The invention concerns a compound of formula (I), wherein Y represents a macrocycle whereof the cycle comprises 9 to 36 atoms, and is functionalized by three amine or COOH functions; R
c
represents a group of formula H—X
a
—X
b
—X
c
—X
d
—X
e
—(X
f
)
i
—, wherein i represents 0 or 1, X
n
is in particular selected among lysine, arginine, ornithine residues, X
b
is in particular selected among glycine, asparagine, L-proline or D-proline residues, X
c
et X
d
are in particular selected among tyrosine, phenylalanine or 3-nitrotyrosine residues, X
e
et X
f
are in particular selected among the following amino acid residues: NH
2
—(CH
2
)
n
—COOH, n ranging from 1 to 10 or NH
2
—(CH
2
—CH
2
—O)
m
—CH
2
CH
2
COOH, m ranging from 3 to 6, provided that one at least of the amino acid residues X
a
, X
b
, X
c
and X
d
is different from the corresponding amino acid in the sequence of the natural CD40
143
Lys-Gly-Tyr-Tyr
146
fragment
该发明涉及一种化合物,其
化学式为(I),其中Y代表一个大环,该环包含9至36个原子,并且通过三个胺基或COOH功能官能化;Rc代表一个
化学式为H—Xa—Xb—Xc—Xd—Xe—(Xf)i—的基团,其中i代表0或1,Xn特别选自赖
氨酸、精
氨酸、
鸟氨酸残基之一,Xb特别选自甘
氨酸、
天冬氨酸、
L-脯氨酸或
D-脯氨酸残基之一,Xc和Xd特别选自
酪氨酸、苯丙
氨酸或
3-硝基
酪氨酸残基之一,Xe和Xf特别选自以下
氨基酸残基之一:NH2—(
CH2)n—COOH,其中n取1至10之间的值,或NH2—( — —O)m— COOH,其中m取3至6之间的值,前提是
氨基酸残基Xa、Xb、Xc和Xd中至少有一个与天然C
D40143Lys-Gly-Tyr-Tyr146片段中相应的
氨基酸不同。