作者:S.D. Carter、G.W.H. Chesseman
DOI:10.1016/0040-4020(77)80028-8
日期:1977.1
pyrazino-analogue 6 both give pairs of isomeric N-methyl derivatives. The N-methyl compounds 2 and 7 on oxidation with iodobenzene dichloride and other reagents give sulphoxides and sulphones (accompained by some ring substitution) but treatment of 6 with iodobenzene dichlorode gives benzothiazole-2-carboxamide 17. The action of sodium nitrite in acetic acid upon the thiazine 6 gives the 3-nitro derivative 25
喹喔啉[2,3-b] [1,4]苯并噻嗪1及其吡嗪类似物6均给出成对的N-甲基衍生物。的Ñ -甲基化合物2和7与碘苯二氯化物和其它试剂氧化得到亚砜和砜(由某些环取代accompained),但治疗的6与碘代苯dichlorode给出苯并噻唑-2-甲酰胺17。亚硝酸钠在乙酸中对噻嗪6的作用产生3-硝基衍生物25,该取代已发生在吡嗪环上;描述了其他硝化作用。