Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Patent
1984-10-02
1985-11-05
Ford, John M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
C07D40112
Patent
active
045515255
ABSTRACT:
A process for preparing N-(2-pyridyl)-2-methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxamide-1,1-di oxide which comprises reacting an alkyl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide with P-phenyl-N,N'-di-2-pyridylphosphonium diamide.
REFERENCES:
patent: 4474955 (1984-10-01), Iannella
patent: 4474956 (1984-10-01), Zirngibl et al.
patent: 4478996 (1984-10-01), Almenara
patent: 4483982 (1984-11-01), Weeks
Sket Boris
Zupan Marko
Zupancic Natasa
Zupet Pavel
Ford John M.
KRKA, tovarna zdravil, n.sol.o.
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