WO1995000480B1 - Novel intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives - Google Patents

Novel intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives

Info

Publication number
WO1995000480B1
WO1995000480B1 PCT/US1994/005982 US9405982W WO9500480B1 WO 1995000480 B1 WO1995000480 B1 WO 1995000480B1 US 9405982 W US9405982 W US 9405982W WO 9500480 B1 WO9500480 B1 WO 9500480B1
Authority
WO
WIPO (PCT)
Prior art keywords
hydrogen
hydroxy
formula
compound
integer
Prior art date
Application number
PCT/US1994/005982
Other languages
French (fr)
Other versions
WO1995000480A1 (en
Filing date
Publication date
Priority to CA002166059A priority Critical patent/CA2166059C/en
Priority to DE69431954T priority patent/DE69431954T2/en
Priority to KR1019950705911A priority patent/KR100333790B1/en
Priority to NZ267830A priority patent/NZ267830A/en
Priority to DK94919264T priority patent/DK0705245T3/en
Priority to HU9503705A priority patent/HU226037B1/en
Priority to EP94919264A priority patent/EP0705245B1/en
Priority to AU70466/94A priority patent/AU699559B2/en
Application filed filed Critical
Priority to AT94919264T priority patent/ATE230395T1/en
Priority to JP50283195A priority patent/JP3712208B2/en
Publication of WO1995000480A1 publication Critical patent/WO1995000480A1/en
Publication of WO1995000480B1 publication Critical patent/WO1995000480B1/en
Priority to FI956248A priority patent/FI114912B/en
Priority to NO19955255A priority patent/NO313191B1/en
Priority to NO20022129A priority patent/NO319850B1/en
Priority to FI20031381A priority patent/FI119932B/en
Priority to NO20034811A priority patent/NO319873B1/en

Links

Abstract

The present invention is related to novel intermediates and processes which are useful in the preparation of certain antihistaminic piperidine derivatives of formula (I) wherein W represents -C(=O)- or -CH(OH)-; R1 represents hydrogen or hydroxy; R2 represents hydrogen; R1 and R2 taken together form a second bond between the carbon atoms bearing R1 and R2; n is an integer of from 1 to 5; m is an integer 0 or 1; R3 is -COOH or -COOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched; each of A is hydrogen or hydroxy; and pharmaceutically acceptable salts and individual optical isomers thereof, with the proviso that where R1 and R2 are taken together to form a second bond between the carbon atoms bearing R1 and R2 or where R1 represented hydroxy, m is an integer 0.

