摘要:
The present invention provides novel amide-based cationic lipids of the general structure: or a salt, or solvate, or enantiomers thereof wherein; (a) Y is a direct link or an alkylene of 1 to about 20 carbon atoms; (b) R1 is H or a lipophilic moiety; (c) R2, R3, and R4 are positively charged moieties, or at least one but not all of R2,R3, or R4 is a positive moiety and the remaining are independently selected from H, an alkyl moiety of 1 to about 6 carbon atoms, or a heterocyclic moiety of about 5 to about 10 carbon atoms; (d) n and p are independently selected integers from 0 to 8, such that the sum of n and o is from 1 to 16; (e) X− is an anion or polyanion and (f) m is an integer from 0 to a number equivalent to the positive charge(s) present on the lipid; provided that if Y is a direct link and the sum of n and p is 1 then one of either R3 or R4 must have an alkyl moiety of at least 10 carbon atoms. The present invention further provides compositions of these lipids with polyanionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions and a kit for preparing the same.
摘要:
The present invention provides novel dimeric cationic lipids. The present invention further provides compositions of these lipids with anionic or polyanionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions and a kit for preparing the same.
摘要:
The present invention provides novel amide-based cationic lipids of the general structure: ##STR1## or a salt, or solvate, or enantiomers thereof wherein; (a) Y is a direct link or an alkylene of 1 to about 20 carbon atoms; (b) R.sub.1 is H or a lipophilic moiety; (c) R.sub.2, R.sub.3, and R.sub.4 are positively charged moieties, or at least one but not all of R.sub.2, R.sub.3, or R.sub.4 is a positive moiety and the remaining are independently selected from H, an alkyl moiety of 1 to about 6 carbon atoms, or a heterocyclic moiety of about 5 to about 10 carbon atoms; (d) n and p are independently selected integers from 0 to 8, such that the sum of n and o is from 1 to 16; (e) X.sup.- is an anion or polyanion and (f) m is an integer from 0 to a number equivalent to the positive charge(s) present on the lipid; provided that if Y is a direct link and the sum of n and p is 1 then one of either R.sub.3 or R.sub.4 must have an alkyl moiety of at least 10 carbon atoms.The present invention further provides compositions of these lipids with polyanionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions and a kit for preparing the same.
摘要:
The present invention provides amide-based oligomeric cationic lipids. The present invention further provides compositions of these amide-based cationic lipids with anionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions and a kit for preparing the same.
摘要:
The present invention provides novel amide-based cationic lipids of the general structure: or a salt, or solvate, or enantiomers thereof wherein; (a) Y is a direct link or an alkylene of 1 to about 20 carbon atoms; (b) R1 is H or a lipophilic moiety; (c) R2, R3, and R4 are positively charged moieties, or at least one but not all of R2, R3, or R4 is a positive moiety and the remaining are independently selected from H, an alkyl moiety of 1 to about 6 carbon atoms, or a heterocyclic moiety of about 5 to about 10 carbon atoms; (d) n and p are independently selected integers from 0 to 8, such that the sum of n and o is from 1 to 16; (e) X− is an anion or polyanion and (f) m is an integer from 0 to a number equivalent to the positive charge(s) present on the lipid; provided that if Y is a direct link and the sum of n and p is 1 then one of either R3 or R4 must have an alkyl moiety of at least 10 carbon atoms. The present invention further provides compositions of these lipids with polyanionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions and a kit for preparing the same.
摘要:
The present invention provides novel phosphonic acid-based cationic lipids of the general structure: ##STR1## or a salt, or solvate, or enantiomers thereof wherein; (a) R.sub.1 is a lipophilic moiety; (b) R.sub.2 is a positively charged moiety; (c) R.sub.3 is a lipophilic moiety of 1 to about 24 carbon atoms, a positively charged moiety, or a negatively charged moiety; (d) n is an integer from 0 to 8; (e) X.sup.- is an anion or polyanion; (f) Y is N or O, and (g) m is an integer from 0 to a number equivalent to the positive charge(s) present on the lipid.The present invention further provides compositions of these lipids with polyanionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions and a kit for preparing the same.
摘要:
The present invention provides novel carbamate-based cationic lipids of the general structure: or a salt, or solvate, or enantiomers thereof, wherein (a) R1 is a lipophilic moiety; (b) R2 is a positively charged moiety; (c) n is an integer from 1 to 8; (d) X is an anion or polyanion; and (e) m is an integer from 0 to a number equivalent to the positive charge(s) present on the lipid. The present invention further provides compositions of these lipids with polyanionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions, and a kit for preparing the same.
摘要:
The present invention provides novel carbamate-based cationic lipids of the general structure: or a salt, or solvate, or enantiomers thereof, wherein (a) R1 is a lipophilic moiety; (b) R2 is a positively charged moiety; (c) n is an integer from 1 to 8; (d) X is an anion or polyanion; and (e) m is an integer from 0 to a number equivalent to the positive charge(s) present on the lipid. The present invention further provides compositions of these lipids with polyanionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions, and a kit for preparing the same.
摘要:
The present invention provides novel phosphonic acid-based cationic lipids of the general structure: or a salt, or solvate, or enantiomers thereof wherein; (a) R1 is a lipophilic moiety; (b) R2 is a positively charged moiety; (c) R3 is a lipophilic moiety of 1 to about 24 carbon atoms, a positively charged moiety, or a negatively charged moiety; (d) n is an integer from 0 to 8; (e) X− is an anion or polyanion; (f) Y is N or 0, and (g) m is an integer from 0 to a number equivalent to the positive charge(s) present on the lipid. The present invention further provides compositions of these lipids with polyanionic macromolecules, methods for interfering with protein expression in a cell utilizing these compositions and a kit for preparing the same.
摘要:
Oligomers having chirally pure phosphonate internucleosidyl linkages mixed with non-phosphonate internucleosidyl linkages which hybridize to RNA target sequences and methods for their preparation are provided.