WO2006064296A1 - Process for the preparation of (e)-n,n-diethyl-2-cyano-3(3,4-dihydroxy-5-nitro-phenyl)-acrylamide in stable polymorphic form and intermediates of the process - Google Patents

Process for the preparation of (e)-n,n-diethyl-2-cyano-3(3,4-dihydroxy-5-nitro-phenyl)-acrylamide in stable polymorphic form and intermediates of the process Download PDF

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Publication number
WO2006064296A1
WO2006064296A1 PCT/HU2005/000131 HU2005000131W WO2006064296A1 WO 2006064296 A1 WO2006064296 A1 WO 2006064296A1 HU 2005000131 W HU2005000131 W HU 2005000131W WO 2006064296 A1 WO2006064296 A1 WO 2006064296A1
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WO
WIPO (PCT)
Prior art keywords
diethyl
formula
cyano
acrylamide
hydroxy
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Application number
PCT/HU2005/000131
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English (en)
French (fr)
Inventor
Zoltan Cziaky
Original Assignee
Alkaloida Kutato Es Fejlesztö Kft
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Application filed by Alkaloida Kutato Es Fejlesztö Kft filed Critical Alkaloida Kutato Es Fejlesztö Kft
Publication of WO2006064296A1 publication Critical patent/WO2006064296A1/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00Preparation of carboxylic acid nitriles
    • C07C253/30Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
PCT/HU2005/000131 2004-12-15 2005-12-13 Process for the preparation of (e)-n,n-diethyl-2-cyano-3(3,4-dihydroxy-5-nitro-phenyl)-acrylamide in stable polymorphic form and intermediates of the process WO2006064296A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU0402573A HUP0402573A2 (en) 2004-12-15 2004-12-15 Process for producing stable polymorph form of (e)-n,n-diethyl-3-cyano-3-(3,4-dihydroxi-5-nitrophenyl)-acrylamide and the intermediates of the process
HUP0402573 2004-12-15

Publications (1)

Publication Number Publication Date
WO2006064296A1 true WO2006064296A1 (en) 2006-06-22

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PCT/HU2005/000131 WO2006064296A1 (en) 2004-12-15 2005-12-13 Process for the preparation of (e)-n,n-diethyl-2-cyano-3(3,4-dihydroxy-5-nitro-phenyl)-acrylamide in stable polymorphic form and intermediates of the process

Country Status (2)

Country Link
HU (1) HUP0402573A2 (ja)
WO (1) WO2006064296A1 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007077572A1 (en) * 2006-01-02 2007-07-12 Actavis Group Ptc Ehf A process for the preparation of entacapone form-a
WO2008007093A1 (en) * 2006-07-12 2008-01-17 Pliva Hrvatska D.O.O. Process and product
EP1935873A1 (en) 2006-12-19 2008-06-25 Dipharma Francis S.r.l. A process for the preparation of entacapone
EP2251323A1 (en) 2009-05-14 2010-11-17 F.I.S. Fabbrica Italiana Sintetici S.p.A. Method for the purification of entacapone
WO2011008675A2 (en) * 2009-07-15 2011-01-20 Chadeayne Andrew R Catecholamine compounds, compositions, and formulations, and methods of using the same
WO2013149566A1 (en) * 2012-04-01 2013-10-10 Sunshine Lake Pharma Co., Ltd. Process for the preparation of entacapone and its intermediate thereof
CN105061259A (zh) * 2015-08-25 2015-11-18 重庆植恩药业有限公司 一种恩他卡朋a型晶的制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5446194A (en) * 1986-11-28 1995-08-29 Orion-Yhtyma Oy Pharmacologically active catechol derivatives
WO2005063693A1 (en) * 2003-12-29 2005-07-14 Suven Life Sciences Ltd Improved process for the preparation of entacapone

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5446194A (en) * 1986-11-28 1995-08-29 Orion-Yhtyma Oy Pharmacologically active catechol derivatives
WO2005063693A1 (en) * 2003-12-29 2005-07-14 Suven Life Sciences Ltd Improved process for the preparation of entacapone

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WIKBERG ET AL.: "Identification of Major Metabolites of the Catechol-O-Methyl Transferase Inhibitor Entacapone in Rats and Humans", DRUG METABOLISM AND DISPOSITION , 21(1), 81-92 CODEN: DMDSAI; ISSN: 0090-9556, vol. 21, no. 1, 1993, pages 81 - 92, XP009064899 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007077572A1 (en) * 2006-01-02 2007-07-12 Actavis Group Ptc Ehf A process for the preparation of entacapone form-a
WO2008007093A1 (en) * 2006-07-12 2008-01-17 Pliva Hrvatska D.O.O. Process and product
EP1935873A1 (en) 2006-12-19 2008-06-25 Dipharma Francis S.r.l. A process for the preparation of entacapone
US7750177B2 (en) 2006-12-19 2010-07-06 Dipharma Francis S.R.L. Process for the preparation of entacapone
EP2251323A1 (en) 2009-05-14 2010-11-17 F.I.S. Fabbrica Italiana Sintetici S.p.A. Method for the purification of entacapone
WO2011008675A2 (en) * 2009-07-15 2011-01-20 Chadeayne Andrew R Catecholamine compounds, compositions, and formulations, and methods of using the same
WO2011008675A3 (en) * 2009-07-15 2011-04-28 Chadeayne Andrew R Catecholamine compounds, compositions, and formulations, and methods of using the same
WO2013149566A1 (en) * 2012-04-01 2013-10-10 Sunshine Lake Pharma Co., Ltd. Process for the preparation of entacapone and its intermediate thereof
CN105061259A (zh) * 2015-08-25 2015-11-18 重庆植恩药业有限公司 一种恩他卡朋a型晶的制备方法

Also Published As

Publication number Publication date
HU0402573D0 (en) 2005-02-28
HUP0402573A2 (en) 2006-07-28

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