Claims

AMENDED CLAIMS
[received by the International Bureau on 10 January 1995 (10.01.95); original claim 7 amended; new claims 36 and 37 added; remaining claims unchanged (3 pages)]
5 . A compound of the formula
Figure imgf000003_0001
wherein A is a hydrogen or hydroxy.
6. A compound of the formula
Figure imgf000003_0002
wherein
A is a hydrogen or hydroxy.
7. A compound of the formula o ςπ3
Hal- (CH2)n—c — (/ —c—R5 CH3
wherein
Hal is Cl, Br or I; n is an integer of from 1 to 5; A is a hydrogen or hydroxy; and
R5 is H, CH2OD wherein D is hydrogen, acetate or benzoate, CHO, Br, Cl, I, CN, -COOH, -COOalkyl, -C(=NH)Oalkyl, or -CONR6R7, wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched and Rξ. and R7 are each independently H, Cι~ Cβalkyl, Ci-Cβalkoxy or Re and R7 taken together with the nitrogen atom form a pyrrolidine, piperidine or morpholine, with the proviso that Re and R7 cannot both be represented by Ci-Cβalkoxy.
8. A compound of the formula
Figure imgf000004_0001
wherein
Hal is Cl, Br or I; n is an integer of from 1 to 5; A is a hydrogen or hydroxy; and R5 is H, OH, Br, Cl, I, CN, -COOH,-COOalkyl,
-C(=NH)Oalkyl, or -CONR6R7 wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched and Re and R7 are each independently H, Cι~ Cβalkyl, Ci-Cβalkoxy or Re and R7 taken together with the nitrogen atom form a pyrrolidine, piperidine or morpholine, with the proviso that Re and R7 cannot both be represented by Ci-Cβalkoxy.
9. A compound of the formula o
Hal- (CH2)n—c —/ —CH2—R5
A wherein
Hal is Cl, Br or I; n is an integer of from 1 to 5; A is a hydrogen or hydroxy; and R5 is H, OH, Br, Cl, I, CN, -COOH, -COOalkyl, -C(=NH)Oalkyl or -CONR6R7 wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched and Re and R7 are each independently H, Cι~ Cealkyl, Ci-Cβalkoxy or Re and R7 taken together with 36. A compound of the formula
Figure imgf000005_0001
37. A compound according to claim 7 wherein n is 3, Hal l, R5 is -COOCH3 and A is hydrogen.
PCT/US1994/005982 1993-06-25 1994-05-26 Novel intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives WO1995000480A1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
AT94919264T ATE230395T1 (en) 1993-06-25 1994-05-26 NEW INTERMEDIATE PRODUCTS FOR THE PRODUCTION OF ANTHISTAMIN 4-DIPHENYLMETHYL/DIPHENYLMETHOXYPIPERIDINE DERIVATIVE N
DE69431954T DE69431954T2 (en) 1993-06-25 1994-05-26 NEW INTERMEDIATE PRODUCTS FOR THE PRODUCTION OF ANTIHISTAMIN 4-DIPHENYLMETHYL / DIPHENYLMETHOXYPIPERIDIN DERIVATIVES
JP50283195A JP3712208B2 (en) 1993-06-25 1994-05-26 Novel intermediate for the production of antihistaminic 4-diphenylmethyl / diphenylmethoxypiperidine derivatives
DK94919264T DK0705245T3 (en) 1993-06-25 1994-05-26 New intermediates for the preparation of antihistaminic 4-diphenylmethyl / diphenylmethoxy-piperidine compounds
HU9503705A HU226037B1 (en) 1993-06-25 1994-05-26 Process for producing antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives and novel intermediates
EP94919264A EP0705245B1 (en) 1993-06-25 1994-05-26 Novel intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives
AU70466/94A AU699559B2 (en) 1993-06-25 1994-05-26 Novel intermediates for the preparation of antihistaminic piperidine derivatives
CA002166059A CA2166059C (en) 1993-06-25 1994-05-26 Novel intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives
KR1019950705911A KR100333790B1 (en) 1993-06-25 1994-05-26 New Intermediates for Antihistamine 4-Diphenylmethyl / Diphenylmethoxypiperidine Derivatives
NZ267830A NZ267830A (en) 1993-06-25 1994-05-26 Preparation of 4-diphenylmethyl or 4-diphenylmethoxy piperidine derivatives and intermediates therefor
FI956248A FI114912B (en) 1993-06-25 1995-12-22 New intermediates for the preparation of antihistaminic 4-diphenylmethyl / diphenylmethoxypiperidine derivatives
NO19955255A NO313191B1 (en) 1993-06-25 1995-12-22 Process for Preparation of Antihistaminic 4-Diphenylmethyl / Diphenylmethoxypiperidine Derivatives, New Intermediates and Their Use
NO20022129A NO319850B1 (en) 1993-06-25 2002-05-03 Methods for preparing valuable therapeutically active piperidine derivatives.
FI20031381A FI119932B (en) 1993-06-25 2003-09-25 Intermediates and the process for preparing antihistaminic 4-diphenylmethylpiperidine derivatives
NO20034811A NO319873B1 (en) 1993-06-25 2003-10-28 Process for the preparation of antihistaminic 4-diphenylmethyl / diphenylmethoxypiperidine derivatives, novel intermediates and their use

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US8269393A 1993-06-25 1993-06-25
US08/082,693 1993-06-25
US14408493A 1993-10-27 1993-10-27
US08/144,084 1993-10-27
US23746694A 1994-05-11 1994-05-11
US08/237,466 1994-05-11

Publications (2)

Publication Number Publication Date
WO1995000480A1 WO1995000480A1 (en) 1995-01-05
WO1995000480B1 true WO1995000480B1 (en) 1995-02-09

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PCT/US1994/005982 WO1995000480A1 (en) 1993-06-25 1994-05-26 Novel intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives

Country Status (21)

