WO2012010802A1 - Procede de preparation de derives de benzofurane substitues en position 5 - Google Patents
Procede de preparation de derives de benzofurane substitues en position 5 Download PDFInfo
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- WO2012010802A1 WO2012010802A1 PCT/FR2011/051751 FR2011051751W WO2012010802A1 WO 2012010802 A1 WO2012010802 A1 WO 2012010802A1 FR 2011051751 W FR2011051751 W FR 2011051751W WO 2012010802 A1 WO2012010802 A1 WO 2012010802A1
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- 0 Cc(cc1)ccc1O* Chemical compound Cc(cc1)ccc1O* 0.000 description 2
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
- C07D307/80—Radicals substituted by oxygen atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/34—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
- A61K31/343—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide condensed with a carbocyclic ring, e.g. coumaran, bufuralol, befunolol, clobenfurol, amiodarone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/02—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups
- C07C251/04—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C251/10—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of an unsaturated carbon skeleton
- C07C251/16—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of an unsaturated carbon skeleton containing six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/32—Oximes
- C07C251/50—Oximes having oxygen atoms of oxyimino groups bound to carbon atoms of substituted hydrocarbon radicals
- C07C251/60—Oximes having oxygen atoms of oxyimino groups bound to carbon atoms of substituted hydrocarbon radicals of hydrocarbon radicals substituted by carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
Definitions
- the present invention relates, in general, to the preparation of 5-substituted benzofuran derivatives.
- the invention relates to a process for the preparation of 5-substituted benzofuran derivatives of the general formula:
- R represents a nitro group or ester - COOR '
- R' represents a hydrogen atom or an alkyl group
- R1 represents hydrogen or an alkyl group
- R 2 represents hydrogen, a halogen, a hydroxyl group, haloalkyl, alkyl, alkoxy, dialkylaminoalkoxy or dialkylaminoalkyl.
- the invention relates to a process for the preparation of compounds of formula (I) in which R represents a nitro group, these compounds of formula (I) are called 5-nitro-benzofuran derivatives of general formula I ':
- R is nitro
- R 1 is hydrogen or alkyl
- R 2 is hydrogen, halogen, alkyl, alkoxy or dialkylaminoalkoxy.
- the invention relates to a process for the preparation of compounds of formula (I) in which R represents a -COOR 'ester group, these compounds of formula (I) are called 5-substituted benzofuran derivatives of general formula I '':
- R represents an ester -COOR ' wherein R' represents a hydrogen atom or an alkyl group, R1 represents an alkyl group and R 2 represents hydrogen, a hydroxyl, haloalkyl, dialkylaminoalkoxy or dialkylaminoalkyl group.
- R 1 represents in particular a linear or branched C 1 -C 8 alkyl group, in particular a linear or branched C 1 -C 4 alkyl group such as methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl or tert-butyl or a substituted or unsubstituted phenyl group,
- R 2 is in particular chlorine, bromine or iodine or an alkyl group, linear or branched, in Ci-Os in particular a linear or branched C 1 -C 4 alkyl group such as methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl or tert-butyl; a linear or branched C 1 -C 6 alkoxy group, especially a linear or branched C 1 -C 4 alkoxy group such as methoxy, ethoxy, n-propoxy, iso-hydroxy, n-butoxy, sec-butoxy or tert-butoxy; a dialkylaminoalkyl group or else a dialkylaminoalkoxy group in which each linear or branched alkyl group is C 1 -C 8 and the linear or branched alkoxy group is C 1 -C 5 in which each linear or branched alkyl group is C 1 -C 4 such
- R ' is a linear or branched C1-C4 alkyl group such as iso-propyl.
- R 1 is n-butyl and R 2 is 3- (di-n-butylamino) propoxy.
- R 1 is n-butyl and R 2 is 3- (di-n-butylamino) propyl.
- Compound A 2-n-butyl-3- ⁇ 4- [3- (di-n-butylamino) -propoxy] -benzoyl ⁇ -5-nitro-benzofuran (hereinafter referred to as Compound A), a particularly interesting intermediate for preparing dronedarone. According to this method, the following series of reactions can be envisaged:
- Compound A can be synthesized with overall yields of at least 56% starting from 4-hydroxyacetophenone by a combination of steps using 1- [4- [3- (di-n-butylamino) -propoxy] -phenyl ⁇ -1,3-heptanedione rather than 1- (4-hydroxyphenyl) -1,3-heptanedione.
