申请人:Hoechst Aktiengesellschaft
公开号:US04797409A1
公开(公告)日:1989-01-10
New 1-hydroxy-2-pyridones of the general formula I ##STR1## in which R.sup.1, R.sup.2 and R.sup.3, which are identical or different, denote hydrogen or lower alkyl having 1-4 carbon atoms, R.sup.1 and R.sup.3 preferably being hydrogen, and R.sup.2 preferably being methyl, X denotes S or, preferably, O, Y denotes hydrogen or up to 2 halogen atoms, namely chlorine and/or bromine, Z denotes a single bond or the bivalent radicals O, S, --CR.sub.2 -- (R=H or C.sub.1 -C.sub.4 -alkyl) or other 2-valent radicals with 2-10 carbon and, optionally, oxygen and/or sulfur atoms linked to form a chain, it being obligatory when the radicals contain 2 or more oxygen and/or sulfur atoms for the latter to be separated by at least 2 carbon atoms, and it being possible for 2 adjacent carbon atoms also to be linked together by a double bond, and the free valencies of the carbon atoms being saturated by H and/or C.sub.1 -C.sub.4 -alkyl groups, Ar denotes an aromatic ring system which has up to two rings and can be substituted by up to three radicals from the group comprising fluorine, chlorine, bromine, methoxy, C.sub.1 -C.sub.4 -alkyl, trifluoromethyl and trifluoromethoxy, are prepared by a variety of process variants. The compounds and their physiologically tolerated salts with inorganic or organic bases mainly have antimycotic, anti-bacterial and antiviral activity. The compounds of the formula V ##STR2## in which R.sup.1, R.sup.2, R.sup.3, X, Y, Z and Ar have the same meaning as in formula I, which occur in the preparation of the compounds of the formula I, are also new.
通式I的新1-羟基-2-吡啶酮具有以下结构:其中R.sup.1、R.sup.2和R.sup.3表示氢或1-4个碳原子的较低烷基,R.sup.1和R.sup.3最好是氢,R.sup.2最好是甲基,X表示S或更好是O,Y表示氢或最多2个卤原子,即氯和/或溴,Z表示单键或双价基团O、S、-CR.sub.2- (R=H或C.sub.1-C.sub.4-烷基)或其他2-10个碳原子,可选地,氧和/或硫原子连接形成链,当基团含有2个或更多氧和/或硫原子时,后者之间必须由至少2个碳原子分隔,也可以通过双键将2个相邻的碳原子连接在一起,碳原子的自由度通过H和/或C.sub.1-C.sub.4-烷基基团饱和,Ar表示含有最多两个环且可以被来自氟、氯、溴、甲氧基、C.sub.1-C.sub.4-烷基、三氟甲基和三氟甲氧基的最多三个基团取代的芳香环系统,通过各种工艺变体制备。这些化合物及其在生理上耐受的无机或有机碱盐主要具有抗真菌、抗细菌和抗病毒活性。通式V的化合物##STR2##其中R.sup.1、R.sup.2、R.sup.3、X、Y、Z和Ar的含义与通式I中相同,在通式I的制备过程中出现的化合物也是新的。