Sladowska H, Bartoszko-Malik A, Zawisza T
Farmaco Sci. 1985 Jan;40(1):65-72.
It has been found that the condensation of esters of 3H-2-imino-7-methyl-4-oxopyrido[3,2-e]-1,3-thiazine-5- and -6-carboxylic acids (I, II) with formaldehyde and primary amines affords the corresponding derivatives of a new heterocyclic system pyrido[3,2-e]-1,3-thiazino [3,2-a]-s-triazine (IX-XXIV).
已发现,3H-2-亚氨基-7-甲基-4-氧代吡啶并[3,2-e]-1,3-噻嗪-5-和-6-羧酸(I,II)的酯与甲醛和伯胺缩合可得到新杂环体系吡啶并[3,2-e]-1,3-噻嗪并[3,2-a]-s-三嗪(IX-XXIV)的相应衍生物。