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Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities

Rimonabant in stock

Cas:168273-06-1

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

Specifications CAS No.: 168273-06-1 Other Names: loss weight Rimonabant MF: C22H21Cl3N4O EINECS No.: 168273-06-1 Place of Origin: Sh

Rimonabant 99%

Cas:168273-06-1

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Xi'an Quanao Biotech Co., Ltd.

Xi’an Quanao Biotech Co., Ltd. with 18 years experience in plant extract filed. Product grade: Medicine, Health care product, Cosmetics, Food, Beverage, Feed. Hot selling market: Europe, North America, South America, Middle East, Asia Pacifi

Loss weight API 99% Rimonabant powder CAS 168273-06-1

Cas:168273-06-1

Min.Order:1 Kilogram

FOB Price: $399.0 / 444.0

Type:Manufacturers

inquiry

Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Factory Price API 99% Rimonabant 168273-06-1 GMP Manufacturer

Cas:168273-06-1

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

Rimonabant

Cas:168273-06-1

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hebei yanxi chemical co.,LTD.

chengdu and import and export trade co., LTD., who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do res

Rimonabant

Cas:168273-06-1

Min.Order:1000 Gram

FOB Price: $2000.0

Type:Trading Company

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin

Rimonabant CAS 168273-06-1

Cas:168273-06-1

Min.Order:1 Kilogram

FOB Price: $3.0 / 10.0

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

TIANFUCHEM--168273-06-1--High purity Rimonabant factory price Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had established stable business

TIANFUCHEM--168273-06-1--High purity Rimonabant factory price

Cas:168273-06-1

Min.Order:1 Metric Ton

FOB Price: $2000.0

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by email in time prod

R imonabant

Cas:168273-06-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Langyou International Trading Co., Ltd

Our Adwantage: 1.We have stock so we can delivery quickly at the very day when receive the payment. 2.Best price, first class service, high successful delivery rate. A discount would be given when you make a large order. 3.High quality gua

Shanghai Upbio Tech Co.,Ltd

Name: Rimonabant Cas: 168273-06-1 Appearance: white powder Capacity:1MT/year Application: pharmaceutical raw material Assay: min99% Standard: enterprise Brand: WEDOCHEM Synonyms 5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-N-pi

High quality Rimonabant CAS NO.168273-06-1

Cas:168273-06-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Xi'an Faithful Biotech Co., Ltd.

We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery

High Quality Weight Loss Raw Powder Rimonabant / 99% Rimonabant Raw Material Powder

Cas:168273-06-1

Min.Order:10 Gram

FOB Price: $5.0

Type:Trading Company

inquiry

Baoji Guokang Healthchem co.,ltd

1.Strong backup of factory:hign ability,favorable quality and competitive price. 2.Most of our products in catalogue are have stock. 3.Free sample could be provided. 4.Suitable package to protect the product the product quality. 5.the lead time

Hot selling,Rimonabant

Cas:168273-06-1

Min.Order:5 Gram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Rimonabant CAS: 168273-06-1 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermediate

Rimonabant CAS: 168273-06-1

Cas:168273-06-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Terui OP New Material Technology Co., Ltd.

We generally use secure shipping methods that do not require you to do any customs clearance. Free shipping to your address without worrying about any customs issues. We have a professional customs clearance team to 100% guarantee the safe delivery o

Manufacturer Supply High Quality CAS 168273-06-1 Rimonabant

Cas:168273-06-1

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Wuhan Wonda Pharm Limited

1.high quality: quality is life. quality is the most important element for all goods. we have a lab doing research in wuhan china. hplc and nmr is available if needed. 2.reasonable price: we provide high quality products wi

Raw Material Lose Weight Rimonabant Steroid Powder CAS 168273-06-1

Cas:168273-06-1

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

CAS NO.:168273-06-1

Cas:168273-06-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanxi Ankesi Biotechnology Co., Ltd

Our Advantage 1. Rich experience We specialize in this filed for many years, our APIs exported to all over the world and and we established long friendly relations of cooperation with our clients. 2. Great quality,purity and favorable Good qual

Hot selling Rimonabant CAS 168273-06-1 AKS

Cas:168273-06-1

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Triumph International Development Limilted

Appearance:white or light yellow crystalline powder Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:By

Rimonabant

Cas:168273-06-1

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

RIMONABAND

Cas:168273-06-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

Rimonabant

Cas:168273-06-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Miheng Trading Co., Ltd.

