Biodegradable polymers with sulfenamide bonds for drug delivery applications
US9345776B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2012 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Oct 30, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides methods for preparing polysulfenamides having a repeating unit of formula (4):wherein R1 is selected from the group consisting of alkyl, alkenyl, alkynyl, haloalkyl, alkoxyalkyl, hydroxyalkyl, ether, cycloether, aryl, heteroaryl, arylalkyl, heteroarylalkyl, hydroxyaryl, arylether, cycloalkyl, heterocycloalkyl, hydroxycycloalkyl, halocycloalkyl, and aminocycloalkyl. Each of R4, R5 and R6 are independently selected from the group consisting of alkyl, alkenyl, alkynyl, haloalkyl, alkoxyalkyl, hydroxyalkyl, ether, cycloether, aryl, heteroaryl, arylalkyl, heteroarylalkyl, hydroxyaryl, arylether, cycloalkyl, heterocycloalkyl, hydroxycycloalkyl, halocycloalkyl, and aminocycloalkyl. Microparticles comprising polysulfenamides can be used as delivery vehicles for a variety of biological applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.