3,7-dithiaprostanoic acid derivative

Details 3,7-dithiaprostanoic acid derivative 3,7-dithiaprostanoic acid derivative

1999-04-08

2000-03-28

Gerstl, Robert

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Ester doai

514573, 560 15, 560121, 562426, 562503, C07C40500, A01K 315575

Patent

active

060432756

ABSTRACT:
A 3,7-dithiaprostanoic acid derivative of the formula (I) ##STR1## (wherein, R.sup.1 is OH, C1.about.6 alkyloxy, NR.sup.6 R.sup.7 (R.sup.6, R.sup.7 are H, C1.about.6 alkyl.); R.sup.2 is H, OH; R.sup.3 is single bond, C1.about.6 alkylene; R.sup.4 is (i) C1.about.8 alkyl substituted by C1.about.6 alkyloxy, halogen etc., (ii) phenyloxy, C3.about.7 cycloalkyloxy, (iii) furyl, furyloxy, thienyl, thienyloxy, naphthyl, naphthyloxy, phthalanyl, phthalanyloxy, (iv) phenyl, phenyloxy, C3.about.7 cycloalkyl, C3.about.7 cycloalkyloxy substituted by C1.about.6 alkyl etc., (v) furyl, furyloxy, thienyl, thienyloxy, naphthyl, naphthyloxy, phthalanyl, phthalanyloxy substituted by C1.about.6 alkyl etc.; R.sup.5 is H, C1.about.6 alkyl.) can bind PGE.sub.2 receptor (particularly, EP4 subtype receptor) strongly. So, they are useful for the prevention and/or treatment of immunological diseases (autoimmune diseases, rejection after organ transplantation etc.), asthma, abnormal bone formation, neuronal cell death, liver damage, nephritis, hypertension, myocardiac ischemia and sleeping disorder etc.

REFERENCES:
patent: 5731452 (1998-03-01), Minoshima
patent: 5892099 (1999-04-01), Maruyama

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