Alkylation of indolizinethione at the sulfur atom by the action of RCOCH₂Br (R = Me, Ar, CO₂Me, OEt) leads to thioethers, and subsequent closure of the thiazine ring of which leads to the formation of stable antiaromatic thiazino[4,3,2-cd]indolizines.

中文翻译：

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基于吲哚嗪-5-硫酮的亲电环化反应合成抗芳香族噻嗪并吲哚并嗪

RCOCH ₂ Br（R = Me，Ar，CO ₂ Me，OEt）作用下的吲哚嗪硫酮在硫原子上的烷基化反应会生成硫醚，随后噻嗪环的封闭导致形成稳定的抗芳族噻嗪[4]。 ，3,2- cd ]吲哚嗪酮。