EP1773789A1 - Verfahren zur herstellung von 3-(4-piperidinyl)- 2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1h)-on - Google Patents
Verfahren zur herstellung von 3-(4-piperidinyl)- 2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1h)-onInfo
- Publication number
- EP1773789A1 EP1773789A1 EP05775923A EP05775923A EP1773789A1 EP 1773789 A1 EP1773789 A1 EP 1773789A1 EP 05775923 A EP05775923 A EP 05775923A EP 05775923 A EP05775923 A EP 05775923A EP 1773789 A1 EP1773789 A1 EP 1773789A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piperidinyl
- phenylmethyl
- tetrahydro
- amino
- addition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/06—Antimigraine agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Definitions
- the present invention is a process for preparing the compound 3- (4-piperidinyl) -2,3,4,5-tetrahydro-1,3-benzodiazepine-2 (1H) -one of the formula
- CGRP antagonists which can be found as a structural element in CGRP antagonists, which are particularly suitable for the oral therapy of migraine.
- Examples of compounds having CGRP-antagonistic properties which contain as structural element the compound of the formula (I) are described in the international patent applications PCT / EP97 / 04862, PCT / EP00 / G2004, PCT / EP00 / 13236, PCT / EP03 / 02417, PCT / EP03 / 11762 and PCT / EP03 / 11763.
- 2-nitrophenylacetic acid can be used. It is in a first step with an equimolar solution of 4-amino- ⁇ / -phenylmethyIpiperidin in the presence of at least one Equiva ⁇ lent, preferably 1.1 to 1.5 equivalents, more preferably 1.1 equivalents, condensing agents such as carbonyldiimidazole, carbonylditriazole, n-propanephosphonic anhydride , Dicyclohexylcarbodiimide, thionyl chloride, TBTU O- (benzotriazol-i-yl) -NNN'.N'-tetramethyluronium tetrafluoroborate or 1-ethyl-3- (3'-dimethylaminopropyl) carbodiimide to 2-nitro- / V- [1- ( phenylmethyl) -4-piperidinyl] phenylacetamide.
- Equiva ⁇ lent preferably 1.1 to 1.5 equivalents,
- Suitable solvents are polar aprotic solvents such as tetrahydrofuran, dimethoxyethane, toluene, dimethylformamide or ⁇ / -methylpyrrolidinone.
- the product can, for example, be made to crystallize by dilution with water and worked up by filtration or centrifugation and drying.
- the 2-nitro- ⁇ / - [1- (phenylmethyl) -4-piperidinyl] - phenylacetamide is first dissolved in a polar aprotic organic solvent such as tetrahydrofuran or dimethoxyethane, and the carbonyl group by addition of at least one Equivalent, preferably 2.0 to 4.0 equivalents, of a reducing agent converted into a methylene group.
- a polar aprotic organic solvent such as tetrahydrofuran or dimethoxyethane
- Reducing agents are, for example borane, lithium or sodium borohydride in question, optionally with the addition of at least 0.5 equivalents, preferably 2.0 to 4.0 equivalents of a Lewis acid, an acid or a halogen, for example with the addition of sulfuric acid, chlorotrimethylsilane or iodine.
- the reduction can be carried out at temperatures of 20 to 7O 0 C, preferably carried out at 60 to 7O 0 C.
- the nitro group of the resulting intermediate ⁇ / - [2- (2-nitrophenyl) ethyl] -1- (phenylmethyl) -4-amino-piperidine is hydrogenated in the presence of a Raney nickel catalyst.
- the starting material is initially charged in dimethylformamide, and the catalyst is added as an aqueous suspension.
- Favorable conditions for the hydrogenation are temperatures of 20 to 60 0 C and a hydrogen pressure of at most 3 bar. After filtering off the catalyst, the hydrogenation product can be concentrated by distilling off the solvent.
- the cyclization is carried out by adding the thus-obtained crude product to a suspension of at least one equivalent, preferably 1.1 to 1.75 equivalents, more preferably 1.1 equivalents, of a condensing agent such as carbonyldiimidazole or carbonylditriazole.
- a condensing agent such as carbonyldiimidazole or carbonylditriazole.
- Suitable solvents are polar aprotic solvents such as tetrahydrofuran, ethyl acetate, 2-methyltetrahydrofuran, dimethylformamide or / V-methylpyrrolidinone.
- the resulting 3- [1- (phenylmethyl) -4-piperidinyl] -2,3,4,5-tetrahydro-1,3-benzodiazepine-2 (1H) -one can be prepared, for example, by dilution with water and alcohol
- alcohol for example, methanol, ethanol or isopropanol, preferably methanol, precipitated and worked up by filtration or centrifugation and drying.
- the intermediate ⁇ / - [2- (2-nitrophenyl) ethyl] -1- (phenylmethyl) -4-amino-piperidine can be precipitated and isolated in the form of a salt by adding at least 2 equivalents of an aqueous solution of a strong acid become.
- Suitable acids are hydrochloric, hydrobromic or sulfuric acid, especially hydrochloric acid, to give the dihydrochloride.
