申请人:Kyowa Hakko Kirin Co., Ltd.
公开号:US20140294978A1
公开(公告)日:2014-10-02
The present invention provides a cationic lipid and the like. The cationic lipid is for delivering a medicament containing a cationic lipid which facilitates the introduction of a nucleic acid into a cell or the like, and is represented by formula (I).
In the formula, R
1
is linear or branched alkyl, alkenyl, or alkynyl, each having 8 to 24 carbon atoms,
R
2
is linear or branched alkyl, alkenyl, or alkynyl, each having 8 to 24 carbon atoms, or alkoxyethylene, alkoxypropylene, alkenyloxyethylene, alkenyloxypropylene, alkynyloxyethylene, or alkynyloxypropylene,
R
3
and R
4
may be the same or different, and are each alkyl having 1 to 3 carbon atoms or are combined together to form alkylene having 2 to 6 carbon atoms, or R
3
and R
5
are combined together to form alkylene having 2 to 6 carbon atoms,
R
5
is a hydrogen atom, alkyl having 1 to 6 carbon atoms, alkenyl having 3 to 6 carbon atoms, amino, monoalkylamino, hydroxy, alkoxy, carbamoyl, monoalkylcarbamoyl, dialkylcarbamoyl, or the like, or is combined together with R
3
to form alkylene having 2 to 6 carbon atoms,
X is alkylene having 1 to 6 carbon atoms, and
Y is a single bond, alkylene having 1 to 6 carbon atoms, or the like.
本发明提供了一种阳离子脂质等。该阳离子脂质用于传递含有阳离子脂质的药物,有助于将核酸引入细胞或类似物中,并由式(I)表示。在该式中,R1为具有8到24个碳原子的线性或支链烷基、烯基或炔基,R2为具有8到24个碳原子的线性或支链烷基、烯基或炔基,或者为烷氧乙烯、烷氧丙烯、烯氧乙烯、烯氧丙烯、炔氧乙烯或炔氧丙烯,R3和R4可以相同也可以不同,分别为具有1到3个碳原子的烷基,或者结合在一起形成具有2到6个碳原子的烷基,或者R3和R5结合在一起形成具有2到6个碳原子的烷基,R5为氢原子、具有1到6个碳原子的烷基、具有3到6个碳原子的烯基、氨基、单烷基氨基、羟基、烷氧基、氨基甲酰基、单烷基氨基甲酰基、二烷基氨基甲酰基等,或者与R3结合在一起形成具有2到6个碳原子的烷基,X为具有1到6个碳原子的烷基,Y为单键、具有1到6个碳原子的烷基等。