- carboxylate commonly known as celivarone
- its pharmaceutically acceptable salts has been particularly useful especially as antiarrhythmic agent.
- this synthesis route is convergent and it makes it possible to reduce the number of steps. This path is therefore an economically viable alternative.
- This route makes it possible in particular to avoid an organometallic coupling step of the type Sonogashira which uses costly reagents and a Friedel-Craft stage which generates large amounts of aluminum salts.
- the 5-substituted benzofuran derivatives of formula I can be prepared by coupling, in the presence of an acid, the hydroxylamine of formula II:
- R represents a nitro group or ester COOR '
- R' have the same meaning as above with a diketone of general formula III:
- the 5-nitro-benzofuran derivatives of formula I ' can be prepared by coupling in the presence of an acid, O- (4-nitrophenyl) -hydroxylamine of formula II', this compound corresponding to the compound of formula II in which R represents - O2:
- the benzofuran derivatives of formula I '' can be prepared by coupling, in the presence of an acid, the compound of formula II '', this compound corresponding to the compound of formula II in which R represents COOR ', R' being as previously defined:
- the oxime is reacted to form a salt such as hydrochloride.
- the coupling is carried out in the presence of an acid, preferably a weak acid, optionally combined with a strong acid, in general an organic or inorganic acid such as a hydric acid, for example hydrochloric acid.
- an organic or inorganic acid such as a hydric acid, for example hydrochloric acid.
- This acid or mixture of acids may be combined, if appropriate, with an organic or inorganic solvent, for example N, N-dimethylformamide, dimethylsulfoxide, an ether such as tetrahydrofuran, diethyl ether or dioxane, or an alcohol such as than methanol or ethanol.
- the coupling takes place only in an acidic medium that serves both as a reagent and a solvent.
- the weak acid in question is generally chosen from acids whose boiling point is less than 150 ° C., for example formic acid or, preferably, acetic acid.
- this weak acid can be used in solution, for example in water or in an organic or inorganic solvent or preferably alone.
- this weak acid is acetic acid, it preferably corresponds to glacial acetic acid.
- the coupling reaction is usually carried out at room temperature to form the oxime of formula IV.
- This oxime is then cyclized by heating in situ that is, in the very midst of his training.
- the cyclization of this oxime can be carried out ex situ, that is to say separately from its formation medium, and in a solvent such as for example the solvent used during this formation.
- the process of the invention proceeds at a temperature from room temperature to about 150 ° C.
- this process is carried out at room temperature when the acid corresponds to a mixture of strong acid and weak acid but at a higher temperature when the acid corresponds only to a weak acid.
- the reaction temperature will be of the order of 117 ° C-118 ° C.
- the starting compound of formula II can be obtained according to the following reaction scheme:
- Hal represents a halogen, for example chlorine or fluorine, which is reacted in the presence of a basic agent such as an alkali metal hydroxide or an alkali metal alkoxide such as sodium tert-butylate or tert-butoxide.
- potassium butylate in particular potassium tert-butoxide
- an imidate of formula VI in which R 3 represents a linear or branched C 1 -C 4 alkyl group, for example ethyl, and R 4 represents an alkyl group, linear or branched, C 1 -C 4 such as for example methyl, the reaction taking place at room temperature and, preferably, in a polar solvent such as N, N-dimethylformamide to form an oxime of formula VII in which R 3 and R 4 have the same meaning as before.
- This oxime is then treated with a strong acid such as hydrochloric acid to form the compound of formula II in the form of an acid addition salt which is then optionally subjected to the action of a strong base such that Sodium hydroxide, to obtain the compound of formula II in free base form.
- a strong acid such as hydrochloric acid
- a strong base such that Sodium hydroxide
- the starting compound of formula II ' can be obtained according to the following reaction scheme:
- This oxime is then treated with a strong acid such as hydrochloric acid to form the compound of formula II 'in the acid addition salt form which is subjected to then to the action of a strong base such as sodium hydroxide, to obtain the compound of formula II 'in free base form.
- a strong acid such as hydrochloric acid
- a strong base such as sodium hydroxide
- This oxime is then treated with a strong acid such as hydrochloric acid to form the compound of formula II in the form of an acid addition salt which is then optionally subjected to the action of a strong base such that sodium hydroxide, to obtain the compound of formula II '' in free base form.
