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Class 544/230 - Spiro


Subclass of Class 544 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which contain a spiro ring system.
No. of patents: 340
Last issue date: 10/04/2011


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NumberTitleIssue Date
41917651-Aryloxy-2-hydroxy-3-aminopropanes
Compounds of formula I ##STR1## wherein R1 and R1' are identical or different and represent hydrogen, an alkyl radical or alkoxy radical having 1-4 carbon atoms, the allyl group, a halogen atom or the nitro group, R2 ...
03/04/1980
4183946Substituted 2-vinyl-chromones and process for their preparation
Substituted 2-vinyl chromones are disclosed, wherein the chromone ring has an alkyl or alkenyl substituent at the 3-position, and a styryl substituent at the 2-position. The compounds exhibit anti-allergy activity and can be used to treat allergic conditi...
01/15/1980
4172093Pharmacodynamically active indan derivatives
The present invention relates to new pharmacodynamically active compounds of the general structure ##STR1## as well as the corresponding amine oxides, quarternary ammonium compounds and salts with physiologically acceptable acids. In formula I R...
10/23/1979
4161589Spirodipyrans
Spirodipyrans of the formula ##STR1## where A is the radical of a fused benzene ring or 2,1-naphthalene ring, the rings being unsubstituted or substituted by alkyl, alkoxy, nitro, chlorine, bromine or carbalkoxy, R1 is alkyl, phenyl, subst...
07/17/1979
41489005:6-Benzo-γ-pyrone derivatives and process for their preparation
Chromone compounds carrying a pyridyl substituent at the 2-position are disclosed, such as, for instance, 6-carboxy-2-(2'-pyridyl)-chromone. The disclosed compounds are useful in the treatment of allergies....
04/10/1979
41103487,7'-Diamino derivatives of 2,2'-spirodibenzopyranes
Dye intermediates of the formula ##STR1## where R1 is hydrogen, alkyl of 1 to 12 carbon atoms, phenyl which is unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, methoxy, ethoxy, chlorine or bromine, or phenylalkyl of 7 to 10 ca...
08/29/1978
4052398Diazarhodamine-lactones, their manufacture and their use as dye intermediates for copying processes
New diazarhodamine-lactones of the formula ##STR1## where R1 is hydrogen or alkyl of 1 to 4 carbon atoms, R2 is alkyl of 1 to 4 carbon atoms, unsubstituted phenyl or phenyl substituted by one or two alkyls of 1 to 3 carbon atoms...
10/04/1977
4049658N'-substituted derivatives of 4'-(N-piperazinylmethyl) spiro dibenzocycloheptadi- (or tri-) ene-5, 2'-dioxolane (1',3') their method of preparation and their application in therapeutics
Compounds of the formula ##STR1## wherein Z is --CH2 CH2 -- or --CH.dbd.CH--, and R is methyl, ethoxycarbonylmethyl or ##STR2## wherein ##STR3## is methylamino, n-propylamino, isopropylamino, dimethylamino, d...
09/20/1977
4049660N-substituted derivatives of 4 (N-piperazinylmethyl) spiro dibenzocycloheptadi- (or tri-) ene-5, 2-dioxolane (1,3) their method of preparation and their application in therapeutics
Compounds of the formula ##STR1## wherein Z is --CH2 CH2 -- or --CH.dbd.CH--, and R is methyl, ethoxycarbonylmethyl or ##STR2## wherein ##STR3## is methylamino, n-propylamino, isopropylamino, dimethylamino, d...
09/20/1977
4048164N'-substituted derivatives of 4'-(N-piperazinylmethyl)spiro dibenzocycloheptadi- (or tri-) ene-5,2'-dioxolane(1',3')
Compounds of the formula ##STR1## wherein Z is --CH2 CH2 -- or --CH=CH--, and R is methyl, ethoxycarbonylmethyl or ##STR2## wherein ##STR3## is methylamino, n-propylamino, isopropylamino, dimethylamino, di(n-...
09/13/1977
40312241,3-Dihydro-heteroarylspiro (isobenzofuran)s
Novel 1,3-dihydro-heteroarylspiro[isobenzofuran]s and methods of preparing same are described. These compounds are useful as antidepressants and tranquilizers....
06/21/1977
4028334Piperidine derivatives
New piperidine derivatives of 1,3-pyrimidine and 1,3,5-triazine are used as stabilizers for organic materials, especially for polymers....
06/07/1977
40268951,3-Benzodioxol derivatives
1,3-Benzodioxol derivatives, the new compounds, represented by the formula: ##STR1## and the pharmacologically acceptable acid-addition salts thereof are provided, wherein R1 and R2 are lower alkyls or the both together may form...
05/31/1977
39818641,3-Benzodioxol derivatives
1,3-Benzodioxol derivatives, the new compounds, represented by the formula: ##SPC1## And the pharmacologically acceptable acid-addition salts thereof are provided, wherein R1 and R2 are lower alkyls or the both together may form a di...
09/21/1976
3978055Arylamino pyrimidinic derivatives
Compounds of the formula ##SPC1## Wherein Ar is phenyl or phenyl substituted by one or more halogens, by a trifluoromethyl or a methylenedioxy, by one or more methoxy, by an alkyl having one to 4 carbon atoms or by a dimethylamino, And R is ##EQU1## ...
08/31/1976
3969101Agent for controlling plant growth
2-Alkylthio-4,6-bis(subst.amino)-5-nitropyrimidines are agents effectively influencing plant metabolism. They can be employed as preemergence herbicides....
07/13/1976
39637196-Spirocycloalkylamino 5-nitropyrimidines
Novel pteridines of formula (I), ##SPC1## wherein R is a lower alkyl group, optionally substituted with a hydroxy group and R1 and R2 are the same or different and each is a lower alkyl group having together at least 3 carbon atoms o...
06/15/1976
39519781,3-Disubstituted 3-aroylpropanes and process for the preparation thereof
1,3-Disubstituted-3-aroylpropanes of the formula: ##EQU1## and their salts, in which Ar represents an aryl residue unsubstituted or substituted by halogen, polyhalogeno alkyl or lower alkoxy; R1 represents an hydroxy, acyloxy, carbamoyloxy...
04/20/1976
3947451Derivatives of substituted isoquinoline 1,3-diones
New pharmacodynamically active nitrogen containing heterocyclic compounds of the general formula ##SPC1## As well as methods of preparing the same; and Pharmacodynamical compositions containing the same, preferrably for treating psychiatric and psychosoma...
03/30/1976
3931182Lactones of the diazaxanthene series, their production and their use as dye-forming components for copying methods
Lactones of the diazaxanthene series, their manufacture from a benzoylbenzoic acid and a pyrimidine, and their use as dye-forming components in the red range for pressure-sensitive recording material....
01/06/1976
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