Natural semi-synthetic and synthetic lipid derivatives of...

Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...

Reexamination Certificate

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C514S053000, C514S078000, C536S053000

Reexamination Certificate

active

07553981

ABSTRACT:
The subject of the present invention is new substances which are derived from naturally occurring ceramides and sphingosine and also from synthetic compounds with principally the same structure in that they represent dimers, trimers, tetramers etc., hence i.e. oligomers of the initial substances.

REFERENCES:
patent: 5753093 (1998-05-01), Raguse et al.
patent: 6358919 (2002-03-01), Kanie et al.
patent: 7393938 (2008-07-01), Yedgar
patent: 198 41 794 (2000-03-01), None
patent: 1 201 736 (2002-05-01), None
patent: WO 00/68238 (2000-11-01), None
patent: WO 03/068255 (2003-08-01), None
Nicholas et al.,J. Am. Chem. Soc., 122, 4011-4019 (2000).
English Translation of the International Preliminary Report on Patentability for International Patent Application No. PCT/EP2004/006076.

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