Hydroxyproline derivatives

Details Hydroxyproline derivatives Hydroxyproline derivatives

2000-12-26

2003-10-21

Russel, Jeffrey E. (Department: 1654)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Peptide containing doai

C514S249000, C544S349000

Reexamination Certificate

active

06635620

ABSTRACT:

TECHNICAL FIELD
This invention relates to hydroxyproline derivatives or their salts, to a therapeutic agent containing hydroxyproline derivatives or their salts for damaged organs and tissues, and to a method of treatment for damaged organs and tissues by administration of hydroxyproline derivatives or their salts.
BACKGROUND ART
It is well known that human placenta and its hydrolysate contain various biologically active substances. For instance, “tissue therapies” with the hydrolysate of human placenta prepared by Filatov's method have been used to treat chronic diseases such as asthma, rheumatism, hepatitis and anti-aging for its proliferative effect on elastic fibroblasts of blood vessels and myofibroblasts.
While human placenta and its hydrolysate are inferred to contain various biologically active substances as mentioned above, their primary effective substances are not yet known. Consequently, in the course of separating, purifying, and identifying the biologically active substances in the hydrolysate of human placenta, the inventors found hydroxyproline derivatives having cell-proliferative and cell-protective activities.
Based on these findings, the purposes of this invention are to provide novel hydroxyproline derivatives which stimulate the proliferation of cells, and to provide a therapeutic agent for damaged organs and tissues, which contain such hydroxyproline derivatives.
DESCRIPTION OF THE INVENTION
The compounds of this invention are hydroxyproline derivatives represented by the following general formulas (1) and (2) or their salts.
(wherein R is hydrogen or alkyl group which may be substituted with hydroxy group, amino group, carboxy group, aminocarbonyl group, guanidino group, heterocyclic group, mercapto group, alkylthio group or phenyl group optionally substituted with hydroxy group)
In this invention, the therapeutic agent for damaged organs and tissues contains a hydroxyproline derivative represented by the following general formula (1), (2) or (3) or their salts, as an effective ingredient.
(wherein R is the same as defined above)
The present invention also relates to the method of treatment for damaged organs and tissues comprising administration of an effective amount of hydroxyproline derivative represented by the above-mentioned formula (1), (2) or (3) or their salts, and a use of hydroxyproline derivative represented by the above-mentioned formula (1), (2) or (3) or their salts for manufacturing the therapeutic agent for damaged organs and tissues.
Further, as for the hydroxyproline derivatives represented by the general formulas (1), (2) and (3), the compounds in which R is hydroxymethyl are speculated to be the most useful.


REFERENCES:
patent: 3832465 (1974-08-01), Ghadimi
patent: 6017884 (2000-01-01), Ichida et al.
patent: A2186994 (1990-07-01), None
patent: A532533 (1993-02-01), None
patent: A543408 (1993-02-01), None
patent: 97/17991 (1997-05-01), None
Rosen et al., Int. J. Peptide Protein Res., vol. 35, No. 6, pp. 545-549 (1990).
Jandke et al., J. Chromatogr., vol. 382, pp. 39-45 (1986).
Kodama et al., Anal. Chim. Acta, vol. 352 Nos. 1-3, pp. 141-153 (1997).
Charpentier et al., Clin, Chim. Acta, vol. 138, No. 3, pp. 299-308 (1984).
Alexandrou et al., Biochem. Int., vol. 21, No. 2, pp. 271-278 (1990).
Zanaboni et al., J. Chromatogr., vol. 683, No. 1, pp. 97-107 (1996).
Aonuma et al., J. Pharmacobio-Dyn., vol. 5, No. 1, pp. 40-48 (1982).
Chemical Abstract, vol. 51, 1037I (1957).

Affiliated with

Also associated with

Rating

Hydroxyproline derivatives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydroxyproline derivatives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydroxyproline derivatives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3159597