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- [31] Unexpected conversion of 4-oxo-4H-chromene-2-carboxylic acid to 2-(1,3-benzothiazol-2-yl)-4H-chromen-4-one and spiro[1,4-benzothiazine-2,2'-chromene]-3,4'(3'H,4H)-dione Chemistry of Heterocyclic Compounds, 2022, 58 : 68 - 72
- [33] Crystal structure of 4,5,2′,3′-tetrahydro-4,3,1′,3′-tetramethyl-1-(2-nitrophenyl)spiro-{[1H][1,2,3]-triazole-5,2′-benzimidazole}, [C6H4N2(CH3)2]C[CN3(C6H4NO2)(CH3)2] ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 2000, 215 (03): : 387 - 388
- [34] 1′-benzyl-3-(2,6-dichlorophenyl)-1"-methyl-4,4"-diphenyloxazole-5(4H)-spiro-3′-piperidine-5′-spiro-3"-pyrrolidine-2"-spiro-3"′-1H-indole-2"′(3"′H),4′-dione benzene hemisolvate ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 2003, 59 : O1280 - O1282
- [35] 1,2,3,4-Tetrahydro-4′-furfuryl-1′-methylnaphthalene-2-spiro-3′-pyrrolidine-2′-spiro-1"-acenaphthene-1,2"-dione ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 2003, 59 : O1875 - O1877
- [40] 1′-methyl-4′-tolyl-1H-indole-3-spiro-2′-pyrrolidine-3′-spiro-5"-(thiazolo[3,2-b][1,2,4]triazole)-2,6"(3H,5"H)-dione ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 2003, 59 : O1796 - O1797