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Generated: April 24, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,770,759

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Title: Prostaglandins of the F series
Abstract:The present invention provides new compounds, 13,14-dihydro-15-keto-PGFs, and vassopressors containing them, which raise blood pressure without substantial ephemeral depression of blood pressure, trachea or enteron contraction effect inherent in usual PGFs.
Inventor(s): Ueno; Ryuzo (Nishinomiya, JP), Ueno; Ryuji (Nishinomiya, JP), Oda; Tomio (Itami, JP)
Assignee: R-Tech Ueno, Ltd. (Osaka-Fu, JP)
Filing Date:Aug 23, 1996
Application Number:08/701,865
Claims:1. A 13,14-dihydro-15-keto-PGF represented by the formula:

in which a bond between C-2 and C-3 is a single or a double bond, X is a group: ##STR37## R.sub.1 is a hydrogen atom or a C.sub.1-4 alkyl, phenyl, benzoyl, hydroxyalkyl, alkoxyalkyl, trialkylsilyl or tetrahydropyranyl group;

R.sub.2 is a hydrogen atom or a lower alkyl group;

R.sub.3 is hydroxyl;

R.sub.3' is hydroxyl; R.sub.4 and R.sub.5 are independently a hydrogen atom or a lower alkyl group, R.sub.6 is a C.sub.1-9 alkyl group containing a C.sub.1-2 alkoxy substituent or ##STR38## (wherein R.sub.7 is a hydrogen or halogen atom or a halogenated methyl group; and a physiologically acceptable salt of said 13,14-dihydro-15-keto-PGF.

2. The 13,14-dihydro-15-keto-PGF of claim 1, wherein R.sub.1 is a C.sub.1-4 alkyl group.

3. The 13,14-dihydro-15-keto-PGF according to claim 1, wherein at least one of R.sub.4 and R.sub.5 is a lower alkyl group, or a physiologically acceptable salt thereof.

4. The 13,14-dihydro-15-keto-PGF of claim 1 comprising a 13,14-dihydro-15-keto-16-substituted-PGF represented by the formula: ##STR39## or a physiologically acceptable salt thereof.

5. The 13,14-dihydro-15-keto-PGF according to claim 1, wherein each of R.sub.4 and R.sub.5 is a lower alkyl group, or a physiologically acceptable salt thereof.

6. The 13,14-dihydro-15-keto-PGF according to claim 1, comprising a 13,14-dihydro-15-keto-16-desbutyl-16-trifluoromethyl-phenoxy-PGF or a physiologically acceptable salt thereof.

7. A 13,14-dihydro-15-keto-PGF represented by the formula: ##STR40## in which a bond between C-2 and C-3 is a single or a double bond, X is a group: ##STR41## R.sub.1 is a hydrogen atom or a C.sub.1-4 alkyl, phenyl, benzoyl, hydroxyalkyl, alkoxyalkyl, trialkylsilyl or tetrahydropyranyl group;

R.sub.2 is a hydrogen atom or a lower alkyl group;

R.sub.3 is hydroxyl;

R.sub.3' is hydroxyl; R.sub.4 and R.sub.5 are independently a hydrogen atom or a lower alkyl group, R.sub.6 is a c.sub.6-9 alkyl group which may be branched or contain a double bond; and a physiologically acceptable salt of said 13,14-dihydro-15-keto-PGF.

8. The 13,14-dihydro-15-keto-PGF of claim 7, wherein R.sub.1 is a C.sub.1-4 alkyl group.

9. The 13,14-dihydro-15-keto-PGF according to claim 7, wherein at least one of R.sub.4 and R.sub.5 is a lower alkyl group, or a physiologically acceptable salt thereof.

10. The 13,14-dihydro-15-keto-PGF according to claim 7, wherein each of R.sub.4 and R.sub.5 is a lower alkyl group, or a physiologically acceptable salt thereof.

11. A 13,14-dihydro-15-keto-20-ethyl-PGF represented by the formulae: ##STR42## in which a bond between C-2 and C-3 is a single or a double bond, X is a group: ##STR43## R.sub.1 is a hydrogen atom or a C.sub.1-4 alkyl, phenyl, benzoyl, hydroxyalkyl, alkoxyalkyl, trialkylsilyl or tetrahydropyranyl group;

R.sub.2 is a hydrogen atom or a lower alkyl group;

R.sub.3 is hydroxyl;

R.sub.3' is a hydroxyl; R.sub.4 and R.sub.5 are independently a hydrogen atom or a lower alkyl group or a physiologically acceptable salt thereof.

12. A 13,14-dihydro-15-keto-PGF of claim 7 being a 13,14-dihydro-15-keto-20-ethyl-PGF.sub.1.alpha., a C.sub.1 -C.sub.4 alkyl ester or a physiologically acceptable salt thereof.

13. A 13,14-dihydro-15-keto-PGF of claim 7 being a 13,14-dihydro-15-keto-20-ethyl-PGF.sub.1.alpha. isopropyl ester.

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