Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...
Patent
1983-07-20
1990-02-20
Bond, Robert T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Unsubstituted hydrocarbyl chain between the ring and the -c-...
514220, C07D48704, A61K 3155
Patent
active
049027948
ABSTRACT:
1-Substituted-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepines of the formula (III): ##STR1## wherein R is selected from the group consisting of hydroxy, esters thereof, and alkoxy, in which the alkyl group is of 1 to 3 carbon atoms, inclusive; wherein R.sub.1 is selected from the group consisting of hydrogen and alkyl of 1 to 3 carbon atoms, inclusive; and wherein R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are selected from the group consisting of hydrogen, alkyl of 1 to 3 carbon atoms, inclusive, halogen, nitro, cyano, trifluoromethyl, and alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, alkanoylamino, and dialkylamino in which the carbon chain moieties are of 1 to 3 carbon atoms, inclusive, are produced by condensing a 1,3-dihydro-5-phenyl-2H-1,4-benzodiazepine-2-thione of the formula (I): ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are defined as above, with an organic acid hydrazide of the formula (II): ##STR3## wherein R' is selected from the group consisting of hydroxy, and alkoxy defined as above. When R' is hydroxy, esters can be made in conventional manner.
The new products of formula III including their pharmacologically acceptable acid addition salts and N-oxides are useful as sedatives, tranquilizers and muscle relaxants in mammals and birds.
REFERENCES:
patent: Re28505 (1975-08-01), Hester
patent: 3681343 (1972-08-01), Hester
patent: 4427590 (1984-01-01), Allgeier et al.
Armitage Robert A.
Bond Robert T.
Reynolds John T.
The Upjohn Company
Williams, Jr. Sidney B.
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