Rimonabant CAS 168273-06-1 Our advantage 1.Top quality: Using high quality material and establishing a strict quality control system,assigning specific persons in charge of each part of production,from raw material purchase to assembly. 2 P

Rimonabant CAS 168273-06-1

Cas:168273-06-1

Min.Order:1 Kilogram

FOB Price: $10.0 / 50.0

Type:Trading Company

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply Rimonabant

Cas:168273-06-1

Min.Order:0 Metric Ton

Negotiable

Type:Other

inquiry

Hefei Zhaobo Technology Co., Ltd.

Rimonabant CAS 168273-06-1 Description Purity: 99% Min Application: Intermediates Appearance: Powder Package: Bag Delivery: 3-5days Our Advantage & Service 1.Top quality: Using high quality material and establishing a strict qualit

Rimonabant CAS 168273-06-1

Cas:168273-06-1

Min.Order:1 Kilogram

FOB Price: $10.0 / 50.0

Type:Trading Company

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

Rimonabant

Cas:168273-06-1

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

High purity Rimonabant

Cas:168273-06-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages High purity, all above 98.5%, no impurities after dissolution We will test each batch to ensure quality OEM and private brand services designed for free Various cap colors available We can also provide MT1 peptide powd

Rimonabant

Cas:168273-06-1

Min.Order:1 Kilogram

FOB Price: $50.0 / 100.0

Type:Trading Company

inquiry

Jiangsu Qianyu Molecular Technology Co., LTD.

Our Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an

Best OfferRimonabant

Cas:168273-06-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,

rimonabant

Cas:168273-06-1

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Henan Kanbei Chemical Co.,LTD

High quality, competitive price, fast delivery and first-class service we possesses have won the trust and praise of customers. Standard: BP/USP/EP The purity is equal or greater than 99%. As a supplier, we can provide high-quality products. Cle

Rimonabant.99%

Cas:168273-06-1

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

rimonabant hydrochloride
158681-13-1

rimonabant hydrochloride

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With methanol; potassium hydroxide; water at 0 - 5℃; for 1h;93%
With sodium hydroxide In methanol; water pH=8.5;
With sodium hydroxide In methanol; water at 28 - 30℃; for 0.666667h; pH=11;
1-Aminopiperidine
2213-43-6

1-Aminopiperidine

ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate
158941-22-1

ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With trimethylaluminum In tetrahydrofuran; toluene at 125℃; for 0.0333333h;88%
magnesium chloride In acetonitrile for 2h; Product distribution / selectivity; Heating / reflux;83%
magnesium bromide In tetrahydrofuran for 2h; Product distribution / selectivity; Heating / reflux;81%
5-(4-Chloro-phenyl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid methyl ester
168272-78-4

5-(4-Chloro-phenyl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid methyl ester

1-Aminopiperidine
2213-43-6

1-Aminopiperidine

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
magnesium chloride In tetrahydrofuran for 2h; Product distribution / selectivity; Heating / reflux;82%
magnesium chloride In acetonitrile for 2h; Product distribution / selectivity; Heating / reflux;80%
magnesium bromide In tetrahydrofuran for 2h; Product distribution / selectivity; Heating / reflux;79%
1-Aminopiperidine
2213-43-6

1-Aminopiperidine

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride
168273-05-0

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 12h;79%
With triethylamine In dichloromethane at 20℃; for 1.5h; Substitution;66%
With triethylamine Yield given;
phenyl 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxylate
1030616-35-3

phenyl 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxylate

1-Aminopiperidine
2213-43-6

1-Aminopiperidine

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
magnesium chloride In acetonitrile for 2h; Product distribution / selectivity; Heating / reflux;77%
magnesium chloride In acetonitrile at 80℃; for 2 - 4h; Product distribution / selectivity;
N-aminopiperidine hydrochloride
63234-70-8

N-aminopiperidine hydrochloride

ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate
158941-22-1

ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With triethylamine; magnesium chloride In acetonitrile for 4h; Product distribution / selectivity; Heating / reflux;77%
Stage #1: N-aminopiperidine hydrochloride With potassium tert-butylate In acetonitrile at 20℃; for 0.5h;
Stage #2: ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate; magnesium chloride In acetonitrile for 4h; Product distribution / selectivity; Heating / reflux;
61%
N-aminopiperidine hydrogen sulphate
1030616-37-5

