Disclosed are compounds represented by the following chemical formula (I) and pharmacologically acceptable salts thereof which are novel compounds useful as anticancer agents, antiviral agents or antimicrobial agents.
The subject matter of the present invention is an ophthalmologic composition having an UV absorber and a violet absorber, wherein a high transmission is achieved in the blue light spectrum, and an eye implant, in particular an intraocular lens, which is produced with this ophthalmologic composition.
Copolymer and Ophthalmological Composition
申请人:Ritter Helmut
公开号:US20110028667A1
公开(公告)日:2011-02-03
The invention relates to a copolymer, which includes 20 to 95 percent by weight, based on the total weight of the copolymer, of structural units derived from at least one hydrophilic monomer, and 5 to 80 percent by weight, based on the total weight of the copolymer, of structural units derived from at least one monomer according to the general formula I
wherein R
1
, R
2
and R
3
each independently of each other denote hydrogen or alkyl-, Y: denotes O or NR
4
with R
4
selected from hydrogen or alkyl-, X: denotes O, S, SO or SO
2
, S denotes a structural unit selected from CHR
5
or (CHR
5
CHR
5
O)
i
CH
2
, wherein all of the R
5
each independently of each other denote hydrogen or alkyl-, n and i independently of each other denote an integer between 1 and 10 and m denotes an integer between 2 and 6, and wherein the copolymer has a water content from 1 to 59 percent by weight based on the total weight of the copolymer. Furthermore, the invention relates to an ophthalmologic composition.