Synthesis of tricyclic pyrido[2,3-b][1,4]-thiazines via nucleophilic substitution of activated precursors
作者:Manuela Weber、Walter Jäger、Thomas Erker
DOI:10.1002/jhet.5570400516
日期:2003.9
Pyrido-anellated compounds analogous to tricyclic 1,4-benzothiazine derivatives were synthesized. Thus, under mild reaction conditiones substitution of thiolactim 3 with different N-nucleophiles yielded the precursors for compounds, which were cyclized in a further step to the corresponding tricyclic derivatives.
合成了类似于三环的1,4-苯并噻嗪衍生物的吡啶基带芳基的化合物。因此,在温和的反应条件下,用不同的N-亲核试剂取代硫代内酯3产生了化合物的前体,将其在进一步的步骤中环化为相应的三环衍生物。