OA11494A - Method for making 4-carboxyamino-2-substituted-1,2,3,4-tetrahydroquinoline. - Google Patents

Method for making 4-carboxyamino-2-substituted-1,2,3,4-tetrahydroquinoline. Download PDF

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Publication number
OA11494A
OA11494A OA1200000268A OA1200000268A OA11494A OA 11494 A OA11494 A OA 11494A OA 1200000268 A OA1200000268 A OA 1200000268A OA 1200000268 A OA1200000268 A OA 1200000268A OA 11494 A OA11494 A OA 11494A
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OA
OAPI
Prior art keywords
trifluoromethyl
ethyl
dihydro
quinoline
carboxylic acid
Prior art date
Application number
OA1200000268A
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English (en)
Inventor
David Burns Damon
Robert Wayne Dugger
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Pfizer Prod Inc
Priority date (The priority date 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 date listed.)
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Publication of OA11494A publication Critical patent/OA11494A/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D215/00Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/16Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D215/38Nitrogen atoms
    • C07D215/42Nitrogen atoms attached in position 4
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/06Antihyperlipidemics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/10Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • Diabetes (AREA)
  • Obesity (AREA)
  • Urology & Nephrology (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Quinoline Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Steroid Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Claims (15)

  1. -21- 011494 CLAIMS 1. 4-(3,5-Bis-trifluoromethylbenzylamino)-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxyl acid ethyl ester, 4-toluene-sulfonate.
  2. 2. The stereoisomer (-)-(2R,4S)-4-(3,5-bis-trifluoromethylbenzylamino)-2-ethyl-6- trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxyl acid ethyl ester or salts thereof.
  3. 3. The stereoisomer as recited in claim 2 wherein the sait is the 4-toluene-sulfonate.
  4. 4. The (-)di-p-toluoyl-L-tartaric acid sait of c/s-4-amino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester.
  5. 5. The (-)di-benzoyl-L-tartrate sait ofc/s-4-amino-2-ethyl-6-trifluoromethyl-3,4- dihydro-2H-quinoline-1 -carboxylic acid ethyl ester.
  6. 6. (-) (2R,4S)- 4-Amino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester or salts thereof.
  7. 7. The stereoisomer as recited in claim 6 wherein the sait is the (-)di-benzoyl-L- 15 tartrate sait.
  8. 8. The stereoisomer as recited in claim 6 wherein the sait is the (-)di-p-toluoyl-L-tartaric acid sait.
  9. 9. A process for preparing (-)-(2R,4S)-4-[(3,5-bis-trifluoromethyl-benzyl)-methoxycarbonyl-amino]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1- 20 carboxylic acid ethyl ester comprising combining (-)-(2R,4S)-4-(3,5-bis- trifluoromethyl-benzylamino)-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester, tosylate sait, sodium carbonate and methyl chloroformatein tetrahydrofuran at a température of about 20°C to about 25°C.
  10. 10. A process for preparing (-)-(2R,4S)-4-(3,5-bis-trifluoromethyl-benzylamino)-2- 25 ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1 -carboxylic acid ethyl ester, 4- toluene-sulfonate comprising a. combining 4-amino-2-ethyl-6-trifiuoromethyl-3,4-dihydro-2H-quinoline-1 -carboxylicacid ethyl ester and (-) dibenzoyl-L-tartaric acid or((-)di-p-toluoyl-L-tartaric acid toform the (-) dibenzoyl-L-tartaric acid sait or di-p-toluoyl-L-tartaric acid sait thereof; 30 b. combining the resulting sait, 1,2-dichloroethane and an aqueous base with 3,5-bis(trifluoromethyl)benzaldehyde, followed by the addition of sodiumtriacetoxyborohydride; and c. adding 4-toluene sulfonic acid monohydrate. -22- 011494
  11. 11. The process as recited in claim 10 wherein 4-amino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester and (-) dibenzoyl-L-tartaric acid(anhydrous) are combined.
  12. 12. A process for preparing c/'s-4-amino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-5 quinoline-1-carboxylic acid ethyl ester comprising combining cis-4- benzyloxycarbonylamino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester and ammonium formate in methanol with palladium/carbonto form a slurry and heating the resulting slurry at a température of about 35°C toabout 60°C for about 30 minutes to about 3 hours. 10
  13. 13. A process for preparing cis-(2-ethyl-6-trifluoromethyl-1,2,3,4-tetrahydro-quinolin- 4-yl)-carbamic acid-R1-esterwherein R1 is benzyl.t-butyl or (CrC^alkyl comprising:combining vinyl-carbamic acid-R1, (1-benzotriazol-1-yl-propyl)-(4-trifluoromethyl-phenyl)-amine and 4-toluene-sulfonic acid monohydrate in toluene at a températureof about 50°C to about 90°C.
  14. 14. The process as recited in claim 13 with the additional step of combining the resulting cis-(2-ethyl-6-trifluoromethyl-1,2,3,4-tetrahydro-quinolin-4-yl)-carbamic acid-R1-esterwith pyridine and ethyl chloroformate indichloromethane in to préparé cis-4-R1-oxycarbonylamino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester. 20
  15. 15. A process for preparing (-)-(2R,4S)-4-[(3,5-bis-trifluoromethyl-benzyl)- methoxycarbonyl-amino]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester comprising a. combining vinyl-carbamic acid-R1, wherein R1 is benzyl, (1-benzotriazol-1-yl-propyl)-(4-trifluoromethyl-phenyl)-amine and 4-toluene-sulfonic acid 25 monohydrate in toluene at a température of about 50°C to about 90°C topréparé cis-(2-ethyl-6-trifluoromethyl-1,2,3,4-tetrahydro-quinolin-4-yl)-carbamic acid-R1-ester wherein R1 is benzyl; b. combining the resulting cis-(2-ethyl-6-trifluoromethyl-1,2,3,4-tetrahydro-quinolin-4-yl)-carbamic acid-R1-ester with pyridine and ethyl chloroformate in 30 dichloromethane to préparé cis-4-R1-oxycarbonylamino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester; c. combining cis-4-R1oxycarbonylamino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester and ammonium formate inmethanol with palladium/carbon to form a slurry and heating the resulting - -23- 011494 slurry at a température of about 35°C to about 60°C for about 30 minutes toabout 3 hours to prépare 4-amino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester; d. combining 4-amino-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-5 carboxylic acid ethyl ester and (-)dibenzoyl-L-tartaric acid or (-)di-p-toluoyl-L- tartaric acid to form the (-)dibenzoyl-L-tartaric acid sait or (-)di-p-toluoyl-L-tartaric acid sait thereof; e. combining the resulting sait, 1,2-dichloroethane and an aqueous base with 3,5-bis(trifluoromethyl)benzaldehyde, followed by the addition of sodium 10 triacetoxyborohydride to form a product; f. combining said product and 4-toluene sulfonic acid monohydrate toprépare (-)-(2R,4S)-4-(3,5-bis-trifluoromethyl-benzylamino)-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester, 4-toluene-sulfonate; and 15 g. combining (-)-(2R,4S)-4-(3,5-bis-trifluoromethyl-benzylamino)-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester, tosylatesait, sodium carbonate and methyl chloroformate in tetrahydrofuran at atempérature of about 20°C« to about 25°C.
OA1200000268A 1999-11-30 2000-09-29 Method for making 4-carboxyamino-2-substituted-1,2,3,4-tetrahydroquinoline. OA11494A (en)

