申请人:Biota Scientific Management Pty Ltd.
公开号:US05919819A1
公开(公告)日:1999-07-06
Compounds of formula (I), wherein R.sup.1 represents NR.sup.5 R.sup.6, wherein R.sup.5 represents H or a hydrocarbon group optionally substituted by one or more of Br, Cl, F, I, CF.sub.3, NR.sup.7 R.sup.8, CO.sub.2 R.sup.9, CONR.sup.7 R.sup.8, COR.sup.9, OR.sup.10 or SR.sup.10, or a heteroaromatic group; and R.sup.6 represents a hydrocarbon group optionally substituted by one or more of Br, Cl, F, I, CF.sub.3, NR.sup.7 R.sup.8, CO.sub.2 R.sup.9, CONR.sup.7 R.sup.8, COR.sup.9, OR.sup.10 or SR.sup.10, or a heteroaromatic group; R.sup.2 represents a group SO.sub.2 R.sup.9 or COR.sup.9 ; R.sup.3 represents H, C.sub.1-6 -alkyl or C(=NR.sup.11)NR.sup.12 R.sup.13 ; R.sup.4 represents H or C.sub.1-6 alkyl; R.sup.7 and R.sup.8 each independently represent H, C.sub.1-6 alkyl or COR.sup.9 ; R.sup.9 represents C.sub.1-6 alkyl optionally substituted by one or more halogen atoms; R.sup.10 represents H, C.sub.1-6 -alkyl or phenyl; R.sup.11, R.sup.12 and R.sup.13 each independently represent H, C.sub.1-6 alkyl, amino, hydroxy, cyano or nitro; and X represents O or S; and their pharmaceutically acceptable derivatives are neuraminidase inhibitors useful in the treatment of viral infections.
化合物的公式(I),其中R.sup.1代表NR.sup.5R.sup.6,其中R.sup.5代表H或一个烃基,可选地被一个或多个Br、Cl、F、I、CF.sub.3、NR.sup.7R.sup.8、CO.sub.2R.sup.9、CONR.sup.7R.sup.8、COR.sup.9、OR.sup.10或SR.sup.10取代,或一个杂环芳基;而R.sup.6代表一个烃基,可选地被一个或多个Br、Cl、F、I、CF.sub.3、NR.sup.7R.sup.8、CO.sub.2R.sup.9、CONR.sup.7R.sup.8、COR.sup.9、OR.sup.10或SR.sup.10取代,或一个杂环芳基;R.sup.2代表SO.sub.2R.sup.9或COR.sup.9基团;R.sup.3代表H、C.sub.1-6烷基或C(=NR.sup.11)NR.sup.12R.sup.13;R.sup.4代表H或C.sub.1-6烷基;R.sup.7和R.sup.8各自独立地代表H、C.sub.1-6烷基或COR.sup.9;R.sup.9代表一个C.sub.1-6烷基,可选地被一个或多个卤素原子取代;R.sup.10代表H、C.sub.1-6烷基或苯基;R.sup.11、R.sup.12和R.sup.13各自独立地代表H、C.sub.1-6烷基、氨基、羟基、氰基或硝基;而X代表O或S。它们的药学上可接受的衍生物是神经氨酸酶抑制剂,可用于治疗病毒感染。