申请人:——
公开号:US20030055213A1
公开(公告)日:2003-03-20
Disclosed in a peptide represented by the following formula (I):
X-A-Trp-B-Gly-Thr-E-G-Y (I)
wherein
A represents Asn or Asp;
B represents His or Lys;
E represents Ala or Ser;
G represents Ala or Pro;
X represents X
1
-Gly or
1
Y represents hydroxy, lower alkoxy, amino,
2
wherein
each of X
1
and X
3
represents hydrogen, benzyloxycarbonyl, t-butyloxycarbonyl or 9-fluorenylmethyloxycarbonyl, or carbonyl-substituted or unsubstituted lower alkanoyl;
each of X
2
and Y
2
represents hydrogen;
Y
1
represents hydroxy, lower alkoxy or amino; or
X
1
and Y
1
, or X
2
and Y
2
are combined together to form a single bond as X
1
—Y
1
or X
2
—Y
2
; and
Z represents hydroxy, lower alkoxy, benzyloxy, benzhydryloxy, amino,
3
where
Z
2
is hydroxy, lower alkoxy, benzyloxy, benzhydryloxy or amino,
Gly-Z
1
where
Z
1
is hydroxy, lower alkoxy, benzyloxy, benzhydryloxy, amino,
4
where Z
2
is as defined previously, or Z
1
is combined with X
1
to form a single bond as X
1
—Z
1
,
Ala-Z
1
where Z
1
is as defined previously,
Val-Z
1
where Z
1
is as defined previously,
Trp-Z
1
where Z
1
is as defined previously,
Trp-Gly-Z
1
where Z
1
is as defined previously,
Trp-Asn-Tyr-Tyr-Trp-Z
1
where Z
1
is as defined previously,
Trp-Phe-Phe-Asn-Tyr-Tyr-
7
Hyt-Z
1
where Z
1
is as defined previously, and
7
Hyt represents
7
-hydroxytryptophan,
Trp-Ile-Ile-Trp-Z
1
where Z
1
is as defined previously,
Trp-Val-Tyr-Phe-W-His-Leu-Asp-Ile-Ile-Trp-Z
1
where Z
1
is as defined previously and W represents Ala, Ser or Cys,
Trp-W-His-Leu-Asp-Ile-Ile-Trp-Z
1
where Z
1
and W are as defined previously,
Trp-Val-Tyr-Tyr-W-His-Leu-Asp-Ile-Ile-Trp-Z
1
where Z
1
and W are as defined previously,
Trp-Leu-Tyr-Phe-W-His-Gln-Asp-Val-Ile-Trp-Z
1
where Z
1
and W are as defined previously,
Trp-Val-Tyr-Phe-W-Phe-Phe-Asn-Tyr-Tyr-Trp-Z
1
where Z
1
and W are as defined previously,
Trp-Phe-Phe-Asn-Tyr-Tyr-W-His-Leu-Asp-Ile-Ile-Trp-Z
1
where Z
1
is as defined previously,
Trp-Phe-Phe-Asn-Tyr-Tyr-Asn-Ile-Ile-Trp-Z
1
where Z
1
is as defined previously,
J-Phe-M-Q-Tyr-R-T-Z
1
where
J is Trp or a single bond,
M is Phe or a single bond,
Q is Asn or a single bond,
R is Tyr or a single bond,
T is
Trp,
Ala,
Phe,
Tyr,
Trp-Trp,
Asn-Tyr-Tyr-Trp,
Trp-Asn-Tyr-Tyr-Trp,
Try-Val-Tyr-Phe-W-His-Leu-Asp-Ile-Ile-Trp,
where W is as defined previously, or a single bond,
2 or more of J, M, Q, R and T are not a single bond simultaneously, and Z
1
is as defined previously,
or a pharmaceutically acceptable salt thereof.
The peptide has endothelin-antagonizing activity, and is therefore useful for treatment of hypertension, asthma, cerebral apoplexy, angina pectoris, acute renal failure, cardiac infarction, cerebral vasospasm, etc.
