Nonionic vitamin E derivatives and a method for the preparation thereof, and polymeric ampliphilic vesicles made therefrom
US5869703A · kind A · utility
9Cited by
0References
6Claims
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Key dates
| Filing date | Oct 28, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Oct 28, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed herein are nonionic vitamin E or polyethoxylated vitamin E derivatives represented by the following formula (I) and a method for the preparation thereof, and polymeric amphiphilic vesicles made therefrom. ##STR1## wherein, n is an integer from 0 to 30, inclusive; A is --CH.sub.2 --CH(CH.sub.3)-- or --CH.dbd.C(CH.sub.3)--; B is --CH.sub.3 at the 5-, 7- or 8- position; m is 1, 2, or 3; and R is residue of acrylate or methacrylate derivatives represented by the following formula (II); ##STR2## wherein, R.sub.1 is H or CH.sub.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.