N-aminopiperidine hydrogen sulphate

ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate
158941-22-1

ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With triethylamine; magnesium chloride In acetonitrile for 4h; Product distribution / selectivity; Heating / reflux;77%
1-Aminopiperidine
2213-43-6

1-Aminopiperidine

rimonabant acid
162758-35-2

rimonabant acid

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Stage #1: rimonabant acid With benzotriazol-1-ol In dichloromethane for 0.166667h;
Stage #2: With dicyclohexyl-carbodiimide In dichloromethane at 25℃;
Stage #3: 1-Aminopiperidine Further stages;
72%
With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 72h;68%
Stage #1: rimonabant acid With thionyl chloride In methyl cyclohexane at 83℃; for 3h; Heating / reflux;
Stage #2: With triethylamine In tetrahydrofuran; methyl cyclohexane at 12 - 20℃; for 0.25h;
Stage #3: 1-Aminopiperidine With triethylamine In tetrahydrofuran; methyl cyclohexane at 12 - 20℃; Product distribution / selectivity;
With 1,1'-carbonyldiimidazole In tetrahydrofuran at 65 - 70℃; for 2.33333h; Product distribution / selectivity;
With boric acid In toluene at 29 - 112℃; for 12.83h; Product distribution / selectivity;
5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxylic acid(2,6-benzotriazolyl-piperidin-1-yl)amide
1040405-33-1

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxylic acid(2,6-benzotriazolyl-piperidin-1-yl)amide

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With sodium tetrahydroborate In tetrahydrofuran at 20℃;46%
1-Aminopiperidine
2213-43-6

1-Aminopiperidine

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride
168273-05-0

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride

A

rimonabant
168273-06-1

rimonabant

B

N-(piperidin-1-yl)-3-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-5-carboxamide

N-(piperidin-1-yl)-3-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-5-carboxamide

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 2h;A 11.5 g
B 645 mg
4-(4-chlorophenyl)-3-methyl-2,4-dioxo-N-piperidin-1-yl-butyramide
952734-85-9

4-(4-chlorophenyl)-3-methyl-2,4-dioxo-N-piperidin-1-yl-butyramide

2,4-dichlorophenyl hydrazine hydrochloride
5446-18-4

2,4-dichlorophenyl hydrazine hydrochloride

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
In ethanol for 8h; Product distribution / selectivity;
5-(4-chloro-phenyl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid benzotriazol-1-yl ester
952734-87-1

5-(4-chloro-phenyl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid benzotriazol-1-yl ester

1-Aminopiperidine
2213-43-6

1-Aminopiperidine

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With potassium carbonate In dichloromethane at 30℃; for 0.5h; Product distribution / selectivity;
N-piperidino-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-3-pyrazole carboxamide fumarate
169544-43-8

N-piperidino-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-3-pyrazole carboxamide fumarate

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With sodium hydroxide; water; polyoxyethylene sorbitan monostearate at 30 - 40℃; for 4h; pH=9; Polyoxyethylene; Product distribution / selectivity;
With sodium hydroxide; polyoxyethylene sorbitan monooleate In water at 25 - 40℃; for 4h; pH=9; Product distribution / selectivity;
N-piperidino-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-3-pyrazole carboxamide hydrogensulphate
169544-44-9

N-piperidino-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-3-pyrazole carboxamide hydrogensulphate

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With ammonia; water at 25 - 30℃; for 4h; pH=9; Product distribution / selectivity;
With ammonia; water at 25 - 30℃; for 4h; pH=9; Product distribution / selectivity;
4'-chloropropiophenone
6285-05-8

