Studies on Hypoglycemic Agents. IV. Synthesis of 1, 4, 3-Benzoxathiazine-4, 4-dioxides
作者:SEIGO SUZUE、TUTOMU IRIKURA
DOI:10.1248/cpb.16.806
日期:——
2-Hydroxybenzenesulfonamides were prepared in good yield from 2-acetoxyphenyl-sulfonylchlorides via N-acetyl-2-hydroxybenzenesulfonamides, followed by hydrolysis. The preparations of 2-alkyl, aryl, benzyl, or substituted amino-1, 4, 3-benzoxathiazine-4, 4-dioxides were described. Further 2-methyl-, or benzyl-2, 3-dihydro-1, 4, 3-benzoxathiazine-4, 4-dioxide was also prepared.
通过 N-乙酰基-2-羟基苯磺酰胺,然后进行水解,以 2-乙酰氧基苯磺酰氯为原料制备了 2-羟基苯磺酰胺,收率很高。此外,还介绍了 2-烷基、芳基、苄基或取代氨基-1,4,3-苯并恶嗪-4,4-二氧 化物的制备方法。此外,还制备了 2-甲基或苄基-2,3-二氢-1,4,3-苯并恶嗪-4,4-二氧化物。