.

Pharmaceutical Business Intelligence

  • Anticipate P&T budget requirements
  • Evaluate market entry opportunities
  • Find generic sources and suppliers
  • Predict branded drug patent expiration

► Plans and Pricing

Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

DrugPatentWatch Database Preview

Details for Patent: 4,935,437

« Back to Dashboard

Summary for Patent: 4,935,437

Title: (Substituted aralkyl) heterocyclic compounds
Abstract:A (substituted-aralkyl)heterocyclic compound of the formula I ##STR1## wherein R.sup.1 is an azido, carbamoyl, cyano, formyl, hydroxy or nitro radical, a 1-6C 1-hydroxyalkyl, alkoxy, alkylcarbamoyl, alkylthio, alkylsulphinyl or alkylsulphonyl radical, a 2-cyanoethyl radical, optionally bearing one to four 1-6C alkyl substituents, or a 2-6C alkanoyl, halogenoalkanoyl, alkanoyloxy, alkanoylamino, dialkylcarbamoyl or alkoxycarbonyl radical; R.sup.2 and R.sup.3, which may be the same or different, are each a hydrogen atom, a 1-6C alkyl, dueterioalkyl or halogenoalkyl radical, or a phenyl or phenyl(1-6C alkyl) radical, in each of which the phenyl may optionally bear one or more substituents; or R.sup.2 and R.sup.3, together with the carbon atom to which they are attached, may form a 3- to 6-membered ring; or R.sup.1 R.sup.2 R.sup.3 C- is a 1,1-dicyanoethyl or trifluoromethylsulphonyl radical; R.sup.4 is a hydrogen or halogen atom, a cyano or nitro radical or a 1-6C alkyl or halogenoalkyl radical; R.sup.5 has any of the values defined above for the group R.sup.1 R.sup.2 R.sup.3 C but is not necessarily the same as R.sup.1 R.sup.2 R.sup.3 C, or has any of the values defined above for R.sup.4 but is not necesarily the same as R.sup.4, or is a carbamoyl, 1-pyrrolidinyl-carbonyl, piperidinocarbonyl, morpholinocarbonyl or nitro radical, a 1-6C alkoxy or halogenoalkoxy radical or a 2-6C alkanoyl or alkoxy-carbonyl radical; A is a methylene or ethylene radical optionally bearing one or more substituents selected from deuterium and halogen atoms, carbamoyl, cyano and hydroxy radicals, 1-6C alkyl and alkoxy radicals, and 2-6C alkanoyloxy radicals provided that when A is linked to R.sup.6 through a nitrogen atom thereof, it may not bear a hydroxy, alkoxy or alkanoyloxy substituent on the carbon atom adjacent to such nitrogen atoms; and R.sup.6 is a 1H-1,2,4-triazol-1-yl, 4H-1,2,4-triazol-4-yl, 1H-imidazol-1-yl, 5-cyano-1H-imidazol-1-yl, 3-pyridyl or 5-pyrimidinyl radical, or a 1H-imidazol-1-yl radical, bearing at the 5-position thereof a 1-6C alkyl substituent which is itself optionally substituted by one or more carbamoyl, cyano, hydroxy or 2-6C alkoxycarbonyl radicals; and provided that when R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are hydrogen, A is a methylene radical and R.sup.6 is a 3-pyridyl radical, R.sup.1 is not a cyano, hydroxy or hydroxymethyl radical, and when R.sup.1 is a hydroxy radical, R.sup.3, R.sup.4 and R.sup.5 are hydrogen, A is a methylene radical and R.sup.6 is 3-pyridyl, R.sup.2 is not a methyl or a 2-chloro-1-methylethyl radical, and provided that when R.sup.1 is a methoxycarbonyl radical, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are hydrogen and A is a methylene radical, R.sub.1 is not a 1H-imidazol-1-yl radical; and the pharmaceutically acceptable acid addition salts thereof.
Inventor(s): Edwards; Philip N. (Bramhall, GB2), Large; Michael S. (Stoke-on-Trent, GB2)
Assignee: Imperial Chemical Industries plc (London, GB2)
Application Number:07/204,743
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;

No matches for this query

Foreign Priority and PCT Information for Patent: 4,935,437

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8714013Jun 16, 1987

International Patent Family for Patent: 4,935,437

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria113277► subscribe
Australia1691188► subscribe
Australia605872► subscribe
This preview shows a limited data set
Subscribe for full access, or try a Trial

The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

Export unavailable in trial.
Subscribe for complete access.

For more information try a trial or see the database preview and plans and pricing

How are People Using DrugPatentWatch?

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

`abc