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US (11) US6242606B1 (en)
EP (5) EP2261207A1 (en)
JP (3) JP3712208B2 (en)
KR (1) KR100333790B1 (en)
CN (3) CN1168717C (en)
AT (1) ATE230395T1 (en)
AU (2) AU699559B2 (en)
CA (3) CA2362339C (en)
DE (1) DE69431954T2 (en)
DK (1) DK0705245T3 (en)
ES (1) ES2190442T3 (en)
FI (2) FI114912B (en)
HK (2) HK1032226A1 (en)
HU (1) HU226037B1 (en)
IL (20) IL143619A (en)
MX (4) MXPA01007692A (en)
NO (3) NO313191B1 (en)
NZ (1) NZ267830A (en)
TW (1) TW334420B (en)
WO (1) WO1995000480A1 (en)
ZA (1) ZA944380B (en)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0701443T4 (en) * 1992-08-03 2000-12-18 Sepracor Inc Terfenadine metabolites and their optically pure isomers for the treatment of allergic disorders
US20020007068A1 (en) 1999-07-16 2002-01-17 D'ambra Thomas E. Piperidine derivatives and process for their production
AU670004B2 (en) * 1993-06-24 1996-06-27 Albany Molecular Research, Inc. Piperidine derivatives and process for their production
EP2261207A1 (en) * 1993-06-25 2010-12-15 Aventisub II Inc. Intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives
DK0766668T3 (en) 1994-05-18 2002-10-28 Aventis Pharma Inc Process for the preparation of anhydrous and hydrate forms of piperidine derivatives useful as antihistamines, polymorphs and pseudo-morphs thereof
NZ306319A (en) * 1995-05-08 1999-08-30 Hoechst Marion Roussel Inc 1-alkylphenyl substituted 4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-butanol derivatives and medicaments
AU7104596A (en) * 1995-09-12 1997-04-01 Albany Molecular Research, Inc. Piperidine derivatives and processes for their production
US6201124B1 (en) 1995-12-21 2001-03-13 Albany Molecular Research, Inc. Process for production of piperidine derivatives
US6153754A (en) 1995-12-21 2000-11-28 Albany Molecular Research, Inc. Process for production of piperidine derivatives
ES2124167B1 (en) * 1996-06-04 1999-09-16 Espanola Prod Quimicos NEW DERIVATIVES OF BENZMIDAZOLE WITH ANTIHISTAMINE ACTIVITY.
US5925761A (en) * 1997-02-04 1999-07-20 Sepracor Inc. Synthesis of terfenadine and derivatives
FR2776302B1 (en) * 1998-03-19 2002-04-12 Hoechst Marion Roussel Inc NEW PROCESS FOR THE PREPARATION OF FEXOFENADINE
JP2002519411A (en) * 1998-07-02 2002-07-02 アベンティス・ファーマスーティカルズ・インコーポレイテツド Novel antihistamine piperidine derivatives and intermediates for their preparation
US6689898B2 (en) 1998-07-02 2004-02-10 Aventis Pharmaceuticals Inc. Antihistaminic piperidine derivatives and intermediates for the preparation thereof
US6683094B2 (en) 1998-07-02 2004-01-27 Aventis Pharmaceuticals Inc. Antihistaminic piperidine derivatives and intermediates for the preparation thereof
AU2007200674C1 (en) * 1998-07-02 2011-02-24 Aventisub Llc Novel antihistaminic piperidine derivatives and intermediates for the preparation thereof
US7018401B1 (en) 1999-02-01 2006-03-28 Board Of Regents, The University Of Texas System Woven intravascular devices and methods for making the same and apparatus for delivery of the same
EP1182193A4 (en) * 1999-04-09 2002-09-11 Mochida Pharm Co Ltd Remedies for neuropathic pain
US6613906B1 (en) * 2000-06-06 2003-09-02 Geneva Pharmaceuticals, Inc. Crystal modification
GB0018691D0 (en) * 2000-07-28 2000-09-20 Rolabo Sl Process
US6613907B2 (en) 2000-11-08 2003-09-02 Amr Technology, Inc. Process for the production of piperidine derivatives with microorganisms
AU2002305162A1 (en) * 2001-04-09 2002-10-21 Teva Pharmaceutical Industries Ltd. Polymorphs of fexofenadine hydrochloride
US20030021849A1 (en) * 2001-04-09 2003-01-30 Ben-Zion Dolitzky Polymorphs of fexofenadine hydrochloride
WO2003104197A1 (en) * 2002-06-10 2003-12-18 Teva Pharmaceutical Industries Ltd. Polymorphic form xvi of fexofenadine hydrochloride
AU2003286352A1 (en) * 2002-12-16 2004-07-09 Ranbaxy Laboratories Limited Process for the preparation of fexofenadine
US7648509B2 (en) * 2003-03-10 2010-01-19 Ilion Medical Llc Sacroiliac joint immobilization
WO2005102999A2 (en) * 2004-04-26 2005-11-03 Teva Pharmaceutical Industries Ltd. Crystalline forms of fexofenadine hydrochloride and processes for their preparation
DE102004031849A1 (en) * 2004-06-30 2006-01-26 Sanofi-Aventis Deutschland Gmbh Process for the carbonylation of phenylalkyl derivatives with carbon monoxide