- a strong acid such as hydrochloric acid
- a strong base such that sodium hydroxide
- the compounds of formula III 'in which R 1 has the same meaning as above and R 2 represents an alkoxy or dialkylaminoalkoxy group are hereinafter referred to as compounds of formula XII. They can be obtained according to the following reaction scheme:
- R 2 ' represents a linear or branched C 1 -C 5 alkyl group, in particular a linear or branched C 1 -C 4 alkyl group such as methyl, ethyl, n-propyl, isopropyl or n-butyl, and is dry.
- each linear or branched alkyl group is C 1 -C 5 in which each linear or branched alkyl group is C 1 -C 4 such as methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl or tert-butyl.
- the compound of formula X is then coupled with an ester of formula XI in which R 1 and R 3 have the same meaning as above, the coupling taking place in the presence of a strong base such as an alkali metal alkoxide and usually in a solvent polar, for example N-methyl-2-pyrrolidinone to form a diketone of formula XII.
- a strong base such as an alkali metal alkoxide and usually in a solvent polar, for example N-methyl-2-pyrrolidinone to form a diketone of formula XII.
- the diketone thus obtained is then isolated directly from its formation medium or, preferably, after treatment with a strong acid such as hydrochloric acid so as to form an acid addition salt, for example the hydrochloride. If necessary, this diketone of formula XII in free base form can be regenerated starting from the acid addition salt thus obtained and this, by treatment of this salt with a basic agent, for example a weak base such as than an alkali metal carbonate or hydrogencarbonate.
- a basic agent for example a weak base such as than an alkali metal carbonate or hydrogencarbonate.
- the compounds of formula III '' in which R 1 has the same meaning as above and R 2 represents an alkoxy or dialkylaminoalkoxy group are hereinafter called compounds of formula XII '. They can be obtained according to the following reaction scheme:
- the compounds of formula XV are then coupled to an amine of formula XVI in which R5 is an alkyl group, especially a C1-C4 alkyl group such as the n-butyl group in the presence of an iodide such as potassium iodide or potassium iodide.
- an iodide such as potassium iodide or potassium iodide.
- sodium iodide in solution in an aprotic polar solvent such as methyl isobutyl ketone (MIBK) to give a compound of formula XVII in which R '2 represents a dialkylaminoalkyl group in which the alkyl group represents a C 1 -C 4 alkyl group such as the n-butyl group.
- the diketone thus obtained is then isolated directly from its formation medium or, preferably, after treatment with a strong acid such as hydrochloric acid so as to form an acid addition salt, for example the hydrochloride. If necessary, this diketone of formula XII in free base form can be regenerated starting from the acid addition salt thus obtained and this, by treatment of this salt with a basic agent, for example a weak base such as than an alkali metal carbonate or hydrogencarbonate.
- a basic agent for example a weak base such as than an alkali metal carbonate or hydrogencarbonate.
- Another subject of the invention relates to derivatives of general formula:
- R 1 ' represents a C 1 -C 4 alkyl group
- R 1 ' has the same meaning as before and R represents a nitro group or -COOR'
- R ' has the same meaning as above, these derivatives being, when Y represents the group XX, in the form of the isomer E, d Z isomer or mixtures of these isomers.
- Another subject of the invention relates to compounds of formula XVIII referred to herein as benzoyloxy derivatives of general formula XVIII ':
- R 1 ' represents a C 1 -C 4 alkyl group
- Another subject of the invention relates to compounds of formula XVIII referred to herein as derivatives of general formula XVIII '':
- R 1 ' represents a C 1 -C 4 alkyl group, or b) a group of the general formula
- R 1 ', R' has the same meaning as above, these derivatives being, when Y represents the group XX '', in the form of an E isomer, a Z isomer or mixtures of these isomers, this compound corresponding to a compound of formula XX in which R represents a group -COOR ', R' being as defined above.
- compounds of formula XVIII in which L represents an oxygen atom also form preferred compounds.
- particularly preferred compounds of the invention are represented by benzoyloxy derivatives of formula XVIII wherein: a) R 2 'is 3- (di-n-butylamino) -propyl, L is a bond and Y is the group of formula XIX wherein R 1 'is n-butyl,
- R 2 ' represents 3- (di-n-butylamino) -propyl
- L represents a bond
- Y represents the group of formula XX in which R 1' represents n-butyl, this compound being in the form of isomer E, d Z isomer or mixture of these isomers.
- R 2 ' represents 3- (di-n-butylamino) -propyl
- L represents an oxygen atom
- Y represents the group of formula XIX in which R 1' represents n-butyl
- R 2 ' represents 3- (di-n-butylamino) -propyl
- L represents an oxygen atom
- Y represents the group of formula XX in which R 1' represents n-butyl, this compound being in the form of an isomer E, isomer Z or a mixture of these isomers.