- the reaction mixture is cooled to room temperature and treated with an alcohol such as methanol, ethanol or isopropanol, preferably methanol. After addition of an excess of the aqueous acid is heated again to reflux and then cooled again.
- the reaction mixture is made alkaline with an aqueous solution of a base, for example lithium hydroxide, sodium hydroxide, ammonia or potassium hydroxide and, after phase separation, an excess of the aqueous acid is added to the organic phase to crystallize out the desired salt.
- the product can then be worked up by filtration or centrifugation and drying.
- the benzyl protecting group of 3- [1- (phenylmethyl) -4-piperidinyl] -2,3,4,5-tetrahydro-1,3-benzodiazepine-2 (1H) -one is cleaved off.
- the starting material in a polar solvent such as methanol, ethanol, water, acetone, tetrahydrofuran, dimethylformamide or propanol, dissolved, and hydrogenated in a pressure reactor.
- a hydrogenating agent for example, Pd / C or Pd (OH) 2 can be used.
- Advantageous conditions for the hydrogenation are temperatures of 40 to 80 0 C and a hydrogen pressure of at most 3 bar.
- the resulting suspension is cooled to 0 to 5 ° C and stirred to complete the crystallization for a further hour.
- the product is then centrifuged off, washed with a cold mixture of 160 l of water and 9 l of tetrahydrofuran and dried at 45 ° C. while being inertized in a drying oven.
- the remaining solution is hydrogenated in the presence of 860 g Raney nickel at 5O 0 C.
- the catalyst is filtered off and washed with 16 L of methanol.
- the solvent is distilled off and the residue is mixed with 30 L of tetrahydrofuran.
- Half of the tetrahydrofuran used is distilled off and the remaining solution at 2O 0 C added to a suspension of 6.88 kg (42.44 mol, 1.75 eq) of 1, 1-carbonyldiimidazole in 15 L tetrahydrofuran within 1.5 hours. It is stirred for 1 hour at this temperature.
- 20 L of water are added, inoculated and added a further 17 L of water.
- the resulting suspension is cooled to 0 ° C. To complete the Crystallization is stirred for 1.5 hours at 0 ° C. Subsequently, the product is centrifuged off, washed with 30 L of water and dried under inertization in an oven at 45 ° C.
- the catalyst is filtered off and washed with Washed 30 L of methanol.
- the filtrate is concentrated in vacuo and the residue is suspended in 100 L of acetone.
- the mixture is then heated to reflux, the suspension stirred for 15 minutes under reflux and distilled off half of the acetone at atmospheric pressure. After completion of the distillation is cooled to 0 0 C and stirred for a further hour.
- the product is filtered off with suction, washed with 20 L acetone and dried at 50 0 C.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pain & Pain Management (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Hydrogenated Pyridines (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05775923A EP1773789A1 (de) | 2004-07-23 | 2005-07-16 | Verfahren zur herstellung von 3-(4-piperidinyl)- 2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1h)-on |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04017424A EP1619187A1 (de) | 2004-07-23 | 2004-07-23 | Verfahren zur Herstellung von 3-(4-Piperidinyl)- 2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1H)-on |
PCT/EP2005/007778 WO2006010511A1 (de) | 2004-07-23 | 2005-07-16 | Verfahren zur herstellung 3-(4-piperidinyl)-2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1h)-on |
EP05775923A EP1773789A1 (de) | 2004-07-23 | 2005-07-16 | Verfahren zur herstellung von 3-(4-piperidinyl)- 2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1h)-on |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1773789A1 true EP1773789A1 (de) | 2007-04-18 |
Family
ID=34925890
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04017424A Withdrawn EP1619187A1 (de) | 2004-07-23 | 2004-07-23 | Verfahren zur Herstellung von 3-(4-Piperidinyl)- 2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1H)-on |
EP05775923A Withdrawn EP1773789A1 (de) | 2004-07-23 | 2005-07-16 | Verfahren zur herstellung von 3-(4-piperidinyl)- 2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1h)-on |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04017424A Withdrawn EP1619187A1 (de) | 2004-07-23 | 2004-07-23 | Verfahren zur Herstellung von 3-(4-Piperidinyl)- 2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1H)-on |
Country Status (19)
Country | Link |
---|---|