US7498443B2 (en) * 2004-09-17 2009-03-03 Albany Molecular Research, Inc. Process for production of carebastine
US7498345B2 (en) 2004-09-17 2009-03-03 Albany Molecular Research, Inc. Process for production of piperidine derivatives
US20060148851A1 (en) * 2004-09-28 2006-07-06 Shlomit Wizel Fexofenadine crystal form and processes for its preparation thereof
CN100443470C (en) * 2006-07-21 2008-12-17 杭州保灵有限公司 Prepn of ebastine
ITMI20061491A1 (en) * 2006-07-27 2008-01-28 Archimica Srl PROCESS FOR THE PREPARATION OF FEXOPHENADINE.
ITMI20061492A1 (en) * 2006-07-27 2008-01-28 Archimica Srl PROCESS FOR THE PREPARATION OF FEXOPHENADINE.
BRPI0717392A2 (en) 2006-10-22 2013-10-15 Idev Technologies Inc METHODS FOR FIXING WIRE END AND RESULTING DEVICES
KR20130095317A (en) 2006-10-22 2013-08-27 이데브 테크놀로지스, 아이엔씨. Devices and methods for stent advancement
US8367704B2 (en) 2008-02-12 2013-02-05 Yuhan Corporation Process for preparation of 2-methyl-2′ phenylpropionic acid derivatives and novel intermediate compounds
WO2009136412A2 (en) * 2008-04-25 2009-11-12 Matrix Laboratories Limited PROCESS FOR PREPARATION OF 4-[4-(4-(HYDROXYDIPHENYLMETHYL)- 1-PIPERIDINYL]-1-OXOBUTYL]-α,α-DIMETHYLBENZENE ACETIC ACID METHYL ESTER AND USE THEREOF
EP2218763A3 (en) * 2009-02-14 2016-07-06 Merck Patent GmbH Optical compensation films
CN101585805B (en) * 2009-06-06 2011-07-06 浙江大学宁波理工学院 Preparation method of an antiallergic agent fexofenadine hydrochloride
CN101585764B (en) * 2009-06-06 2012-02-15 浙江大学宁波理工学院 Method for synthesizing 2-[4-(4-chlorobutyryl)phenyl]-2-methylpropanoic acid
CN101585782B (en) * 2009-06-06 2012-04-25 浙江大学宁波理工学院 Method for synthesizing N-methyl-N-methoxy-2-(4-cyclopropoxycarbonylphenyl)-2-methacrylamide
CN101585763B (en) * 2009-06-06 2012-01-04 浙江大学宁波理工学院 Method for synthesizing 2-[4-(4-chlorobutyryl)phenyl]-2-methylpropanoic acid
CN101585762B (en) * 2009-06-06 2012-12-19 浙江大学宁波理工学院 Method for synthesizing 2-(4-cyclopropoxycarbonylphenyl)-2-methylpropanoic acid
CN101585768B (en) * 2009-06-06 2012-01-04 浙江大学宁波理工学院 Method for synthesizing 2-[4-(4-chlorobutyryl)phenyl]-2-methacrylate
CN101585767B (en) * 2009-06-06 2012-02-15 浙江大学宁波理工学院 Method for synthesizing 2-[4-(4-chlorobutyryl)phenyl]-2-methacrylate
EP2289867A3 (en) 2009-08-19 2012-04-25 Jubilant Organosys Limited A process for producing 4-(4-halo-1-oxybutyl)-alpha,alpha-dimethylbenzene acetic acid or alkyl esters thereof
CN101671292B (en) * 2009-10-10 2011-09-07 浙江大学宁波理工学院 Synthetic method of fexofenadine hydrochloride
CN102070512B (en) * 2009-11-21 2014-11-19 浙江华海药业股份有限公司 Synthesizing route and preparation method of high-purity fexofenadine and intermediate thereof
EP2371817A1 (en) * 2010-04-01 2011-10-05 Arevipharma GmbH Process for the preparation of 1-[4-(1,1-dimethylethyl)phenyl]-4-[4-(diphenylmethoxy)-1-piperidinyl]-1-butanone and acid addition salts thereof
US9023095B2 (en) 2010-05-27 2015-05-05 Idev Technologies, Inc. Stent delivery system with pusher assembly
CN104557671B (en) * 2013-10-10 2018-04-13 池州东升药业有限公司 A kind of synthetic method of fexofenadine and intermediate
ITMI20132039A1 (en) * 2013-12-06 2015-06-07 Dipharma Francis Srl "METHOD FOR THE PREPARATION OF SYNTHETIC INTERMEDIATES"
PL3247699T3 (en) 2015-01-22 2019-11-29 Sanofi Aventis Deutschland Process for the production of 2-[4-(cyclopropanecarbonyl)phenyl]-2-methyl-propanenitrile
US10696633B2 (en) * 2015-10-22 2020-06-30 Sanofi-Aventis Deutschland Gmbh Process for the preparation of fexofenadine and of intermediates used therein
CN106380441B (en) * 2016-08-29 2020-08-14 上海雅本化学有限公司 Synthetic method of fexofenadine intermediate
CN112513001A (en) 2018-07-27 2021-03-16 株式会社可乐丽 Method for producing 2-methyl-1-acyloxy-2-propene
CN109212055B (en) * 2018-08-19 2021-05-07 丁立平 Gas chromatography-mass spectrometry combined method for determining four trace monohalogenated phenylacetic acids in drinking water
CN112047829B (en) * 2020-08-31 2023-05-26 成都艾必克医药科技有限公司 Synthesis method of alcaine intermediate 2- (4-ethyl-3-iodophenyl) -2-methylpropanoic acid
CN114621083A (en) * 2022-03-30 2022-06-14 西安万隆制药股份有限公司 Antihistamine medicine fexofenadine hydrochloride impurity and synthesis method and application thereof

