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Last Updated: September 17, 2021

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Details for Patent: 9,206,135

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Which drugs does patent 9,206,135 protect, and when does it expire?

Patent 9,206,135 protects APTIOM and is included in one NDA.

This patent has twenty-eight patent family members in twenty-two countries.

Summary for Patent: 9,206,135
Title:Asymmetric catalytic reduction of oxcarbazepine
Abstract: A process for preparing (S)-(+)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide or (R)-(-)-10,11-dihydro-10-hydroxy-5H-dibenz/b,f/azepine-5-carboxamide, by reduction of oxcarbazepine in the presence of a catalyst and a hydride source is disclosed. The catalyst is prepared from a combination of [RuX.sub.2(L)].sub.2 wherein X is chlorine, bromine or iodine, and L is an aryl or aryl-aliphatic ligand, with a ligand of formula (A) or formula (B): ##STR00001## wherein R.sup.1 is chosen from C.sub.1-6 alkoxy and C.sub.1-6 alkyl, n is a number from 0 to 5, and when n is a number from 2 to 5, R.sup.1 can be the same or different, and R.sup.2 is alkyl, substituted alkyl, aryl, substituted aryl, alkaryl or substituted alkaryl. The hydride source is either NR.sup.3R.sup.4R.sup.5 and formic acid, [R.sup.3R.sup.4R.sup.5NH][OOCH] and optionally formic acid, or [M][OOCH].sub.x and formic acid, wherein R.sup.3, R.sup.4 and R.sup.5 are C.sub.1-6 alkyl, M is an alkali metal or alkaline earth metal and x is 1 or 2. A pH from 6.5 to 8 is maintained during the process.
Inventor(s): Learmonth; David Alexander (Alfena, PT), Grasa; Gabriela Alexandra (Mantua, NJ), Zanotti-Gerosa; Antonio (Cambridge, GB)
Assignee: Bial-Portela & CA, S.A. (S. Mamede do Coronado, PT)
Application Number:13/651,844
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,206,135
Patent Claim Types:
see list of patent claims
Compound; Process; Use;

Drugs Protected by US Patent 9,206,135

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Sunovion Pharms Inc APTIOM eslicarbazepine acetate TABLET;ORAL 022416-001 Nov 8, 2013 AB RX Yes No ⤷  Try it Free ⤷  Try it Free Y ⤷  Try it Free
Sunovion Pharms Inc APTIOM eslicarbazepine acetate TABLET;ORAL 022416-002 Nov 8, 2013 AB RX Yes No ⤷  Try it Free ⤷  Try it Free Y ⤷  Try it Free
Sunovion Pharms Inc APTIOM eslicarbazepine acetate TABLET;ORAL 022416-003 Nov 8, 2013 AB RX Yes No ⤷  Try it Free ⤷  Try it Free Y ⤷  Try it Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 9,206,135

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom0515690.6Jul 29, 2005

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