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Class 549/345 - Bicyclo ring system having the spiro hetero ring as one of the cyclos (e.g., griseofulvin, etc.)


Subclass of Class 549 - Organic compounds -- part of the class 532-570 series
Definition: Compounds in which the spiro hetero ring is one of the cyclos
No. of patents: 104
Last issue date: 09/29/2009


1      
NumberTitleIssue Date
75954093,4-diamino-3-cyclobutene-1,2-dione derivatives as potassium channel openers
The present invention is directed to novel 3,4-diamino-3-cyclobutene-1,2-dione derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders related to potassium channel. ...
09/29/2009
7323577Process for producing benzofuran derivative
A novel process for efficiently and easily producing a compound represented by the formula: wherein ring A is a benzene ring that may be optionally further substituted in addition to the group represented by W, o...
01/29/2008
7102465Frequency discrete LC filter bank
An inductive (“L”)-capacitive (“C”) filter bank has application for use in a television receiver. The LC filter includes inductors configured in at least one inductive (“L”) bank, and capacitors configured in at least one capacitive (“C”) bank. The i...
09/05/2006
6921774Compounds and their use as glycine transport inhibitors
The invention provides novel compounds of the formula I below: wherein the meaning of each substituent is defined in the application. The compounds are useful as inhibitors of the glycine transporter and useful in the ...
07/26/2005
6716987Derivatives of benzofuran or benzodioxazole compounds
An oxygen-containing heterocyclic compound represented by following Formula (I): wherein R1 and R2 independently represent hydrogen, lower alkyl, cyano, —(CH2)n—E1
04/06/2004
6683709Photochromic pyran compounds
Photochromic pyran compounds and their use in synthetic resin objects of all types, especially for ophthalmic applications, particularly spiro compounds having a fluorene structure derived from naphthopyrans, which are known as spirofluorenopyrans. By int...
01/27/2004
6602901Compounds useful in the treatment of conditions mediated by peroxisome proliferator-activated receptors (PPAR)
The present invention relates to compounds of formula (I) ##STR1## wherein R1, R2, R3, R4, R5, R6, R7, R8, Ar, X, Q, A, Y and Z are as defined in the specification. These ...
08/05/2003
6514996Derivatives of benzofuran or benzodioxole
An oxygen-containing heterocyclic compound represented by following Formula (I): ##STR1## wherein R1 and R2 independently represent hydrogen, lower alkyl, cyano, --(CH2)n --E1 --CO--G1 (whe...
02/04/2003
6331625Photochromic spirofluorenopyran compounds
Photochromic spirofluorenopyran compounds corresponding to the general formula (I): ##STR1## in which B, B', R1 to R4 and G have the meanings defined herein. The compounds of the invention are useful in the production of photoch...
12/18/2001
6225466Photochromic spirofluorenopyran compounds
Photochromic spirofluorenopyran compounds corresponding to the general formula (I): ##STR1## in which B, B', R1 to R4 and G have the meanings defined herein. The compounds of the invention are useful in the production of photoch...
05/01/2001
6133279Therapeutic agents for renal diseases and organ preservatives
Herein disclosed are therapeutic agents for renal diseases and organ preservatives containing a compound represented by the general formula (1): ##STR1## wherein X represents an oxygen atom or a group represented by the general formula (2): ...
10/17/2000
6121274Dihydrobenzofurane
The invention concerns componuds of formula (I), in which R1, R2, R3 and R4 have the meanings given in the description. The compounds are novel, effective PDE-inhibitors....
09/19/2000
6054475Substituted dihydrobenzofuran-based phosphodiesterase 4 inhibitors useful for treating airway disorders
Compounds of formula (I) ##STR1## and the salts of these compounds, are efficacious PDE (phosphodiesterase) inhibitors....
04/25/2000
5902824Phenyldihydrobenzofuranes
Compounds of formula I are selective cyclic nucleotide phosphodiesterase (PDE) inhibitors (namely of type IV). They and pharmaceutical compositions in which they are active ingredients are useful as bronchial therapeutics, for elimination of erectile dysf...
05/11/1999
5882881Inhibition of cyst formation by cytoskeletal specific drugs
The invention provides a method of producing a culture of polycystic kidney cells which form cysts in vitro. A cell culture of polycystic kidney cells is also provided. A method for screening an agent in vitro to determine the effectiveness of the agent i...
03/16/1999
5877191Phenyl spiroethercycloalkyl tachykinin receptor antagonists
The present invention is directed to certain novel compounds represented by structural formula I: ##STR1## or a pharmaceutically acceptable salt thereof, wherein R3, R6, R7, R8, R11, R12
03/02/1999
5854036Sesquiteterpenic dervatives
The present invention concerns novel compounds obtained by fermenting a microorganism of the genus Memnonoiella or Stachybotrys, which compounds are inhibitors of the enzyme inositol monophosphatase (EC 3.1.3.25). The present invention also relates to the...
12/29/1998
5808109Compounds that inhibit complement and/or suppress immune activity
The present invention is directed to compounds which suppress immune responses and/or selectively inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain...
09/15/1998
5789189Inhibition of cyst formation by cytoskeletal specific drugs
The invention provides a method of producing a culture of polycystic kidney cells which form cysts in vitro. A cell culture of polycystic kidney cells is also provided. A method for screening an agent in vitro to determine the effectiveness of the agent i...
08/04/1998
5686471Dihydrobenzofuran and related compounds useful as anti-inflammatory agents
A compound having the structure: ##STR1## wherein (a) n is from about 1 to about 3; (b) X is selected from the group consisiting of O, S, SO, or SO2 ; (c) Y is independently hydrogen or straight, branched or cyclic alkyl or aralkyl having from ...
