申请人:——
公开号:US20040077829A1
公开(公告)日:2004-04-22
The present invention relates to a compound of formula I
1
wherein
(i) when a and c are double bonds, R
2
is absent, b is a single bond,
R
1
is
2
or
(ii) when a and c are single bonds, b is a double bond, and R
1
is H,
R
2
is
3
wherein X is straight or branched chain C
1-6
alkyl, —(CH
2
)
n
Ar, C
1-6
cycloalkyl, or —(CH
2
)
n
R″, where R″ is a cyclic hydrocarbyl group;
Y is a natural or unnatural amino acid side chain;
W is OH or NHR
3
, wherein R
3
is —CH(Y′)CO
2
X′, where X′ and Y′ are defined as for X and Y respectively, and may be the same or different to X and Y respectively; and
Z
1
and Z
2
are each independently H, straight or branched chain C
1-6
alkyl, straight or branched chain C
1-6
alkenyl, —(CH
2
)
n
Ar, —(CH
2
)
n
—CO
2
R′, —(CH
2
)
p
—CH═CH—(CH
2
)
q
Ar where p and q are each independently 0 to 5, R′ is C
1-6
alkyl;
and each n may be the same or different and is from 1 to 5.
本发明涉及一种具有以下式I的化合物:
其中
(i) 当a和c为双键时,R2不存在,b为单键,R1为2或
(ii) 当a和c为单键时,b为双键,R1为H,R2为3
其中X为直链或支链C1-6烷基,—(CH2)nAr,C1-6环烷基,或—(CH2)nR″,其中R″为环烷基羟基烷基;
Y为天然或非天然氨基酸侧链;
W为OH或NHR3,其中R3为—CH(Y′)CO2X′,其中X′和Y′分别定义如X和Y,且可能与X和Y分别相同或不同;以及
Z1和Z2各自独立地为H,直链或支链C1-6烷基,直链或支链C1-6烯基,—(CH2)nAr,—(CH2)n—CO2R′,—(CH2)p—CH=CH—(CH2)qAr,其中p和q各自独立地为0至5,R′为C1-6烷基;
每个n可以相同也可以不同,范围为1至5。