Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Ester doai
Reexamination Certificate
2007-07-24
2007-07-24
Oh, Taylor Victor (Department: 1625)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Ester doai
C560S155000, C206S569000
Reexamination Certificate
active
10410636
ABSTRACT:
The present invention relates to compounds being esters of 5-aminolevulinic acids or pharmaceutically acceptable salts thereof, including compounds of formula (I) R22N—CH2COCH2—CH2CO—OR1 (wherein R1 may represent alkyl optionally substituted by hydroxy, alkoxy, acyloxy, alkoxycarbonyloxy, amino, aryl, oxo or fluoro groups and optionally interrupted by oxygen, nitrogen, sulphur or phosphorus atoms; and R2 represents a hydrogen atom or a group R1, and both R2 groups may be the identical or different), and their use in diagnosis and photochemotherapy of disorders or abnormalities of external or internal surfaces of the body, and products and kits for performing the invention.
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Bjorseth Alf
Gierskcky Karl E.
Moan Johan
Peng Qian
Steen Harald
Kenyon & Kenyon LLP
Oh Taylor Victor
Photocure ASA
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