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402840A (en) 1967-02-24 1968-09-24 Case Co J I Loader bucket control
US4028404A (en) 1967-07-31 1977-06-07 Allen & Hanburys Limited Acetic acid derivatives
GB1242169A (en) 1969-04-09 1971-08-11 Ucb Sa Piperidine derivatives
US3839431A (en) 1970-07-13 1974-10-01 Squibb & Sons Inc Cyclopropylmethylphenylacetic acids and derivatives
US3898271A (en) 1971-06-08 1975-08-05 Squibb & Sons Inc Cyclopropylmethylphenylacetic acids and derivatives
BE794598A (en) 1972-01-28 1973-05-16 Richardson Merrell Inc NEW OLEFINIC DERIVATIVES OF PIPERIDINES SUBSTITUTED IN 4 AND THEIR PREPARATION PROCESS
US3878217A (en) 1972-01-28 1975-04-15 Richardson Merrell Inc Alpha-aryl-4-substituted piperidinoalkanol derivatives
BE794596A (en) 1972-01-28 1973-05-16 Richardson Merrell Inc SUBSTITUTED PIPERIDINOALCANONE OXIMES AND THEIR PREPARATION PROCESS
US3965257A (en) 1972-01-28 1976-06-22 Richardson-Merrell Inc. Compositions and methods for the treatment of the symptoms of histamine induced allergic reactions
US3806526A (en) 1972-01-28 1974-04-23 Richardson Merrell Inc 1-aroylalkyl-4-diphenylmethyl piperidines
GB1442707A (en) * 1973-07-07 1976-07-14 Yoshitomi Pharmaceutical Substituted phenylalkanoic acids and their derivatives and pharma ceutical compositions thereof
US3931197A (en) 1974-02-08 1976-01-06 Richardson-Merrell Inc. Substituted piperidine derivatives
US3941795A (en) 1974-02-08 1976-03-02 Richardson-Merrell Inc. α-ARYL-4-SUBSTITUTED PIPERIDINOALKANOL DERIVATIVES
US3946022A (en) 1974-03-04 1976-03-23 Richardson-Merrell Inc. Piperidine derivatives
US3922276A (en) 1974-12-11 1975-11-25 Robins Co Inc A H 1-Substituted-4-benzylidenepiperidines
US3956296A (en) 1974-12-11 1976-05-11 A. H. Robins Company, Incorporated 1-Substituted-4-benzylpiperidines
GB1559977A (en) * 1975-11-25 1980-01-30 Ici Ltd Amines
JPS5835519B2 (en) * 1976-01-16 1983-08-03 ウェルファイド株式会社 Isodoridine derivative
DD141422A5 (en) 1978-01-27 1980-04-30 Schering Ag PROCESS FOR THE PREPARATION OF PHENYL ACID DERIVATIVES
JPS55124742A (en) * 1979-03-20 1980-09-26 Kyowa Hakko Kogyo Co Ltd Novel aminoalcohol derivative
US4285957A (en) * 1979-04-10 1981-08-25 Richardson-Merrell Inc. 1-Piperidine-alkanol derivatives, pharmaceutical compositions thereof, and method of use thereof
US4254130A (en) 1979-04-10 1981-03-03 Richardson-Merrell Inc. Piperidine derivatives
US4254129A (en) * 1979-04-10 1981-03-03 Richardson-Merrell Inc. Piperidine derivatives
US4285958A (en) * 1979-04-10 1981-08-25 Richardson-Merrell Inc. 1-Piperidine-alkylene ketones, pharmaceutical compositions thereof and method of use thereof
