573463.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1573459
_shelx_shelxl_version_number     2018/3
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_shelx_hkl_checksum              25250