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Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

Montelukast

Cas:158966-92-8

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality Montelukastl supplier in China

Cas:158966-92-8

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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 Montelukastl

Cas:158966-92-8

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Type:Other

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Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be sent

Montelukast

Cas:158966-92-8

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

China factory supplyCAS 158966-92-8 with best quality

Cas:158966-92-8

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after the dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available &diam

Montelukast CAS158966-92-8

Cas:158966-92-8

Min.Order:1 Metric Ton

FOB Price: $7.0 / 10.0

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Henan Sinotech Import&Export Corporation

Name: Montelukast Synonyms: Montelukas CAS:158966-92-8 MF: C35H36ClNO3S Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application: Pharmaceutical Intermediate Transportation:By sea or by air Po

Montelukast

Cas:158966-92-8

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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Shijiazhuang Sdyano Fine Chemical Co., Ltd

1. Best prices with satisfied quality; 2. It's clients' right to choose the package's Courier (EMS, DHL, FedEx, UPS); 3.It's clients' right to choose the packing way for his produccts from many recent effective packing ways;

Montelukast

Cas:158966-92-8

Min.Order:0 Metric Ton

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Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

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 emai

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

Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

Montelukast

Cas:158966-92-8

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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

MONTELUKAST

Cas:158966-92-8

Min.Order:1 Gram

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Hangzhou Lingrui Chemical Co.,Ltd.

158966-92-8 Montelukast Appearance:white powder Storage:room temperature Package:according to customers' requirements Application:Pharma intermediates Transportation:By air(EMS or EUB or FedEx or TNT ect...) or by sea(FOB or CIF or CNF ect...)or ac

158966-92-8 Montelukast

Cas:158966-92-8

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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

Montelukast

Cas:158966-92-8

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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

High quality Montelukastl

Cas:158966-92-8

Min.Order:10 Gram

FOB Price: $100.0

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HANGZHOU YUNUO CHEMICAL CO.,LTD

Superior quality, moderate price & quick delivery. Appearance:white crystal powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:10g/bag,or as your request Application:anti-asthma Transportation:as your req

Montelukast.

Cas:158966-92-8

Min.Order:1 Gram

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TaiChem Taizhou Limited

Established in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site

Montelukast

Cas:158966-92-8

Min.Order:10 Gram

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Lyander (Xiamen) Medical Technology Co., LTD

Lyander’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. Lyander can provide different quantities of cu

Montelukast

Cas:158966-92-8

Min.Order:1 Gram

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Henan Tianfu Chemical Co., Ltd.

Montelukast Basic information Product Name: Montelukast Synonyms: (r-(e))-1-(((1-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropaneacetic acid;2-[1-[[(1r)-1-[3-[(e)-2-(7-chloroquinoli

Tianfu Chem 158966-92-8

Cas:158966-92-8

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Siwei Development Group Ltd.

Product name: Montelukast CAS No.:158966-92-8 Molecule Formula:C35H36ClNO3S Molecule Weight:586.18 Purity: 99.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard TESTING ITEMS

Best Quality Montelukast with good supplier

Cas:158966-92-8

Min.Order:1 Kilogram

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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,

Montelukast Manufacturer/High quality/Best price/In stock

Cas:158966-92-8

Min.Order:1 Kilogram

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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,

EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

Montelukast

Cas:158966-92-8

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

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Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology 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 chemicals. W

Montelukast

Cas:158966-92-8

Min.Order:1 Gram

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KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

Montelukast

Cas:158966-92-8

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

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Wuhu Nuowei Chemistry Technologies Co., Ltd.

Wuhu Nuovo Chemical Technology Co., Ltd. was established in August 2014, mainly engaged in the development, production and sales of ionic liquids, ribose, nucleosides, nucleotides and related chemicals; Products are mainly used in new energy, new ma

Montelukast

Cas:158966-92-8

Min.Order:100 Gram

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Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

Montelukast

Cas:158966-92-8

Min.Order:0

Negotiable

Type:Manufacturers

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Hefei Zhaobo Technology Co., Ltd.

Our Advantage Q1:How is the quality We can provide free samples for you to test its quality. Q2:Safest and fastest delivery We have adequate stock so that we can deliver the products with 24 hours as soon as receiving the payment. Fast and discre

Montelukast CAS 158966-92-8

Cas:158966-92-8

Min.Order:1 Kilogram

FOB Price: $10.0

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Suzhou Health Chemicals Co., Ltd.