11/11/1997
5684041Dihydrobenzofuran and related compounds useful as anti-inflammatory agents
A compound having the structure: ##STR1## wherein (a) n is from 1 to about 3; (b) X is selected from the group consisiting of O, S, SO, or SO2 ; (c) Y is independently hydrogen or straight, branched or cyclic alkyl having from 1 to about 4 carb...
11/04/1997
5684002Dihydorbenzofuran and related compounds useful as anti-inflammatory agents
A compound having the structure: ##STR1## wherein (a) W is --C(X')--NRR' or --NR--C(X')R'; (b) X and X' are independently O or S; (c) each Y is independently hydrogen or straight, branched or cyclic alkanyl having from 1 to about 3 carbon atoms, or the tw...
11/04/1997
5684031Dihydrobenzofuran and related compounds useful as anti-inflammatory agents
A compound having the structure: ##STR1## wherein (a) n is from 1 to about 3; (b) X is selected from the group consisting of O, S, SO, or SO2 ; (c) Y is independently hydrogen or straight, branched or cyclic alkyl having from 1 to about 4 ...
11/04/1997
5672620Dihydrobenzofuran and related compounds useful as anti-inflammatory agents
A compound having the structure: ##STR1## wherein (a) n is from 1 to about 3; (b) X is selected from the group consisting of O, S, SO, or SO2 ; (c) Y is independently hydrogen or straight, branched or cyclic alkyl having from 1 to about 4 carbo...
09/30/1997
56633734-alkoxy-2, 6-di-t-butylphenol derivatives
Compounds represented by the general formula (I), as well as intermediates for the synthesis of thereof: ##STR1## where R1 is a hydrogen atom or an acyl group; R2 is a lower alkyl group; R3 is a hydrogen atom or a low...
09/02/1997
5656661Dihydrobenzofuran and related compounds useful as anti-inflammatory agents
A compound having the structure: ##STR1## wherein (a) X is oxygen or sulfur; (b) each Y is independently hydrogen or unsubstituted straight, branched or cyclic alkanyl having from 1 to about 3 carbon atoms,. or the two Y's are bonded to form an alkan...
08/12/1997
5656659Compounds which inhibit complement and/or suppress immune activity
The present invention is directed to compounds which suppress immune responses and/or selectivly inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain ...
08/12/1997
5637709Photochromatic substances
Polychromatic compounds of pyrans having a substituted adamantane or a polycyclic ring system, with the exception of adamantane, in the 2-position of the pyran ring, having the structure ##STR1## whereby the residues R1 -R4 are ...
06/10/1997
5612370Phenylglycine and phenylalaninen amido benzopyran derivatives
Compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof wherein a, b and d are all carbon atoms or one of a, b and d is a nitrogen atom or --N(O)-- and the others are carbon atoms; Y is a single bond, --CH2 --, ...
03/18/1997
5536833Process for the preparation of intermediates useful in the preparation of pyranyl cyanoguanidine derivatives
A process for preparing compounds of the formula ##STR1## where a, b, c, R1, R2, and R3 are as defined herein including the step of alkylating a phenol of formula ##STR2## with an acetylene of formula ##STR3...
07/16/1996
5506247Compounds that inhibit complement and/or suppress immune activity
The present invention is directed to compounds which suppress immune responses and/or selectively inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain...
04/09/1996
5453421Aryl and heterocyclic substituted propenamide derivatives
Novel compounds useful, for example, for the treatment of ischemic conditions and arrhythmia are disclosed. The compounds have the formula ##STR1## wherein X is oxygen or sulfur and the R groups are as defined herein....
09/26/1995
5418254Substituted cyclopentadienyl compounds for the treatment of inflammation
A class of 2,3-substituted cyclopenta-2,4-dienyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula II: ##STR1## wherein each of R1 and R...
05/23/1995
5403846Spirocycles
Compounds of the general formula: ##STR1## or a pharmaceutically acceptable salt, hydrate or crystal form enantiomer, diastereomer or mixtures thereof are Class III antiarrhythmic agents....
04/04/1995
5401767Compounds which inhibit complement and/or suppress immune activity
The present invention is directed to compounds which suppress immune responses and/or selectively inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain...
03/28/1995
5366986Compounds which inhibit complement and/or suppress immune activity
The present invention is directed to compounds which suppress immune responses and/or selectively inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain...
11/22/1994
5276168Benzopyran derivatives and heterocyclic analogs thereof as antiischemic agents
A new method for the treatment of ischemic conditions and arrhythmia is disclosed. The method uses compounds of the formula ##STR1## wherein A can be --CH2 --, --O--, --NR9 --, --S--, --SO--, --SO2 --; X can be oxygen...
01/04/1994
5273998Process for making an optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compound
The present invention provides an industrially valuable method for preparing an optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran compound which is useful as a starting material for an optically active benzopyran compound with antihypertensive, coron...
12/28/1993
5232944Chroman derivatives
Novel chroman derivatives of the formula I ##STR1## in which X is O or NR11, Z is CH2, O, S or CHHal, R1 and R5 are each A, R2 is H or A, R1 and R2 together are also alkylene having 3...
08/03/1993
5194637Method and apparatus for synthesis of highly isomerically pure stereoisomers of glycidol derivatives
Methods are provided for producing isomerically enriched camphorsulfonates, and in particular a diastereomerically enriched glycidyl camphorsulfonate by bromide-casylate exchange between an alkyl casylate and the bromide analog of the desired casylate, fo...
03/16/1993
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