US 9,434,694 B2Granted

Method for preparation of medetomidine with chloroacetone

AssigneeLonza Ltd.

InventorsFlorencio Zaragoza Doerwald, Anna Kulesza, Stephan Elzner, Robert Bujok, Zbigniew Wrobel, Krzysztof Wojciechowski

Life of this patent

Estimating the term…

Abstract

The invention discloses a method for the preparation of medetomidine starting from 1-bromo 2,3-dimethylbenzene and chloroacetone.

Claims2

Dependent claims

A compound of formula (XXIII),

wherein
R2 is 4-tolyl, phenyl, 4-acetamidophenyl, methyl or trifluoromethyl.

Dependencies are inferred from the claim text.

Facts

Application: 14/813,681Filed 30 Jul 2015 · division
Priority: EP 1217410228 Jun 2012
Published: US 2015/0099889 A126 Nov 2015
Granted: 6 Sep 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

C07D 233/58
With only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms: with only hydrogen atoms or…
C07D 233/56
Having two double bonds between ring members or between ring members and non-ring members: with only hydrogen atoms or radicals containing only…
C07D 263/16
Having one double bond between ring members or between a ring member and a non-ring member: with hetero atoms or with carbon atoms having three…
C07D
Heterocyclic compounds

Family

Application61/665,510Us provisional application · filed 28 Jun 2012
PCT/EP2012/072798Parent of this division · filed 15 Nov 2012
US 2015/0336909 A1Pre-grant publication · published 26 Nov 2015
Application14/385,797Parent of this division
US 9,156,793 B2Parent of this division
US 2015/0099889 A1Published application
US 9,434,694 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key

patentgrep

Loading patent…

patentgrepSearch patents

Back to results