以下是肽(I)的化学式,其中揭示了该肽:X-A-Trp-B-Gly-Thr-E-G-Y (I)
其中,
A代表天冬氨酸或天冬酰胺酸;
B代表组氨酸或赖氨酸;
E代表丙氨酸或丝氨酸;
G代表丙氨酸或脯氨酸;
X代表X1-甘氨酸或1Y代表羟基,低级烷氧基,氨基,2
其中,
X1和X3各代表氢、苄氧羰基、叔丁氧羰基或9-芴甲氧羰基,或者是取代或未取代的低级烷酰基;
X2和Y2各代表氢;
Y1代表羟基,低级烷氧基或氨基;或者X1和Y1,或X2和Y2结合成单键,形成X1—Y1或X2—Y2;
Z代表羟基,低级烷氧基,苄氧基,苯甲基氧基,氨基,3
其中,
Z2是羟基,低级烷氧基,苄氧基,苯甲基氧基或氨基,
Gly-Z1
其中,
Z1是羟基,低级烷氧基,苄氧基,苯甲基氧基,氨基,4
其中,
Z2如上所定义,或者Z1与X1结合成单键,形成X1—Z1,
Ala-Z1
其中Z1如上所定义,
Val-Z1
其中Z1如上所定义,
Trp-Z1
其中Z1如上所定义,
Trp-Gly-Z1
其中Z1如上所定义,
Trp-Asn-Tyr-Tyr-Trp-Z1
其中Z1如上所定义,
Trp-Phe-Phe-Asn-Tyr-Tyr-7Hyt-Z1
其中Z1如上所定义,7Hyt代表7-羟基色氨酸,
Trp-Ile-Ile-Trp-Z1
其中Z1如上所定义,
Trp-Val-Tyr-Phe-W-His-Leu-Asp-Ile-Ile-Trp-Z1
其中Z1如上所定义,W代表丙氨酸,丝氨酸或半胱氨酸,
Trp-W-His-Leu-Asp-Ile-Ile-Trp-Z1
其中Z1和W如上所定义,
Trp-Val-Tyr-Tyr-W-His-Leu-Asp-Ile-Ile-Trp-Z1
其中Z1和W如上所定义,
Trp-Leu-Tyr-Phe-W-His-Gln-Asp-Val-Ile-Trp-Z1
其中Z1和W如上所定义,
Trp-Val-Tyr-Phe-W-Phe-Phe-Asn-Tyr-Tyr-Trp-Z1
其中Z1和W如上所定义,
Trp-Phe-Phe-Asn-Tyr-Tyr-W-His-Leu-Asp-Ile-Ile-Trp-Z1
其中Z1如上所定义,
Trp-Phe-Phe-Asn-Tyr-Tyr-Asn-Ile-Ile-Trp-Z1
其中Z1如上所定义,
J-Phe-M-Q-Tyr-R-T-Z1
其中,
J代表色氨酸或单键,
M代表苯丙氨酸或单键,
Q代表天冬氨酸或单键,
R代表酪氨酸或单键,
T代表色氨酸,丙氨酸,苯丙氨酸,酪氨酸,色氨酸-色氨酸,天冬氨酸-酪氨酸-酪氨酸-色氨酸,色氨酸-天冬氨酸-酪氨酸-酪氨酸-色氨酸,色氨酸-丙氨酸-酪氨酸-苯丙氨酸-W-组氨酸-天冬氨酸-苯丙氨酸-苯丙氨酸-色氨酸,其中W如上所定义,或单键,
J,M,Q,R和T中有2个或更多个不同时是单键,Z1如上所定义,
或其药学上可接受的盐。该肽具有内皮素拮抗活性,因此可用于治疗高血压、哮喘、脑卒中、心绞痛、急性肾衰竭、心肌梗塞、脑血管痉挛等疾病。