US (1) | US7141667B2 (de) |
EP (2) | EP1619187A1 (de) |
JP (1) | JP4516118B2 (de) |
KR (1) | KR20070046881A (de) |
CN (2) | CN1989114A (de) |
AR (1) | AR050352A1 (de) |
AU (1) | AU2005266579A1 (de) |
BR (1) | BRPI0513468A (de) |
CA (1) | CA2572811C (de) |
EA (1) | EA011260B1 (de) |
EC (1) | ECSP077190A (de) |
IL (1) | IL180848A0 (de) |
MX (1) | MX2007000906A (de) |
NO (1) | NO20070366L (de) |
NZ (1) | NZ553294A (de) |
TW (1) | TW200613283A (de) |
UA (1) | UA87507C2 (de) |
WO (1) | WO2006010511A1 (de) |
ZA (1) | ZA200609919B (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101146799A (zh) | 2005-03-23 | 2008-03-19 | 贝林格尔·英格海姆国际有限公司 | Cgrp拮抗剂、其制备方法以及其作为药物的用途 |
US7473778B2 (en) * | 2005-12-24 | 2009-01-06 | Boehringer Ingelheim International Gmbh | 3-(4-piperidinyl)-2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1H)-one |
DE102007038251A1 (de) | 2007-08-13 | 2009-02-19 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Neues Herstellverfahren |
CA2705405A1 (en) | 2007-11-22 | 2009-05-28 | Boehringer Ingelheim International Gmbh | New compounds |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3474090A (en) * | 1966-12-22 | 1969-10-21 | American Cyanamid Co | 3-aminoalkyl-1,3-benzodiazepin-2-ones |
FR2518544A1 (fr) * | 1981-12-22 | 1983-06-24 | Lipha | Benzodiazepines-1,3 thione-2, procede de preparation et medicament les contenant |
DE19911039A1 (de) * | 1999-03-12 | 2000-09-14 | Boehringer Ingelheim Pharma | Abgewandelte Aminosäureamide, diese Verbindungen enthaltende Arzneimittel und Verfahren zu ihrer Herstellung |
FR2791021B1 (fr) * | 1999-03-16 | 2001-05-11 | France Design | Arceau de protection pour vehicule decouvrable a toit repliable |
-
2004
- 2004-07-23 EP EP04017424A patent/EP1619187A1/de not_active Withdrawn
-
2005
- 2005-07-16 CA CA2572811A patent/CA2572811C/en not_active Expired - Fee Related
- 2005-07-16 KR KR1020077004190A patent/KR20070046881A/ko not_active Application Discontinuation
- 2005-07-16 MX MX2007000906A patent/MX2007000906A/es active IP Right Grant
- 2005-07-16 WO PCT/EP2005/007778 patent/WO2006010511A1/de active Application Filing
- 2005-07-16 AU AU2005266579A patent/AU2005266579A1/en not_active Abandoned
- 2005-07-16 CN CNA2005800242298A patent/CN1989114A/zh active Pending
- 2005-07-16 NZ NZ553294A patent/NZ553294A/en not_active IP Right Cessation
- 2005-07-16 JP JP2007521872A patent/JP4516118B2/ja not_active Expired - Fee Related
- 2005-07-16 EP EP05775923A patent/EP1773789A1/de not_active Withdrawn
- 2005-07-16 BR BRPI0513468-4A patent/BRPI0513468A/pt not_active IP Right Cessation
- 2005-07-16 UA UAA200701639A patent/UA87507C2/ru unknown
- 2005-07-16 CN CN2010106088785A patent/CN102040590A/zh active Pending
- 2005-07-16 EA EA200700041A patent/EA011260B1/ru not_active IP Right Cessation
- 2005-07-19 US US11/185,593 patent/US7141667B2/en active Active
- 2005-07-22 AR ARP050103035A patent/AR050352A1/es not_active Application Discontinuation
- 2005-07-22 TW TW094125013A patent/TW200613283A/zh unknown
-
2006
- 2006-11-28 ZA ZA200609919A patent/ZA200609919B/en unknown
-
2007
- 2007-01-19 NO NO20070366A patent/NO20070366L/no not_active Application Discontinuation
- 2007-01-22 EC EC2007007190A patent/ECSP077190A/es unknown
- 2007-01-22 IL IL180848A patent/IL180848A0/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2006010511A1 * |
Also Published As
Publication number | Publication date |
---|---|
NO20070366L (no) | 2007-02-06 |
US20060019946A1 (en) | 2006-01-26 |
US7141667B2 (en) | 2006-11-28 |
CN1989114A (zh) | 2007-06-27 |
UA87507C2 (en) | 2009-07-27 |
EA200700041A1 (ru) | 2007-08-31 |
MX2007000906A (es) | 2007-04-13 |
EP1619187A1 (de) | 2006-01-25 |
JP2008507484A (ja) | 2008-03-13 |
TW200613283A (en) | 2006-05-01 |
CN102040590A (zh) | 2011-05-04 |
WO2006010511A8 (de) | 2006-05-18 |
WO2006010511A1 (de) | 2006-02-02 |
KR20070046881A (ko) | 2007-05-03 |
IL180848A0 (en) | 2007-07-04 |
CA2572811A1 (en) | 2006-02-02 |
NZ553294A (en) | 2009-07-31 |
AU2005266579A1 (en) | 2006-02-02 |
ECSP077190A (es) | 2007-03-29 |
CA2572811C (en) | 2012-09-11 |
AR050352A1 (es) | 2006-10-18 |
BRPI0513468A (pt) | 2008-05-06 |
JP4516118B2 (ja) | 2010-08-04 |
EA011260B1 (ru) | 2009-02-27 |
ZA200609919B (en) | 2008-07-30 |
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Owner name: BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG Owner name: BOEHRINGER INGELHEIM INTERNATIONAL GMBH |
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