Lactams XIX. Synthesis of derivatives of 2,4-diazophenothiazine and pyrazolo[3,4-b]-[1,4]benzothiazine


In continuation of our s tudies of the reac t ion of H-carbethoxy der iva t ives of l ae t im e thers with var ious amidinel ike compounds [4], we now r e p o r t on the condensation of the lac t im ether of 2 c a r b e t h o x y 2 , 3 d i hydro l , 4 -benzo th i az ine -3 -one (II) with compounds of the genera l fo rmula R C ( = N H ) N H 2 (III; R = SH… (More)
DOI: 10.1007/BF00771400


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