4'-chloropropiophenone

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: 65 percent / LDA; potassium t-butoxide / diethyl ether; tetrahydrofuran; heptane / 2.5 h / 20 °C
2.1: HCl / H2O; CH2Cl2
3.1: ethanol / 2.5 h / Heating
3.2: 89 percent / NaOH / ethanol / 2 h / Heating
4.1: 94 percent / SOCl2 / toluene / 6 h / Heating
5.1: 11.5 g / triethylamine / CH2Cl2 / 2 h / 20 °C
View Scheme
Multi-step reaction with 4 steps
1.1: lithium hexamethyldisilazane / methyl cyclohexane / 3 h / 20 °C
1.2: 16 h
1.3: Cooling with ice; Reflux
2.1: potassium hydroxide / ethanol / 12 h / 50 °C
3.1: thionyl chloride / toluene / 2.5 h / 110 °C
4.1: N-ethyl-N,N-diisopropylamine / chloroform / 4 h / 0 - 20 °C
View Scheme
Multi-step reaction with 4 steps
1.1: lithium hexamethyldisilazane / methyl cyclohexane / 2.5 h / 15 - 25 °C / Inert atmosphere
1.2: Inert atmosphere
2.1: sulfuric acid / ethanol; water / 14 h / 79 °C / Inert atmosphere
3.1: N,N-dimethyl-formamide / toluene / 0 °C / Inert atmosphere
3.2: 4 h / 100 °C / Inert atmosphere
4.1: triethylamine / dichloromethane / 0 - 20 °C / Inert atmosphere
View Scheme
4-(4-chlorophenyl)-3-methyl-2,4-dioxobutyric acid ethyl ester
169544-41-6

4-(4-chlorophenyl)-3-methyl-2,4-dioxobutyric acid ethyl ester

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: ethanol / 2.5 h / Heating
1.2: 89 percent / NaOH / ethanol / 2 h / Heating
2.1: 94 percent / SOCl2 / toluene / 6 h / Heating
3.1: 11.5 g / triethylamine / CH2Cl2 / 2 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
2.1: propionic acid / 16 h / Heating / reflux
2.2: 20 h / 140 - 145 °C
View Scheme
Multi-step reaction with 2 steps
1: triethylamine / 3 h
2: ethanol / 8 h
View Scheme
rimonabant acid
162758-35-2

rimonabant acid

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 94 percent / SOCl2 / toluene / 6 h / Heating
2: 11.5 g / triethylamine / CH2Cl2 / 2 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1: DMF / CH2Cl2 / 3 h / 20 °C
2: 66 percent / triethylamine / CH2Cl2 / 1.5 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1: thionyl chloride / toluene / 2.5 h / 110 °C
2: N-ethyl-N,N-diisopropylamine / chloroform / 4 h / 0 - 20 °C
View Scheme
(Z)-4-(4-chloro-phenyl)-2-hydroxy-3-methyl-4-oxo-but-2-enoic acid ethyl ester lithium salt

(Z)-4-(4-chloro-phenyl)-2-hydroxy-3-methyl-4-oxo-but-2-enoic acid ethyl ester lithium salt

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: HCl / H2O; CH2Cl2
2.1: ethanol / 2.5 h / Heating
2.2: 89 percent / NaOH / ethanol / 2 h / Heating
3.1: 94 percent / SOCl2 / toluene / 6 h / Heating
4.1: 11.5 g / triethylamine / CH2Cl2 / 2 h / 20 °C
View Scheme
4'-chloropropiophenone
6285-05-8

4'-chloropropiophenone

lithium-bromoacetate

lithium-bromoacetate

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: 95 percent / bromine / acetic acid / 1.5 h / 5 - 20 °C
2: 42 percent / NaH / tetrahydrofuran / 1.5 h / Heating
3: sodium / ethanol / 2.5 h / 0 °C
4: 45 percent / NaOH / ethanol / 1.5 h / Alkaline hydrolysis
5: DMF / CH2Cl2 / 3 h / 20 °C
6: 66 percent / triethylamine / CH2Cl2 / 1.5 h / 20 °C
View Scheme
2-bromo-1-(4-chlorophenyl)-1-propanone
877-37-2

2-bromo-1-(4-chlorophenyl)-1-propanone

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 42 percent / NaH / tetrahydrofuran / 1.5 h / Heating
2: sodium / ethanol / 2.5 h / 0 °C
3: 45 percent / NaOH / ethanol / 1.5 h / Alkaline hydrolysis
4: DMF / CH2Cl2 / 3 h / 20 °C
5: 66 percent / triethylamine / CH2Cl2 / 1.5 h / 20 °C
View Scheme
2,4-Dichloroaniline
554-00-7

