Abstract:
4-Amino substituted phenylamidine are anthelmintics. The compounds, of which N-(4-aminophenyl)-N'',N''-dimethylacetamidine is a representative embodiment, can be prepared through treatment of a 4-amino aniline with a carboxylic acidamide or thioamide, reduction of an appropriately substituted 4-aminophenylamidine, optionally followed by alkylation of the resultant 4-aminophenylamidine, formation of a Schiff base followed by quaternization and hydrolysis, or hydrolysis of a 4-acylaminophenylamidine.
Abstract:
The present invention relates to new aminophenylamidines and cycloamidines and salts thereof, to processes for their production, and to their use as medicines, especially as parasiticides. Acylaminophenylformamidines, such as N-(p-acetamidophenyl)-N'', N''-dimethylformamidine (U.S. Pat. No. 3,184,482) are already known. This compound, as well as other formamidine derivatives, are, however, ineffective against helminths. Furthermore, Nphenylacetamidines, such as N-(p-chlorophenyl)-N'',N''dimethylacetamidine, are known. These compounds are also ineffective against helminths.
Abstract:
4-Amino substituted phenylamidine are anthelmintics. The compounds, of which N-(4-aminophenyl)N'',N''-dimethylacetamidine is a representative embodiment, can be prepared through treatment of a 4-amino aniline with a carboxylic acidamide or thioamide, reduction of an appropriately substituted 4-amino-phenylamidine, optionally followed by alkylation of the resultant 4aminophenylamidine, formation of a Schiff base followed by quaternization and hydrolysis, or hydrolysis of a 4acylaminophenylamidine.
Abstract:
4-Amino substituted phenylamidine are anthelmintics. The compounds, of which N-(4-aminophenyl)-N'',N''-dimethylacetamidine is a representative embodiment, can be prepared through treatment of a 4-amino aniline with a carboxylic acidamide or thioamide, reduction of an appropriately substituted 4-aminophenylamidine, optionally followed by alkylation of the resultant 4-aminophenylamidine, formation of a Schiff base followed by quaternization and hydrolysis, or hydrolysis of a 4-acylaminophenylamidine.
Abstract:
4-Amino substituted phenylamidines as anthelmintics. The compounds, of which N-(4-aminophenyl)-N'', -N''-dimethylacetamidine is a representative embodiment, can be prepared through treatment of a 4-amino aniline with a carboxylic acidamide or thioamide, reduction of an appropriately substituted 4-amino-phenylamidine, optionally followed by alkylation of the resultant 4aminophenylamidine, formation of a Schiff base followed by quaternization and hydrolysis, or hydrolysis of a 4acylaminophenylamidine.
AND SALTS THEREOF, WHICH POSSESS ACARICIDAL PROPERTIES.
IN WHICH R DENOTES A HALOGEN ATOM, OR AN OPTIONALLY HALOGENSUBSTITUTED LOWER ALKYL, ALKENYL OR ALKOXY RADICAL, R'' DENOTES A HALOGEN ATOM OR AN ALKYL, ALKOXY, ALKENYL OR FLUOROMETHYL RADICAL, R" DENOTES AN ALKYL, ALKENYL OR ALKYNYL RADICAL CONTAINING UP TO 7 CARBON ATOMS, THE ALKENYL RADICAL OPTIONALLY BEING SUBSTITUTED AT THE DOUBLE BOND BY 1 OR 2 CHLORINE OR BROMINE ATOMS, AND N DENOTES 0, 1 OR 2, N-SUBSTITUTED-2-ARYLIMINO-OXAZOLIDINES OF THE FORMULA
WHEREIN R IS LOWER ALKYL OF 1 TO 3 CARBON ATOMS, R1 IS HYDROGEN OR AT LEAST ONE LOWER ALKYL OF 1 TO 5 CARBON ATOMS AND N IS AN INTEGER FROM 2 TO 4, AND WHEREIN THE CYCLOALKYL MOIETY MAY CONTAIN A DOUBLE BOND PROVIDED THAT, IF THERE IS A DOUBLE BOND, SUCH IS NOT IN THE A,BPOSITION, ARE PREPARED BY REACTING 2-CYCLOALKYLISOCYANIDE DICHLORIDES OF THE FORMULA:
(CL-)2C=N-CH WHEREIN R, R1 AND N HAVE THE ABOVE DEFINED MEANINGS AND IN WHICH THE CYCLOALKYL MOIETY MAY CONTAIN A DOUBLE BOND, WITH THE PROVISO THAT IF THERE IS A DOUBLE BOND, SUCH IS NOT IN THE A,B-POSITION, BY HEATING IN HOT WATER OPTIONALLY AT TEMPERATURES ABOVE 100*C. UNDER PRESSURE AND PRECIPITATING THE BASES BY MEANS OF AMMONIA OR ALKALI FROM THE RESULTANT AQUEOUS SOLUTION OF THE 2-CYCLOALKYLAMINO-OXAZOLINE SALTS FORMED. WHEN R1 IS HYDROGEN, THE HYDROGEN ATOM IS ATTACHED TO A CARBON ATOM SO THAT IN ALL CASES EACH CARBON ATOM MAINTAINS THE PROPER VALENCE. R AND R1 MAY BE ALL CIS, ALL TRANS, OR SOME MAY BE CIS AND THE REMAINING TRANS. THE AMINO GROUP ATTACHED TO THE CARBON ATOM IN THE 1-POSITION IN THE CYCLOALKYL RING CAN ALSO BE CIS OR TRANS. THE 2-CYCLOALKYLAMINO-OXAZOLINES ARE USEFUL AS LOCAL ANESTHETICS, SEDATIVES, VASO-CONSTRICTORS, BLOOD PRESSURE DEPRESSANTS AND THEY ALSO EXHIBIT AN INHIBITORY EFFECT ON THE SECRETION OF GASTRIC FLUID THEREBY MAKING THEM VALUABLE FOR TREATING HYPERTONIA AND ULCERS. BY VIRTUE OF THEIR BLOOD SUGAR INCREASING EFFECT, THESE COMPOUNDS CAN ALSO BE USED IN HUMANS AND ANIMALS IN THE TREATMENT OF DISEASES WHEREBY INCREASE IN BLOOD SUGAR IS DESIRABLE. THESE COMPOUNDS ARE ADMINISTERED IN THE SAME DOSAGE RANGE AND BY THE SAME ROUTES OF ADMINISTRATION AS COMPOUNDS ALREADY KNOWN TO HAVE THE ABOVE SPECIFIED EFFECTS AND PROPERTIES. THE ASYMMETRICAL 2-CYCLOALKYLAMINO-OXAZOLINES OF THE PRESENT INVENTION EXIST IN RACEMIC FORM AND AS IS KNOWN SUCH RACEMATES CAN BE RESOLVED INTO THEIR OPTICAL ISOMERS.
HO-CH2-CH2-NH-CO-NH-CH WHEREIN R, R1 AND N ARE AS ABOVE DEFINED, AND IN WHICH THE CYCLOALKYL MOIETY MAY CONTAIN A DOUBLE BOND, WITH THE PROVISO THAT IF THERE IS A DOUBLE BOND, SUCH IS NOT IN THE A,B-POSITION, WITH ETHANOLAMINE IN ORGANIC SOLVENTS OR IN WATER AND, IF DESIRED, WITH THE ADDITION OF A BASE OR THEY MAY BE PREPARED BY CYCLIZING REACTIVE ESTERS OF NCYCLOALKYL-N''-B-HYDROXYETHYL-UREAS OF THE FORMULA: