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4293699 |
Pharmacologically active guanidine compounds
The compounds are substituted thioalkyl-, aminoalkyl- and oxyalkyl-guanidines which are inhibitors of histamine activity.
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4281118 |
Aminoalkylsulfides, aminoalkylsulfoxides, and aminoalkylsulfones
Novel aminoalkylsulfides, aminoalkylsulfoxides and aminoalkylsulfones of the general formula ##STR1## wherein y and z independently represent the integer 0, 1 or 2; a represents the integer 0 or 2;...
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4259439 |
Direct positive silver halide emulsion
A high-contrast direct positive prefogged silver halide emulsion free from coror stain, which contains at least one new dimethinecyanine dye wherein the 3-position of a pyrazolo[1,5-a]pyridine...
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4255573 |
Imidazoindole derivatives and pharmaceutical compositions comprising imidazoindole derivatives
Pharmaceutical composition for chelating excess iron in a mammal and facilitating the removal of excess iron from the mammalian body are disclosed which comprise as active ingredient an...
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4250174 |
3-Substituted imidazo [1,2-A] pyridines
Imidazo pyridines with a carbamate group in the 2-position and a phenylthio, or phenylsulfinyl group in the 6-position are disclosed which also are substituted at the 3-position. The 3-position...
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4242513 |
Lactone compounds containing a heterocyclic radical
Chromogenic compounds of normally colorless form are disclosed having the following structural formula: ##STR1## wherein E represents a six-membered aromatic or heterocyclic ring which may have an...
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4230709 |
Method of treating asthma with alkyl, alkylidene and alkylene hydantoins
Pharmaceutical formulations are described, which comprise a hydantoin of formula (I): ##STR1## wherein R 1 is C 1 -4 alkyl, R 2 is hydrogen or C 1 -4 alkyl; or R 1 and R 2 taken together either...
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4228291 |
Pharmacologically active thiadiazole guanidine compounds
The compounds are substituted thioalkyl-, aminoalkyl- and oxyalkyl-guanidines which are inhibitors of histamine activity.
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4221796 |
Substituted imidazolo-pyridines and method
Imidazolo-pyridine derivatives are provided having the structure ##STR1## wherein R is lower alkyl, lower alkenylalkyl, lower alkynylalkyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl,...
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4186200 |
Novel fused derivatives of 2-pyridones
Novel nitrogen-containing heterocyclic compounds shown by the formula ##STR1## wherein one of R 1 and R 2 represents a lower alkyl group, a phenyl group, a halophenyl group, or a lower...
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4177274 |
Substituted imidazo [1,2-a] pyridines
Certain novel substituted imidazo [1,2-a] pyridines with a substituted amino group at the 2- or 3-position are active anthelmintic agents. The novel compounds are prepared from the appropriate...
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4166851 |
Certain imidazo(1,2a)pyridine derivatives
Novel imidazopyridines, -pyrazines, -pyrimidines and -pyridazines having a 3-amino-2-OR-propoxy substituent, are disclosed. The compounds have β-adrenergic blocking activity.
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4163745 |
Imidazo[1,5-a]-quinolinium and imidazo[1,5-a]-pyridinium compounds
The synthesis of imidazo[1,2-a]pyridinium, imidazo[1,5-a]pyridinium, pyrrolo[1,2-a]pyrazinium, pyrazolo[1,5-a]pyridinium, imidazo[2,1-a]isoquinolinium and imidazo[5,1-a]isoquinolinium quaternary...
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4154835 |
Anthelmintic imidazo [1,2-a] pyridines
Novel substituted imidazo [1,2-a] pyridine compounds are disclosed which have a high degree of anthelmintic activity. The compounds are substituted with a carbamate and a halogenated alkene group....
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4146642 |
Heterocyclic substituted imidazo [1,2-a] pyridines
Certain novel substituted imidazo [1,2-a] pyridines with a substituted amino group at the 2- or 3- position and a heterocyclic moiety on the pyrido portion of the molecule are active anthelmintic...
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4141898 |
Imidazo pyridinium quaternary salts as hypoglycemic agents
The synthesis of imidazo[1,2-a]pyridinium, imidazo[1,5-a]pyridinium, pyrrolo[1,2-a]pyrazinium, pyrazolo[1,5-a]pyridinium, imidazo[2,1-a]isoquinolinium and imidazo[5,1-a]isoquinolinium quaternary...
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4138242 |
Novel 2-aryl-2,3,5,6,7,8-hexahydro-3-thioxoimidazo-[1,5-a-]pyridin-1(BaH)-ones as herbicides
This invention relates to novel 2-aryl-2,3,5,6,7,8-hexahydro-3-thioxoimidazo[1,5-a]pyridin-1
(8aH)-ones and their use as herbicides. These novel compounds may be used for selective weed control in...
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4129567 |
Quaternary salts as hypoglycemic agents
The synthesis of imidazo[1,2-a]pyridinium, imidazo[1,5-a]pyridinium, pyrrolo[1,2-a]pyrazinium, pyrazolo[1,5-a]pyridinium, imidazo[2,1-a]isoquinolinium and imidazo[5,1-a]isoquinolinium quaternary...
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4105767 |
Imidazo [1,2-a] pyridines substituted with a thienyl, thiazolyl, or thiadiazolyl group
Certain novel substituted imidazo [1,2-a] pyridines with a substituted amino group at the 2- or 3- position and a heterocyclic moiety on the pyrido portion of the molecule are active anthelmintic...
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4097483 |
Pyrazolo 1,5-a!pyridines
The present invention provides substituted pyrazolo 1,5-a!pyridine derivatives expressed by a compound of the general formula (I), ##STR1## (wherein: X is hydrogen atom or methyl group; R is...
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4096145 |
Naphtholactam derivatives
Compounds of the formula ##STR1## where A is a heterocyclic group containing a pyridone moiety and R to R 5 are each hydrogen or substituents conventionally encountered in dyes. The compounds are...
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4092321 |
Process for the preparation of imidazo [1,2-a] pyridines
Processes are described for the preparation of 2-(methoxycarbonylamino)-6-(phenylsulfinyl) imidazo [1,2-a] pyridine, which is an active anthelmintic agent. The process involves the treatment of a...
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4058529 |
Polycyclic amino derivatives of pyrrolidone and piperidone
A series of compounds of the formula ##STR1## have been found to exhibit useful pharmacological properties, e.g. antiinflammatory and analgetic activity.
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4044015 |
Imidazopyridinium compounds as hypoglycemic agents
The synthesis of imidazo[1,2-a]pyridinium, imidazo[1,5-a]pyridinium, pyrrolo[1,2-a]pyrazinium, pyrazolo[1,5-a]pyridinium, imidazo[2,1-a]isoquinolinium and imidazo[5,1-a]isoquinolinium quaternary...
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3978071 |
Substituted phenylalkanoic acids and derivatives
Substituted phenylalkanoic acids and derivatives thereof of the formula: ##SPC1## Wherein each of R 1 and R 2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; each of X 1 and X 2...
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3969528 |
Hexahydroimidazo[1,5-A]pyridines
The invention relates to bases of the formula ##SPC1## And their acid addition salts with pharmaceutically acceptable acids. In the formula R 1 represents phenyl or phenyl substituted by one or...
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3958976 |
2-Aryl-5,6,7,8-tetrahydroimidazo[1,5a]-pyridine-1,3(2H,8aH)-diones as herbicides
This invention relates to novel 2-Aryl-5,6,7,8-tetrahydroimidazo[1,5a]-pyridine-1,3(2H,8aH)-
diones and their use as herbicides. These novel compounds may be used for selective weed control in...
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3951994 |
Tetrahydroindolizine derivatives
1,4-Dihydropyridines bearing carbonyl functions in the 3- and 5-positions, being optionally substituted by lower alkyl in the 6-position, being substituted in the 4-position by lower alkyl, phenyl,...
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3948923 |
Pentahydroqunolizine derivatives
1,4-Dihydropyridines bearing carbonyl functions in the 3- and 5-positions, being optionally substituted by lower alkyl in the 6-position, being substituted in the 4-position by lower alkyl, phenyl,...
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3936435 |
Cationic heterocyclic-azo-heterocyclic compounds from 5-aminoimidazo-(1,2-A)pyridines
Dyestuff having the general formula ##SPC1## Wherein A represents ##SPC2## Wherein Q is ##SPC3## Ar is phenyl or phenyl substituted with chlorine, bromine, lower alkyl or lower alkoxy; R is...