- Ri represents n-butyl
- R 2 ' represents 3- (di-n-butylamino) -propyl and Y represents the group of formula XX' in which R 1 'represents n-butyl, this compound being in the form of E isomer, Z isomer or mixing these isomers.
- R 2 ' represents 3- (di-n-butylamino) -propyl and Y represents the group of formula XIX in which R 1' represents n-butyl,
- R 2 ' represents 3- (di-n-butylamino) -propyl and Y represents the group of formula XX' in which R 1 'represents n-butyl, this compound being in the form of E isomer, Z isomer or mixing these isomers.
- particularly preferred compounds of the invention are represented by the compounds of formula XVIII wherein a) R 2 'represents 3- (di-n-butylamino) -propyl, and Y represents the group of formula XIX in which R 1' represents n-butyl,
- R 2 ' represents 3- (di-n-butylamino) -propyl and Y represents the group of formula XX''in which
- R 1 ' represents n-butyl, this compound being in the form of E isomer, Z isomer or a mixture of these isomers.
- R 2 ' represents 3- (di-n-butylamino) -propyl and Y represents the group of formula XIX in which R 1' represents n-butyl,
- R 2 ' represents 3- (di-n-butylamino) -propyl and Y represents the group of formula XX''in which R 1' represents n-butyl, this compound being in the form of E isomer, of Z isomer or mixing these isomers.
- the organic phases are combined and washed with a mixture of 200 ml of water, 2.24 ml of 90% acetic acid and 3.75 g of sodium chloride and then twice with an aqueous solution of sodium chloride. . We wear then the organic phase to dry to obtain the desired compound X.
- the organic phase is successively washed with water, a solution of hydrochloric acid, water, an aqueous solution of potassium carbonate and an aqueous solution of sodium chloride.
- the aqueous phases are treated with sodium hydroxide and counter-extracted with dichloromethane.
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Abstract
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Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG2013004338A SG187565A1 (en) | 2010-07-21 | 2011-07-20 | Process for preparing benzofuran derivatives substituted at position 5 |
BR112013001365A BR112013001365A2 (pt) | 2010-07-21 | 2011-07-20 | processo de preparo de derivados de benzofurano substituídos na posição 5 |
CN2011800454136A CN103221401A (zh) | 2010-07-21 | 2011-07-20 | 制备5位被取代的苯并呋喃衍生物的方法 |
EP11754896.6A EP2595977A1 (fr) | 2010-07-21 | 2011-07-20 | Procede de preparation de derives de benzofurane substitues en position 5 |
CA2805868A CA2805868A1 (fr) | 2010-07-21 | 2011-07-20 | Procede de preparation de derives de benzofurane substitues en position 5 |
MX2013000845A MX2013000845A (es) | 2010-07-21 | 2011-07-20 | Procedimiento de preparacion de derivados de benzofurano sustituidos en posicion 5. |
AU2011281435A AU2011281435A1 (en) | 2010-07-21 | 2011-07-20 | Process for preparing benzofuran derivatives substituted at position 5 |
JP2013520191A JP2013533267A (ja) | 2010-07-21 | 2011-07-20 | 5位で置換されたべンゾフラン誘導体の調製方法 |
KR1020137004233A KR20130094305A (ko) | 2010-07-21 | 2011-07-20 | 5 위치에서 치환된 벤조푸란 유도체의 제조 방법 |
RU2013107600/04A RU2013107600A (ru) | 2010-07-21 | 2011-07-20 | Способ получения производных бензофурана, замещенных в 5 положении |
US13/742,810 US8748636B2 (en) | 2010-07-21 | 2013-01-16 | Process for preparing benzofuran derivatives substituted at position 5 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1055951 | 2010-07-21 | ||
FR1055951A FR2963006B1 (fr) | 2010-07-21 | 2010-07-21 | Procede de preparation de derives de nitro-benzofurane |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/742,810 Continuation US8748636B2 (en) | 2010-07-21 | 2013-01-16 | Process for preparing benzofuran derivatives substituted at position 5 |
