申请人:THE UNIVERSITY OF MELBOURNE
公开号:EP0260057A2
公开(公告)日:1988-03-16
A compound for use as an inhibitor for the enzyme dihydroorotase and which is of general formula (I)
where either (i) A and B together are =S
or (ii) A is -H, and B is -COR₂ or -SR₆; and
R₁ and R₂ which may be the same or different are -OH; alkyloxymethyl, a di-, tri- or polypeptide group, -OR where R is saturated or unsaturated C1-16 alkyl, C1-16 alkyloxymethyl, or 4-alkyl-piperidinyl-alkyl, -NRʹRʹ where each Rʹ is independently selected from -H, saturated or unsaturated C1-16 alkyl, or any group able to be hydrolysed in vivo to hydroxy;
R₃ and R₄ which may be the same or different are -H, C1-6 alkyl, hydroxy C1-16 alkyl, hydroxy C1-6 ether group, tetrahydrofuranyl, tetrahydropyranyl, a sugar or acetylated sugar group, hexylcarbamyl, methylglycine-N-carbonyl, or any group able to be hydrolysed in vivo to -H;
R₅ is -H, halo, or C1-6 alkyl;
R₆ is C1-6 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.
一种用作二氢烟酸酶抑制剂的化合物,其通式为(I)
其中 (i) A 和 B 均为 =S
或 (ii) A 为-H,B 为-COR₂或-SR₆;以及
R₁ 和 R₂ 可以相同或不同,均为-OH;烷氧基甲基、二肽基、三肽基或多肽基、-OR(其中 R 是饱和或不饱和 C1-16 烷基、C1-16 烷氧基甲基或 4-烷基-哌啶基-烷基)、-NRʹRʹ(其中每个 Rʹ独立选自-H、饱和或不饱和 C1-16 烷基或任何可在体内水解为羟基的基团);
R₃和R₄可以相同或不同,它们是-H、C1-6 烷基、羟基 C1-16 烷基、羟基 C1-6 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-羰基或任何可在体内水解为-H 的基团;
R₅ 是-H、卤素或 C1-6 烷基;
R₆是 C1-6 烷基或 1-甲基-4-硝基咪唑-5-基;虚线代表双键,双键可能不存在,也可能存在于 4-5 位。这些化合物可用作抗癌和抗疟疾药物。