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3935220 |
Tetrahydroimidazolo[1,2-a]pyridine derivatives
1,4-Dihydropyridines bearing carbonyl functions in the 3- and 5-positions, being optionally substituted by lower alkyl in the 6-position, being substituted in the 4-position by lower alkyl, phenyl,...
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3928311 |
Novel quaternized heterocyclic monoazo dyes
The quaternized heterocyclic monoazo dyes having as a diazo component a nitrogen containing cyclic group linked through the azo bridge to an imidazo heterocyclic coupler prepared by quaternization...
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3868372 |
Organomercapto-substituted polyhydro imidazo[1,5-a]pyridenes and pyride[1,2-c]pyrimidines
The compounds are tetracyclic quinazolin-ones of the class of polyhydro-pyrido[1',2':3,4]-imidazo[2,1-b] or polyhydro-pyrido[1',2':3,4]-pyrimido[2,1-b] quinazolin-11-ones which are...
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3718656 |
PYRAZOLO(1.5-A) PYRIDINE DERIVATIVES
The present invention provides 2-substituted-3-nitrosopyrazolo[1,5-a]pyridines expressed by the general formula, ##SPC1## Where X stands for a halogen atom, a lower alkoxy, hydroxy or acetoxy...
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3615639 |
DIRECT POSITIVE SILVER HALIDE EMULSIONS CONTAINING DYES AS ELECTRON ACCEPTORS AND SPECTRAL SENSITIZERS
Novel polymethine dyes are provided which feature an imidazole ring joined at the carbon atom in the 5-position of the imidazole ring to a dimethine linkage, the imidazole ring having fused to the...
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3609155 |
1-PARA-CHLOROPHENYL-1,5,6,7,8,8 -HEXAHYDROIMIDAZO[1,5- ]PYRIDINES AND INTERMEDIATES THEREFOR
This disclosure pertains to novel 1-substituted 2-unsubstituted imidazopyridines, for example 1-p-chlorophenyl-3-loweralkylthio-1,5,6,7,8,8a-hexahydroimid
azo[1,5-a]pyri dene. These compounds are...
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3539582 |
IMIDAZO-(1,2-A)PYRIDINE-2,3-DICARBOXYLATES
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3526626 |
PHENYL SUBSTITUTED BICYCLIC HYDROIMIDAZOLES AND HYDROPYRIDINES
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3515725 |
2,3A-DIAZAHYDRINDANONE AND 3H-PYRIDO-(1,2-C)PYRIMIDIN-3-ONE DERIVATIVES
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3509167 |
CERTAIN 3-NITROIMIDAZO-(1,2-A)PYRIDINES
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3494928 |
1-SUBSTITUTED-3-OXO(OR THIOXO)HEXAHYDRO-IMIDAZO(1,5-A)PYRIDINES
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3494925 |
1 - P - CHLOROPHENYL - 3 - IMINO - 2 - METHYL- 2,3,5,6,7,8 - HEXAHYDROIMIDAZO(1,5 - A)PYRIDINE AND INTERMEDIATES THEREFOR
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3494926 |
1,2 - DISUBSTITUTED - 3 - OXO AND 3 - THIOXO-2,3,5,6,7,8 - HEXAHYDROIMIDAZO(1,5 - A)PYRIDINES AND INTERMEDIATES THEREFOR
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3494927 |
3-LOWERALKYLTHIO IMIDAZOPYRIDINES
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3467662 |
1-PARA-CHLOROPHENYL-3-HYDRAZINO - 1,5,6,7,8,8A-HEXAHYDROIMIDAZO(1,5-A)PYRIDINE AND PROCESS FOR ITS PREPARATION
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3455924 |
DIANISYLIMIDAZOLES
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3454585 |
OCTAHYDROIMIDAZO(1,2-A)PYRIDIN-5-ONES
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3438976 |
1-SULFONYL-3-NORTROPANYL-UREA DERIVATIVES
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3423459 |
ACETANILIDO DERIVATIVES AND METHOD FOR PREPARING SAME
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3334107 |
1, 2-alkylene-imidazolinones-(5)
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