High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:Active Pharmaceutical I

Montelukast

Cas:158966-92-8

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Synthetic route

1-(mercaptomethyl)cyclopropane acetic acid disodium salt

1-(mercaptomethyl)cyclopropane acetic acid disodium salt

C35H31ClNO5P

C35H31ClNO5P

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: 1-(mercaptomethyl)cyclopropane acetic acid disodium salt; C35H31ClNO5P With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at -5 - 20℃; Inert atmosphere;
Stage #2: With acetic acid In tetrahydrofuran at -5 - 0℃; pH=2 - 3;
98.7%
montransluconate p-aminoacetanilide

montransluconate p-aminoacetanilide

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With acetic acid In dichloromethane; water for 0.25h;98.2%
[R,E]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(methoxycarbonyl)phenyl]propyl]thio]methyl]-cyclopropane acetic acid
851755-56-1

[R,E]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(methoxycarbonyl)phenyl]propyl]thio]methyl]-cyclopropane acetic acid

methylmagnesium chloride
676-58-4

methylmagnesium chloride

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With cerium chloride In tetrahydrofuran at -5 - 65℃; for 3.5h; Inert atmosphere;98%
With cerium(III) chloride In tetrahydrofuran at -5 - 65℃; Product distribution / selectivity; Inert atmosphere;52.3%
In tetrahydrofuran; toluene at 0 - 5℃;
Stage #1: With cerium(III) chloride In tetrahydrofuran at -65 - 20℃; for 3h; Heating / reflux;
Stage #2: methylmagnesium chloride In tetrahydrofuran at -5 - 0℃; for 3h;
Stage #3: [R,E]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(methoxycarbonyl)phenyl]propyl]thio]methyl]-cyclopropane acetic acid With water; acetic acid Product distribution / selectivity; more than 3 stages;
Stage #1: methylmagnesium chloride With cerium(III) chloride In tetrahydrofuran at -5 - 0℃; Inert atmosphere;
Stage #2: [R,E]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(methoxycarbonyl)phenyl]propyl]thio]methyl]-cyclopropane acetic acid In tetrahydrofuran at -5 - 0℃; Inert atmosphere;
(1-[(1(R)-(3-((E)-2-(7-chloroquinolin-2-yl)ethenyl)phenyl)-3-(2-(1-tetrahydropyran-2-yloxy-1-methylethyl)phenyl)propyl)thiomethyl]cyclopropyl)acetic acid adamantylamine salt
950665-85-7

(1-[(1(R)-(3-((E)-2-(7-chloroquinolin-2-yl)ethenyl)phenyl)-3-(2-(1-tetrahydropyran-2-yloxy-1-methylethyl)phenyl)propyl)thiomethyl]cyclopropyl)acetic acid adamantylamine salt

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With hydrogenchloride In dichloromethane; water at 20℃; for 0.5h;98%
With acetic acid Product distribution / selectivity;
1-(((1-(R)-(3-(2-(E)-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl) thio)methyl)cyclopropaneacetic acid dipropylamine salt
880769-26-6

1-(((1-(R)-(3-(2-(E)-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl) thio)methyl)cyclopropaneacetic acid dipropylamine salt

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With acetic acid In water; isopropyl alcohol at 4 - 40℃; for 17h; Reagent/catalyst; Temperature; Solvent; Inert atmosphere;98%
With acetic acid In dichloromethane; water at 25 - 35℃; Product distribution / selectivity;70.3%
2-[1-(mercaptomethyl)cyclopropyl]acetic acid methyl ester
152922-73-1

2-[1-(mercaptomethyl)cyclopropyl]acetic acid methyl ester

2-[2-[3(S)-[3-[(1E)-2-(7-chloroquinoline-2-yl)ethenyl]phenyl]-3-methanesulfonyloxypropyl]phenyl]-2-propanol
807638-71-7

2-[2-[3(S)-[3-[(1E)-2-(7-chloroquinoline-2-yl)ethenyl]phenyl]-3-methanesulfonyloxypropyl]phenyl]-2-propanol

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With dmap In N,N-dimethyl-formamide at 0 - 20℃; for 2.5h; Inert atmosphere;97.92%
Stage #1: 2-[1-(mercaptomethyl)cyclopropyl]acetic acid methyl ester; 2-[2-[3(S)-[3-[(1E)-2-(7-chloroquinoline-2-yl)ethenyl]phenyl]-3-methanesulfonyloxypropyl]phenyl]-2-propanol With sodium methylate In dimethyl sulfoxide at -5 - 0℃; for 10h;
Stage #2: With water; acetic acid at 10 - 20℃; pH=6.6; Product distribution / selectivity;
Stage #1: 2-[1-(mercaptomethyl)cyclopropyl]acetic acid methyl ester; 2-[2-[3(S)-[3-[(1E)-2-(7-chloroquinoline-2-yl)ethenyl]phenyl]-3-methanesulfonyloxypropyl]phenyl]-2-propanol With sodium hydroxide In ISOPROPYLAMIDE; water at -6 - 38℃;
Stage #2: With tartaric acid In tetrahydrofuran; water pH=3 - 5;
Montelukast sodium
151767-02-1

Montelukast sodium

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With hydrogenchloride In water at 20 - 25℃; for 1h;97%
With hydrogenchloride In water at 20℃; for 1h; pH=6;97.9%
With hydrogenchloride; citric buffer In water; acetone at 20 - 25℃; for 2h;76%
1-[[[(1R)-1-[3-[(1E)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]sulfanyl]methyl]cyclopropaneacetic acid L-(+)-α-phenylglycinol salt
1005743-16-7