US4407023A (en) 1981-06-29 1983-10-04 Norton C W Two-piece snap-together floor and ceiling plate
JPS588081A (en) * 1981-07-03 1983-01-18 Yoshitomi Pharmaceut Ind Ltd Phenylacetic acid derivative
JPS58164801A (en) 1982-03-20 1983-09-29 新日本製鐵株式会社 Crane rail excellent in damage resistance
US4434182A (en) 1982-11-01 1984-02-28 Fmc Corporation Insecticidal substituted-biphenylmethyl oxime ethers
US4452985A (en) * 1983-02-14 1984-06-05 American Home Products Corporation 2-Guanyl-4-(substituted phenyl) thiazole derivatives
GB8321157D0 (en) * 1983-08-05 1983-09-07 Fordonal Sa Piperidine derivatives
JPS60115547A (en) * 1983-11-29 1985-06-22 Nissan Chem Ind Ltd P-(halomethyl)phenyl ketone and its production
US4563254A (en) * 1985-02-07 1986-01-07 Texaco Inc. Means and method for the electrochemical carbonylation of nitrobenzene or 2-5 dinitrotoluene with carbon dioxide to provide a product
FR2586710B1 (en) 1985-09-05 1990-03-30 Poudres & Explosifs Ste Nale ORGANIC ELECTROLYSIS CELL WITH CONSUMABLE ELECTRODE
US4742175A (en) 1986-05-07 1988-05-03 Merrell Dow Pharmaceuticals Inc. Preparation of polymorphically pure terfenadine
DE3724923A1 (en) * 1987-07-28 1989-02-09 Boehringer Mannheim Gmbh NEW SULFUR COMPOUNDS, METHOD FOR THEIR PRODUCTION AND MEDICINAL PRODUCTS
DE3730718A1 (en) * 1987-09-12 1989-03-23 Basf Ag TETRACYCLIC CHINAZOLE DERIVATIVES, PRODUCTION AND USE
CA2015949A1 (en) 1989-05-22 1990-11-22 Yasuo Ito Piperidine derivative, method for preparation thereof, and a pharmaceutical composition comprising the same
US4990658B1 (en) 1989-12-18 1994-08-30 Ethyl Corp Process for preparing ibuprofen and its alkyl esters
JPH05287193A (en) * 1992-02-12 1993-11-02 Kawasaki Steel Corp Thermoplastic resin composition
KR100257805B1 (en) 1992-04-10 2000-07-01 슈테펜 엘. 네스비트 Process for piperidine derivatives
DK0571253T3 (en) * 1992-05-19 1999-07-19 Adir Benzimidazole derivatives with antidiabetic and anti-platelet coagulant effect
AU670004B2 (en) * 1993-06-24 1996-06-27 Albany Molecular Research, Inc. Piperidine derivatives and process for their production
US6147216A (en) * 1993-06-25 2000-11-14 Merrell Pharmaceuticals Inc. Intermediates useful for the preparation of antihistaminic piperidine derivatives
EP2261207A1 (en) * 1993-06-25 2010-12-15 Aventisub II Inc. Intermediates for the preparation of antihistaminic 4-diphenylmethyl/diphenylmethoxy piperidine derivatives
US6153754A (en) * 1995-12-21 2000-11-28 Albany Molecular Research, Inc. Process for production of piperidine derivatives
US6201124B1 (en) * 1995-12-21 2001-03-13 Albany Molecular Research, Inc. Process for production of piperidine derivatives

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