申请人:Behr Jean-Paul
公开号:US20090069262A1
公开(公告)日:2009-03-12
The invention relates to oligonucleotide-oligocation molecules A
i
B
j
H that can be synthetized via automated phosphoramidite chemistry having oligonucleotides moieties Ai and oligocations moieties Bj, wherein. A
i
is an i-mer oligonucleotide residue, with i=5 to 50, where nucleotide A is an oligomer with naturally or non naturally occurring nucleobases and/or pentafuranosyl groups and/or native phosphodiester bonds, for example selected from the group comprising deoxyribo, ribo, locked (LNA) nucleotides as well as their chemical modifications or substitutions such as phosphorothioate, 2′-fluoro, 2′-O-alkyl, or a marker group such as a fluorescent agent, Bj is a j-mer organic oligocation moiety, with j=1 to 50, where B is selected from the group comprising .—HPO
3
—R
1
—(X—R
2
n
)
n1
—X—R
3
—O—, where R
1
, R
2
n and R
3
, identical or different, are lower alkylene, X is NH or NC(NH
2
)
2
, n varies from 1 to 5 and n1=2 to 20, .—HPO
3
—R
4
—CH(R
5
X
1
)—R
6
—O—, where R
4
is lower alkylene, R
5
and R
6
, identical or different, are lower alkylene and X
1
is putrescine, spermidine or spermine residue, .—HPO
3
—R
7
-(aa)
n2
-R
8
—O—, where R
7
is lower alkylene and R
8
is lower alkylene, serine, a natural aminoalcohol, (aa)
n2
is a peptide containing natural aminoacids with cationic side chains, such as Arginine, Lysine, Ornithine, -Histidine, Diaminopropionic acid and n2=2 to 20.
该发明涉及能够通过自动磷酸酰胺化学合成的寡核苷酸-寡阳离子分子AiBjH,其中Ai和Bj分别具有寡核苷酸部分Ai和寡阳离子部分Bj,其中。Ai是一个i-聚合物寡核苷酸残基,其中i=5到50,核苷酸A是一个具有天然或非天然发生的核碱基和/或五糖基团和/或天然磷酸二酯键的寡聚体,例如从包括脱氧核糖核酸、核糖核酸、锁定(LNA)核苷酸以及它们的化学修饰或替代物,如磷硫酸酯、2'-氟、2'-O-烷基或标记基团,如荧光剂中选择的一组中选取,Bj是一个j-聚合物有机寡阳离子基团,其中j=1到50,其中B选自包括。-HPO3-R1-(X-R2n)n1-X-R3-O-,其中R1、R2n和R3,相同或不同,是较低的烷基,X是NH或NC(NH2)2,n在1到5之间变化,n1=2到20,-HPO3-R4-CH(R5X1)-R6-O-,其中R4是较低的烷基,R5和R6,相同或不同,是较低的烷基,X1是腐胺、精胺或精氨基残基,-HPO3-R7-(aa)n2-R8-O-,其中R7是较低的烷基,R8是较低的烷基、丝氨酸、一种天然氨基醇,(aa)n2是含有带正电侧链的天然氨基酸的肽,如精氨酸、赖氨酸、鸟氨酸、组氨酸、二氨基丙酸,n2=2到20。