A compound represented by formula (I):
[wherein, for example, X is a hydrogen atom or a halogen atom;
R
1
is a hydrogen atom;
R
2
is a hydrogen atom or a C
1-4
alkyl group;
R
3
is —CHO or —COOH; and
R
4
is —CH═CH—(CH
2
)
p
—CH
3
(wherein p is an integer of 1 to 12), —CH(OH)—(CH
2
)
q
—CH
3
(wherein q is an integer of 1 to 13), —CH(OH)—CH
2
—CH(CH
3
)—(CH
2
)
2
—CH═C(CH
3
)
2
, —CH═CH—CH(CH
3
)—(CH
2
)
3
—CH(CH
3
)
2
, —(CH
2
)
2
—CH(CH
3
)—(CH
2
)
3
—CH(CH
3
)
2
or —(CH
2
)
8
—CH
3
], an optical isomer thereof and a pharmaceutically acceptable salt thereof. These compounds have antitrypanosoma activity, and accordingly are useful as drugs for preventing or treating the diseases caused by trypanosoma.
化合物的
化学式为(I):[其中,例如,X是氢原子或卤素原子;R1是氢原子;R2是氢原子或C1-4烷基;R3是—CHO或—COOH;而R4是—CH═CH—(
CH2)p—
CH3(其中p是1至12的整数),—CH(OH)—( )q— (其中q是1至13的整数),—CH(OH)— —CH( )—( )2—CH═C( )2,—CH═CH—CH( )—( )3—CH( )2,—( )2—CH( )—( )3—CH( )2或—( )8— ],其光学异构体和药学上可接受的盐。这些化合物具有抗锥虫活性,因此可用作预防或治疗由锥虫引起的疾病的药物。