A facile synthesis of novel pyrazolo[5′,1′:3, 4]-[1, 2, 4]triazino[6, 5-<i>f</i>][1, 3, 4]thiadiazepines
作者:Yoshihisa Kurasawa、Yumiko Kamigaki、Ho Sik Kim、Chisako Watanabe、Megumi Kanoh、Mari Okiyama、Atsushi Takada、Yoshihisa Okamoto
DOI:10.1002/jhet.5570260365
日期:1989.5
The reaction of the 3-substituted 4-aminopyrazolo[5, 1-c][1, 2, 4]triazines 1a-d with thiosemicarbazide hydrochloride in acetic acid gave new pyrazolo[5′,1′:3, 4][1, 2, 4]triazino[6, 5-f][1, 3, 4]thiadiazepines 3, 4 and 6, which were converted into the 5-oxo derivatives 5 and 7 by hydrolysis in hydrochloric acid/acetic acid.
3-取代的
4-氨基吡唑并[5,1 - c ]
[1,2,4]三嗪1a-d与
硫代
氨基
脲盐酸盐在
乙酸中的反应生成了新的
吡唑并[5',1':3,4] [1 ,2、4]三嗪并[6,5- f ] [ 1、3、4 ]噻二氮杂3、4和6,通过在
盐酸/
乙酸中
水解而转化为5-氧代衍
生物5和7。