US 4,146,643 AGranted

Increasing vigilance or treating cerebral insufficiency with substituted vincamines

AssigneeSandoz Ltd.

InventorPaul Pfaffli

Life of this patent

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Abstract

Halo-, hydroxy-, alkyl- and alkoxy-vincamine derivatives are useful vigilance increasing agents.

Claims24

Dependent claims

A compound of formula I, ##STR13## wherein R.sub.1 is bromine, fluorine, chlorine, or lower alkyl, or a pharmaceutically acceptable acid addition salt thereof, in racemic form or in individual optical isomer form.

Dependencies are inferred from the claim text.

Facts

Application: 05/857,019Filed 2 Dec 1977 · continuation in part
Priority: CH 17689/7318 Dec 1973
Granted: 27 Mar 1979
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

C07D 209/16
Radicals substituted by nitrogen atoms, not forming part of a nitro radical: tryptamines
C07D 461/00
Heterocyclic compounds containing indolo [3,2,1-d,e] pyrido [3,2,1,j] [1,5]-naphthyridine ring systems
C07D
Heterocyclic compounds

Family

Serial531,602Parent of this continuation-in-part · filed 11 Dec 1974
Serial661,563Parent of this continuation-in-part · filed 26 Feb 1976
US 4,146,643 AThis patent

From the US filing history. Foreign family members aren’t listed.

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