Publications (1)
Publication Number | Publication Date |
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WO2012010802A1 true WO2012010802A1 (fr) | 2012-01-26 |
Family
ID=42790926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2011/051751 WO2012010802A1 (fr) | 2010-07-21 | 2011-07-20 | Procede de preparation de derives de benzofurane substitues en position 5 |
Country Status (13)
Country | Link |
---|---|
US (1) | US8748636B2 (fr) |
EP (1) | EP2595977A1 (fr) |
JP (1) | JP2013533267A (fr) |
KR (1) | KR20130094305A (fr) |
CN (1) | CN103221401A (fr) |
AU (1) | AU2011281435A1 (fr) |
BR (1) | BR112013001365A2 (fr) |
CA (1) | CA2805868A1 (fr) |
FR (1) | FR2963006B1 (fr) |
MX (1) | MX2013000845A (fr) |
RU (1) | RU2013107600A (fr) |
SG (1) | SG187565A1 (fr) |
WO (1) | WO2012010802A1 (fr) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8501971B2 (en) | 2009-12-08 | 2013-08-06 | Sanofi | Process for the preparation of dronedarone |
US8884033B2 (en) | 2010-07-19 | 2014-11-11 | Sanofi | Process for preparing aminobenzoylbenzofuran derivatives |
US9174959B2 (en) | 2011-03-29 | 2015-11-03 | Sanofi | Process for preparation of dronedarone by N-butylation |
US9174958B2 (en) | 2010-06-18 | 2015-11-03 | Sanofi | Process for the preparation of dronedarone |
US9193703B2 (en) | 2011-03-29 | 2015-11-24 | Sanofi | Process for preparation of dronedarone by mesylation |
US9221777B2 (en) | 2012-01-20 | 2015-12-29 | Sanofi | Process for preparation of dronedarone by the use of dibutylaminopropanol reagent |
US9221778B2 (en) | 2012-02-13 | 2015-12-29 | Sanofi | Process for preparation of dronedarone by removal of hydroxyl group |
US9238636B2 (en) | 2012-05-31 | 2016-01-19 | Sanofi | Process for preparation of dronedarone by Grignard reaction |
US9249119B2 (en) | 2012-02-14 | 2016-02-02 | Sanofi | Process for the preparation of dronedarone by oxidation of a sulphenyl group |
US9334254B2 (en) | 2010-03-30 | 2016-05-10 | Sanofi | Process for preparing sulfonamidobenzofuran derivatives |
US9382223B2 (en) | 2012-02-22 | 2016-07-05 | Sanofi | Process for preparation of dronedarone by oxidation of a hydroxyl group |
US9499507B2 (en) | 2011-11-29 | 2016-11-22 | Sanofi | Method for preparing 5-amino-benzoyl-benzofuran derivatives |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HUP1000010A2 (en) | 2010-01-08 | 2011-11-28 | Sanofi Sa | Process for producing dronedarone |
CN109384754B (zh) * | 2017-08-14 | 2020-06-09 | 新发药业有限公司 | 一种盐酸决奈达隆的制备方法 |
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FR2817864B1 (fr) | 2000-12-11 | 2003-02-21 | Sanofi Synthelabo | Derive de methanesulfonamido-benzofurane, son procede de preparation et son utilisation comme intermediaire de synthese |
FR2817865B1 (fr) | 2000-12-11 | 2005-02-18 | Sanofi Synthelabo | Derive aminoalkoxybenzoyle sous forme de sel, son procede de preparation et son utilisation comme intermediaire de synthese |
UY32656A (es) | 2009-05-27 | 2010-12-31 | Sanofi Aventis | Procedimiento para producir benzofuranos |
TW201111354A (en) | 2009-05-27 | 2011-04-01 | Sanofi Aventis | Process for the production of Dronedarone intermediates |
HUP0900759A2 (en) | 2009-12-08 | 2011-11-28 | Sanofi Aventis | Novel process for producing dronedarone |
HUP1000010A2 (en) | 2010-01-08 | 2011-11-28 | Sanofi Sa | Process for producing dronedarone |
FR2962731B1 (fr) | 2010-07-19 | 2012-08-17 | Sanofi Aventis | Procede de preparation de derives d'amino-benzoyl-benzofurane |
FR2973027A1 (fr) | 2011-03-24 | 2012-09-28 | Sanofi Aventis | Procede de synthese de derives de cetobenzofurane |
HUP1100167A2 (en) | 2011-03-29 | 2012-11-28 | Sanofi Sa | Process for preparation of dronedarone by mesylation |
