Phosphonic acid-based cationic lipids
US5958901A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1996 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Jun 5, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J51/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.