2,4-Dichloroaniline

2-chloro-trans-cinnamoyl chloride

2-chloro-trans-cinnamoyl chloride

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 24 percent HCl; NaNO2 / H2O / 0 - 5 °C
2: sodium / ethanol / 2.5 h / 0 °C
3: 45 percent / NaOH / ethanol / 1.5 h / Alkaline hydrolysis
4: DMF / CH2Cl2 / 3 h / 20 °C
5: 66 percent / triethylamine / CH2Cl2 / 1.5 h / 20 °C
View Scheme
2,4-dichlorophenyldiazonium chloride
13617-98-6

2,4-dichlorophenyldiazonium chloride

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: sodium / ethanol / 2.5 h / 0 °C
2: 45 percent / NaOH / ethanol / 1.5 h / Alkaline hydrolysis
3: DMF / CH2Cl2 / 3 h / 20 °C
4: 66 percent / triethylamine / CH2Cl2 / 1.5 h / 20 °C
View Scheme
ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate
158941-22-1

ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 45 percent / NaOH / ethanol / 1.5 h / Alkaline hydrolysis
2: DMF / CH2Cl2 / 3 h / 20 °C
3: 66 percent / triethylamine / CH2Cl2 / 1.5 h / 20 °C
View Scheme
Multi-step reaction with 3 steps
1: potassium hydroxide / ethanol / 12 h / 50 °C
2: thionyl chloride / toluene / 2.5 h / 110 °C
3: N-ethyl-N,N-diisopropylamine / chloroform / 4 h / 0 - 20 °C
View Scheme
Multi-step reaction with 3 steps
1: potassium hydroxide; water / methanol / 3 h / Heating / reflux
2: thionyl chloride / toluene / 3 h / Heating / reflux
3: triethylamine / dichloromethane / 3 h / 0 - 20 °C
View Scheme
ethyl [2-acetyl-4-(4-chlorophenyl)-3-methyl-4-oxo]butyrate
162758-34-1

ethyl [2-acetyl-4-(4-chlorophenyl)-3-methyl-4-oxo]butyrate

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: sodium / ethanol / 2.5 h / 0 °C
2: 45 percent / NaOH / ethanol / 1.5 h / Alkaline hydrolysis
3: DMF / CH2Cl2 / 3 h / 20 °C
4: 66 percent / triethylamine / CH2Cl2 / 1.5 h / 20 °C
View Scheme
1,5-dibromo-pentane
111-24-0

1,5-dibromo-pentane

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbohydrazide
443141-90-0

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbohydrazide

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With sodium carbonate In acetonitrile for 45h; Heating / reflux;
1-Aminopiperidine
2213-43-6

1-Aminopiperidine

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride
168273-05-0

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride

A

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxylic acid [5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbonyl]piperidin-1-yl-amide
1028183-02-9

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxylic acid [5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carbonyl]piperidin-1-yl-amide

B

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
With potassium carbonate In dichloromethane at 10 - 30℃; Product distribution / selectivity;
1-Aminopiperidine
2213-43-6

1-Aminopiperidine

ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate
158941-22-1

ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxylate

A

rimonabant acid
162758-35-2

rimonabant acid

B

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
magnesium chloride In tetrahydrofuran at 80℃; for 2 - 4h; Product distribution / selectivity;
magnesium chloride In acetonitrile at 80℃; for 2 - 4h; Product distribution / selectivity;
magnesium chloride at 80℃; for 2 - 4h; Product distribution / selectivity;
5-(4-Chloro-phenyl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid methyl ester
168272-78-4

5-(4-Chloro-phenyl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid methyl ester

1-Aminopiperidine
2213-43-6

1-Aminopiperidine

A

rimonabant acid
162758-35-2

rimonabant acid

B

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
magnesium chloride In acetonitrile at 80℃; for 2 - 4h; Product distribution / selectivity;
phenyl 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxylate
1030616-35-3

phenyl 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxylate

1-Aminopiperidine
2213-43-6

1-Aminopiperidine

A

rimonabant acid
162758-35-2

rimonabant acid

B

rimonabant
168273-06-1

rimonabant

Conditions
ConditionsYield
In acetonitrile at 80℃; for 2 - 4h; Product distribution / selectivity;
propan-1-ol
71-23-8

propan-1-ol

rimonabant
168273-06-1

rimonabant

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-N-(piperidin-1-yl)pyrazole-3-carboxamide n-propanol solvate

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-N-(piperidin-1-yl)pyrazole-3-carboxamide n-propanol solvate