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US (1) US6313142B1 (fr)
EP (1) EP1125929B1 (fr)
JP (1) JP3579345B2 (fr)
KR (1) KR100408177B1 (fr)
CN (1) CN1173953C (fr)
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UA90269C2 (ru) * 2004-04-02 2010-04-26 Мицубиси Танабе Фарма Корпорейшн Тетрагидрохинолиновые производные и способ их получения
CA2570688A1 (fr) * 2004-06-24 2006-02-02 Eli Lilly And Company Composes et procedes destines a traiter la dyslipidemie
DOP2005000123A (es) * 2004-07-02 2011-07-15 Merck Sharp & Dohme Inhibidores de cetp
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AU2006216713A1 (en) * 2005-02-24 2006-08-31 Millennium Pharmaceuticals, Inc. PGD2 receptor antagonists for the treatment of inflammatory diseases
TW200808731A (en) 2006-03-30 2008-02-16 Tanabe Seiyaku Co A process for preparing tetrahydroquinoline derivatives
AR065670A1 (es) 2007-03-09 2009-06-24 Indigene Pharmaceuticals Inc Combinacion de metformina r-(+) lipoato y agentes antihiperlipidemicos para el tratamiento de hiperglucemia diabetica y complicaciones diabeticas
CN101429160B (zh) * 2007-11-06 2011-10-19 上海药明康德新药开发有限公司 一种1-r-4-氨基-1,2,3,4-四氢喹啉的合成方法
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PA8503801A1 (es) 2002-07-30
EE200000659A (et) 2001-08-15
CA2327029A1 (fr) 2001-05-30
IL139849A0 (en) 2002-02-10
CZ20004407A3 (cs) 2002-06-12
HN2000000203A (es) 2001-06-13
GEP20022798B (en) 2002-09-25
HU0004747D0 (fr) 2001-02-28
EP1125929A1 (fr) 2001-08-22
CO5261552A1 (es) 2003-03-31
CA2327029C (fr) 2005-08-09
NO20006039D0 (no) 2000-11-29
YU71500A (sh) 2003-02-28
DE60025317T2 (de) 2006-08-03
SG102603A1 (en) 2004-03-26
KR100408177B1 (ko) 2003-12-01
US6313142B1 (en) 2001-11-06
EP1125929B1 (fr) 2006-01-04
EA003668B1 (ru) 2003-08-28
DK1125929T3 (da) 2006-04-03
TNSN00230A1 (fr) 2005-11-10
PE20010913A1 (es) 2001-09-10
JP2001163859A (ja) 2001-06-19
DZ3079A1 (fr) 2004-10-24
ID28489A (id) 2001-05-31
ATE315028T1 (de) 2006-02-15
SK17792000A3 (sk) 2002-10-08
HUP0004747A2 (hu) 2001-10-28
AU7178900A (en) 2001-05-31
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HK1038007A1 (en) 2002-03-01
CN1173953C (zh) 2004-11-03
UY26451A1 (es) 2001-06-29
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BR0005636A (pt) 2001-07-17
TW591016B (en) 2004-06-11
GT200000190A (es) 2002-04-27
MA25223A1 (fr) 2001-07-02
AU784694B2 (en) 2006-06-01
CY1104989T1 (el) 2010-03-03
EA200001129A2 (ru) 2001-06-25
PL344208A1 (en) 2001-06-04
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NO20006039L (no) 2001-05-31
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HRP20000804A2 (en) 2001-06-30
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ES2254109T3 (es) 2006-06-16
EA200001129A3 (ru) 2001-10-22
BG105009A (en) 2001-11-30
ZA200006947B (en) 2002-05-27
DE60025317D1 (de) 2006-03-30
CN1302800A (zh) 2001-07-11
JP3579345B2 (ja) 2004-10-20
AR029775A1 (es) 2003-07-16

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