申请人:The University of Melbourne
公开号:US04873228A1
公开(公告)日:1989-10-10
A compound for use as an inhibitor for the enzyme dihydroorotase and which is of general formula (I) ##STR1## where either (i) A and B together are .dbd.S or (ii) A is --H, and B is --COR.sub.2 or --SR.sub.6 ; and R.sub.1 and R.sub.2 which may be the same or different are --OH; alkyloxymethyl, a di-, tri- or polypeptide group, --OR where R is saturated or unsaturated C.sub.1-16 alkyl, C.sub.1-16 alkyloxymethyl, or 4-alkyl-piperidinyl-alkyl, --NR'R' where each R' is independently selected from --H, saturated or unsaturated C.sub.1-16 alkyl, or any group above to be hydrolyzed in vivo to hydroxy; R.sub.3 and R.sub.4 which may be the same or different are --H, C.sub.1-6 alkyl, hydroxy C.sub.1-16 alkyl, hydroxy C.sub.1-6 ether group, tetrahydrofuranyl, tetrahydropyranyl, a sugar or acetylated sugar group, hexylcarbamyl, methylglycine-N-carbonyl, or any group able to be hydrolyzed in vivo to --H; R.sub.5 is --H, halo, or C.sub.1-6 alkyl; R.sub.6 is C.sub.1-6 alkyl or 1-methyl-4-nitroimidazol-5-yl; and the dotted line represents a double bond which may be absent or present in the 4-5 position. The compounds are useful as anti-cancer and anti-malarial drugs.
用于抑制二氢乳清酸酶的化合物,其具有通用公式 (I) ##STR1## 其中 (i) A和B共同是.dbd.S或(ii) A是--H,B是--COR.sub.2或--SR.sub.6;R.sub.1和R.sub.2相同或不同,是--OH;烷氧基甲基,二肽、三肽或多肽组,--OR,其中R是饱和或不饱和的C.sub.1-16烷基,C.sub.1-16烷氧基甲基,或4-烷基-哌啶基-烷基,--NR'R',其中每个R'独立地选自--H,饱和或不饱和的C.sub.1-16烷基,或任何在体内可被水解为羟基的上述组;R.sub.3和R.sub.4相同或不同,是--H,C.sub.1-6烷基,羟基C.sub.1-16烷基,羟基C.sub.1-6醚基,四氢呋喃基,四氢吡喃基,糖或乙酰化糖基,己基氨基甲酰基,甲基甘氨酸-N-甲酰基,或任何在体内可被水解为--H的组;R.sub.5是--H,卤素或C.sub.1-6烷基;R.sub.6是C.sub.1-6烷基或1-甲基-4-硝基咪唑-5-基;虚线代表一个双键,它可以在4-5位置不存在或存在。这些化合物可用作抗癌和抗疟疾药物。