Conditions
ConditionsYield
at 4 - 20℃; Heating / reflux;100%
at 5 - 50℃; for 5h;
N-aminopiperidine hydrochloride
63234-70-8

N-aminopiperidine hydrochloride

rimonabant acid
162758-35-2

rimonabant acid

rimonabant
168273-06-1

rimonabant

rimonabant hydrochloride
158681-13-1

rimonabant hydrochloride

Conditions
ConditionsYield
Stage #1: rimonabant acid With 1,1'-carbonyldiimidazole In tetrahydrofuran at 20℃; for 6h;
Stage #2: N-aminopiperidine hydrochloride With triethylamine In tetrahydrofuran at 60℃; for 1.5h;
Stage #3: rimonabant With hydrogenchloride
92.7%
1,3-dibromo-propane
109-64-8

1,3-dibromo-propane

rimonabant
168273-06-1

rimonabant

bromopropyl-[N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide]

bromopropyl-[N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide]

Conditions
ConditionsYield
With potassium carbonate In acetonitrile at 20℃; for 16h; Reflux; Inert atmosphere;70%
ethyl bromoacetate
105-36-2

ethyl bromoacetate

rimonabant
168273-06-1

rimonabant

1'-ethylacetyl-[N-(piperidinyl-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide]

1'-ethylacetyl-[N-(piperidinyl-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide]

Conditions
ConditionsYield
With potassium carbonate In acetonitrile for 48h; Reflux; Inert atmosphere;55%
rimonabant
168273-06-1

rimonabant

6,9-dichloro-3-methyl-pyrazolo[1,5-f]phenanthridine-2-carboxylic acid piperidin-1-ylamide

6,9-dichloro-3-methyl-pyrazolo[1,5-f]phenanthridine-2-carboxylic acid piperidin-1-ylamide

Conditions
ConditionsYield
In acetonitrile for 2.5h; Irradiation;42%
rimonabant
168273-06-1

rimonabant

A

N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichloro-6-iodophenyl)-4-methyl-1H-pyrazole-3-carboxamide
170937-36-7

N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichloro-6-iodophenyl)-4-methyl-1H-pyrazole-3-carboxamide

B

N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichloro-3-iodophenyl)-4-methyl-1H-pyrazole-3-carboxamide

N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichloro-3-iodophenyl)-4-methyl-1H-pyrazole-3-carboxamide

Conditions
ConditionsYield
With n-butyllithium; 1,10-Phenanthroline; 1-chloro-2-iodoethane In diethyl ether at -78 - 20℃;A 17%
B 14%
rimonabant
168273-06-1

rimonabant

N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichloro-6-iodophenyl)-4-methyl-1H-pyrazole-3-carboxamide
170937-36-7

N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-(2,4-dichloro-6-iodophenyl)-4-methyl-1H-pyrazole-3-carboxamide

Conditions
ConditionsYield
With n-butyllithium; 1-chloro-2-iodoethane In diethyl ether at -15℃;
rimonabant
168273-06-1

rimonabant

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-N-(piperidin-1-yl)pyrazole-3-carboxamide hydrate
945634-91-3

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-N-(piperidin-1-yl)pyrazole-3-carboxamide hydrate

Conditions
ConditionsYield
Stage #1: rimonabant In dichloromethane at 25 - 30℃; for 0.166667h;
Stage #2: With water at 25 - 30℃; for 1h; Product distribution / selectivity;
With water In acetone at 25 - 50℃; for 6h; Product distribution / selectivity;
With water In methanol at 25 - 55℃; for 2h; Product distribution / selectivity;
rimonabant
168273-06-1

rimonabant

butan-1-ol
71-36-3

butan-1-ol

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-N-(piperidin-1-yl)pyrazole-3-carboxamide n-butanol solvate

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-N-(piperidin-1-yl)pyrazole-3-carboxamide n-butanol solvate

Conditions
ConditionsYield
at 5 - 50℃; for 5h;
rimonabant
168273-06-1

rimonabant

N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-([6-3H]-2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide

N-(piperidin-1-yl)-5-(4-chlorophenyl)-1-([6-3H]-2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 17 percent / n-butyllithium; 1-chloro-2-iodoethane; 1,10-phenanthroline / diethyl ether / -78 - 20 °C
2: tritium; Et3N / 10 percent Pd-C / ethanol / 3.5 h
View Scheme

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