| 摘要 |
Compounds of Formula I are novel and useful as cardiovascular agents, particularly anti-arrhythmic agents: <IMAGE> (I) or the 5-imino-tautomer thereof or a salt of either, wherein R1 is C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl or C3-10 cycloalkyl, any of which is optionally substituted, and R2 to R6 are independently selected from hydrogen, halogen atom, C1-6 alkyl, alkenyl or alkynyl (all optionally substituted by one or more of halogen, hydroxy and aryl, amino, mono- or di-substituted amino, alkoxy (optionally substituted by one or more of halogen, hydroxy and aryl), alkenyloxy, aryl, acyloxy, cyano, nitro, aryl and alkylthio groups or any adjacent two of R2 to R6 are linked to form a (-CH=CH-CH=CH-) group. |
