C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 215/28 (2006.01) C07D 401/04 (2006.01) C07D 513/04 (2006.01)
Patent
CA 2695072
The present invention provides process for synthesis of 8-methoxy-9H-isothiazolo[5,4-b]quinoline-3,4-diones and 8A,9-di-hydro-4aH-isothiazolo[5,4-b]quinoline-3,4-diones of the Formula (A). The substituents R, R5, R6, R7, R8 and R9 are defined herein. The invention also provides novel synthetic intermediates useful in the synthesis of 8-methoxy-9H-isothiazolo[5,4-b]quinoline-3,4- diones and 8A, 9-dihydro-4aH-isothiazolo [5,4-b] quinoline-3,4-diones.
Synthèse de 8-méthoxy-9H-isothiazolo[5,4- b]quinoline-3,4-diones et de 8A,9-dihydro-4aH-isothiazolo[5,4-b]quinoline-3,4-diones de formule A. Les substituants R, R5, Re, R7, Rg et R9 sont tels que définis dans la description. Également, nouveaux intermédiaires synthétiques utiles dans la synthèse de 8-méthoxy-9H-isothiazolo[5,4-b]quinoline-3,4- diones et de 8A,9-dihydro-4aH-isothiazolo[5,4-b]quinoline-3,4-diones.
Bradbury Barton James
Hashimoto Akihiro
Kim Ha Young
Lucien Edlaine
Pais Godwin
Achillion Pharmaceuticals Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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