申请人:Sterix Limited
公开号:US08003783B2
公开(公告)日:2011-08-23
There is provided a compound of Formula (III)
wherein
R1 is a selected from an alkyloxyalkyl group, a nitrile group, alkylaryl group, alkenylaryl group, alkylheteroaryl group, alkenylheteroaryl group, ═N—O—alkyl or ═N—O—H group, branched alkenyl, alkyl-alcohol group, amide or alkylamide or —CHO so that R1 together with R3 provide the enol tautomer or R1 together with R3 form a pyrazole, wherein (a) R4 is ═N—O-alkyl or ═N—O—H group, (b) the pyrazole is substituted with one of alkyl-OH group, alkyl ester group, alkyloxyalkyl group, branched alkyl group, and an amide and/or (c) the 2-position is substituted with a group selected from —OH and —O-hydrocarbyl or a heteroaryl ring;
R2 is selected from —OH and a sulphamate group; and
R3 is selected from —OH or ═O; wherein the ring system may be further substituted with one or more hydroxyl, alkyl, alkoxy, alkinyl or halo substituents.
提供了一种化合物,其化学式为(III),其中R1是从烷氧基烷基,腈基,烷基芳基,烯基芳基,烷基杂芳基,烯基杂芳基,═N-O-烷基或═N-O-H基,支链烯基,烷基醇基,酰胺或烷基酰胺或—CHO中选择的一种,以便R1与R3共同提供烯醇互变体或R1与R3形成吡唑烷,其中(a)R4是═N-O-烷基或═N-O-H基,(b)吡唑烷被取代为烷基-OH基,烷基酯基,烷氧基烷基,支链烷基和酰胺和/或(c)2-位置被取代为从—OH和—O-烃基或杂芳基环中选择的基团;R2从—OH和磺酰胺基中选择;R3从—OH或═O中选择;其中环系统可以进一步取代一个或多个羟基,烷基,烷氧基,烯基或卤代基。