학술저널
2-치환-3,4-Dihydro-2H-1,2-benzothiazin-4-one 1,1-dioxides로부터 2-치환-4-Hydroxy-2H-1,2-benzothiazine-3-carboxylic acid 1,1-dioxides의 합성
Synthesis of 2-Substituted-4-hydroxy-2H-1,2-benzothiazine-3-carboxlic acid 1,1-dioxides from 2-Substituted-3,4-dihydro-2H-1,2-benzothiazin-4-one 1,1-dioxides
- 대한약학회
- 약학회지
- 제31권 제1호 (1987년)
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1987.0214 - 18 (5 pages)
- 2
2-Substituted-3,4-dihydro-2H-1,2-benzothiazin-4-one 1,1-dioxide 6 was reatced with magnesium methyl carbonate to form magnesium chelate 7, which could be hydrolized in cold hydrochloric acid solution to give 2-substituted-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid 1,1-dioxide 2 in good yield.
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