HUP1100166A2 (en) | 2011-03-29 | 2012-12-28 | Sanofi Sa | Reductive amination process for preparation of dronedarone using amine intermediary compound |
HUP1100165A2 (en) | 2011-03-29 | 2012-12-28 | Sanofi Sa | Process for preparation of dronedarone by n-butylation |
-
2010
- 2010-07-21 FR FR1055951A patent/FR2963006B1/fr not_active Expired - Fee Related
-
2011
- 2011-07-20 KR KR1020137004233A patent/KR20130094305A/ko not_active Application Discontinuation
- 2011-07-20 MX MX2013000845A patent/MX2013000845A/es unknown
- 2011-07-20 AU AU2011281435A patent/AU2011281435A1/en not_active Abandoned
- 2011-07-20 WO PCT/FR2011/051751 patent/WO2012010802A1/fr active Application Filing
- 2011-07-20 EP EP11754896.6A patent/EP2595977A1/fr not_active Withdrawn
- 2011-07-20 BR BR112013001365A patent/BR112013001365A2/pt not_active Application Discontinuation
- 2011-07-20 RU RU2013107600/04A patent/RU2013107600A/ru not_active Application Discontinuation
- 2011-07-20 CN CN2011800454136A patent/CN103221401A/zh active Pending
- 2011-07-20 JP JP2013520191A patent/JP2013533267A/ja active Pending
- 2011-07-20 CA CA2805868A patent/CA2805868A1/fr not_active Abandoned
- 2011-07-20 SG SG2013004338A patent/SG187565A1/en unknown
-
2013
- 2013-01-16 US US13/742,810 patent/US8748636B2/en active Active
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8889734B2 (en) | 2009-12-08 | 2014-11-18 | Sanofi | Process for the preparation of dronedarone |
US8501971B2 (en) | 2009-12-08 | 2013-08-06 | Sanofi | Process for the preparation of dronedarone |
US9334254B2 (en) | 2010-03-30 | 2016-05-10 | Sanofi | Process for preparing sulfonamidobenzofuran derivatives |
US9174958B2 (en) | 2010-06-18 | 2015-11-03 | Sanofi | Process for the preparation of dronedarone |
US8884033B2 (en) | 2010-07-19 | 2014-11-11 | Sanofi | Process for preparing aminobenzoylbenzofuran derivatives |
US9174959B2 (en) | 2011-03-29 | 2015-11-03 | Sanofi | Process for preparation of dronedarone by N-butylation |
US9193703B2 (en) | 2011-03-29 | 2015-11-24 | Sanofi | Process for preparation of dronedarone by mesylation |
US9611242B2 (en) | 2011-03-29 | 2017-04-04 | Sanofi | Process for preparation of dronedarone by N-butylation |
US9499507B2 (en) | 2011-11-29 | 2016-11-22 | Sanofi | Method for preparing 5-amino-benzoyl-benzofuran derivatives |
US9221777B2 (en) | 2012-01-20 | 2015-12-29 | Sanofi | Process for preparation of dronedarone by the use of dibutylaminopropanol reagent |
US9708281B2 (en) | 2012-01-20 | 2017-07-18 | Sanofi | Process for preparation of dronedarone by the use of dibutylaminopropanol reagent |
US9221778B2 (en) | 2012-02-13 | 2015-12-29 | Sanofi | Process for preparation of dronedarone by removal of hydroxyl group |
US9701654B2 (en) | 2012-02-13 | 2017-07-11 | Sanofi | Process for preparation of dronedarone by removal of hydroxyl group |
US9249119B2 (en) | 2012-02-14 | 2016-02-02 | Sanofi | Process for the preparation of dronedarone by oxidation of a sulphenyl group |
US9382223B2 (en) | 2012-02-22 | 2016-07-05 | Sanofi | Process for preparation of dronedarone by oxidation of a hydroxyl group |
US9238636B2 (en) | 2012-05-31 | 2016-01-19 | Sanofi | Process for preparation of dronedarone by Grignard reaction |
Also Published As
Publication number | Publication date |
---|---|
MX2013000845A (es) | 2013-02-11 |
RU2013107600A (ru) | 2014-08-27 |
AU2011281435A1 (en) | 2013-02-07 |
CA2805868A1 (fr) | 2012-01-26 |
BR112013001365A2 (pt) | 2016-05-17 |
US8748636B2 (en) | 2014-06-10 |
US20130165674A1 (en) | 2013-06-27 |
SG187565A1 (en) | 2013-03-28 |
JP2013533267A (ja) | 2013-08-22 |
KR20130094305A (ko) | 2013-08-23 |
FR2963006B1 (fr) | 2013-03-15 |
CN103221401A (zh) | 2013-07-24 |
EP2595977A1 (fr) | 2013-05-29 |
FR2963006A1 (fr) | 2012-01-27 |
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