1-[[[(1R)-1-[3-[(1E)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]sulfanyl]methyl]cyclopropaneacetic acid L-(+)-α-phenylglycinol salt

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With water; acetic acid In toluene at 35℃; for 0.5h; pH=< 6; Product distribution / selectivity;97%
1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid dicyclohexylamine salt
577953-88-9

1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid dicyclohexylamine salt

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With acetic acid In water; isopropyl alcohol at 4 - 40℃; for 17h; Inert atmosphere;97%
With acetic acid In water; toluene Product distribution / selectivity;86.39%
With acetic acid In water; toluene Product distribution / selectivity;86.39%
methyl magnesium iodide
917-64-6

methyl magnesium iodide

C39H34ClNO4S

C39H34ClNO4S

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: methyl magnesium iodide With lanthanum(III) chloride; lithium chloride In toluene at 0℃; for 2h; Inert atmosphere;
Stage #2: C39H34ClNO4S In tetrahydrofuran; toluene at 0℃; for 3h; Inert atmosphere;
94%
2-(2-(3-(S)-(3-(2-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-diphenylphosphatoxypropyl)phenyl)-2-propanol

2-(2-(3-(S)-(3-(2-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-diphenylphosphatoxypropyl)phenyl)-2-propanol

1-(sulfanylmethyl)cyclopropaneacetic acid
162515-68-6

1-(sulfanylmethyl)cyclopropaneacetic acid

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: 1-(sulfanylmethyl)cyclopropaneacetic acid With 3-ethyl-1-methyl-1H-imidazol-3-ium bromide In dimethyl sulfoxide at 10℃; for 0.0833333h;
Stage #2: With potassium tert-butylate In dimethyl sulfoxide at 10℃; for 0.166667h;
Stage #3: 2-(2-(3-(S)-(3-(2-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-diphenylphosphatoxypropyl)phenyl)-2-propanol In dimethyl sulfoxide at 15 - 17℃; for 1h; Product distribution / selectivity;
93%
C36H36ClNO4S

C36H36ClNO4S

methylmagnesium chloride
676-58-4

methylmagnesium chloride

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: methylmagnesium chloride With zinc(II) chloride In tetrahydrofuran; 2-methyl-propan-1-ol at 5℃; for 0.666667h; Inert atmosphere;
Stage #2: C36H36ClNO4S In tetrahydrofuran for 4h; Inert atmosphere;
92%
2-(1-((((R)-1-(3-((E)-2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)sulfanyl)methyl)cyclopropyl)acetonitrile
866923-62-8

2-(1-((((R)-1-(3-((E)-2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)sulfanyl)methyl)cyclopropyl)acetonitrile

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: 2-(1-((((R)-1-(3-((E)-2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)sulfanyl)methyl)cyclopropyl)acetonitrile With sodium hydroxide; ethanol; water for 15h; Heating / reflux;
Stage #2: With acetic acid In ethanol; water; toluene Product distribution / selectivity;
91%
Stage #1: 2-(1-((((R)-1-(3-((E)-2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)sulfanyl)methyl)cyclopropyl)acetonitrile With sodium hydroxide; ethanol; water for 30h; Heating / reflux;
Stage #2: With water; acetic acid In toluene for 0.5h; pH=5.6; Product distribution / selectivity;
86%
Stage #1: 2-(1-((((R)-1-(3-((E)-2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propyl)sulfanyl)methyl)cyclopropyl)acetonitrile With sodium hydroxide; water; tetrabutylammomium bromide In toluene at 120℃; for 168h;
Stage #2: With acetic acid In water; toluene Product distribution / selectivity;
83%
1-(((1(R)-(3-(2(E)-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid methyl ester
855473-51-7

1-(((1(R)-(3-(2(E)-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid methyl ester

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With water; sodium hydroxide In tetrahydrofuran; methanol at 10 - 20℃; Product distribution / selectivity;90.2%
With methanol; sodium hydroxide In tetrahydrofuran for 5h;66%
Stage #1: 1-(((1(R)-(3-(2(E)-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid methyl ester With methanol; sodium hydroxide; water In tetrahydrofuran at 0 - 20℃; for 48h;
Stage #2: With water; ammonium chloride; acetic acid In tetrahydrofuran pH=5; Product distribution / selectivity;
65.57%
sodium 1-(mercaptomethyl)-cyclopropane acetate
952585-15-8

sodium 1-(mercaptomethyl)-cyclopropane acetate

C36H34ClNO4S

C36H34ClNO4S

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
at 10 - 20℃; for 10h; Concentration;90.2%
C35H36ClNO3S*H3N
1124196-02-6

C35H36ClNO3S*H3N

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With acetic acid In water at 25 - 30℃; for 5 - 6h; Product distribution / selectivity;90%
With toluene at 50 - 60℃; for 6h; Product distribution / selectivity;
[R,E]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl) ethenyl]phenyl]-3-[2-(methylcarbonyl)phenyl] propyl]thio]methyl]cyclopropane acetic acid
937275-23-5

[R,E]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl) ethenyl]phenyl]-3-[2-(methylcarbonyl)phenyl] propyl]thio]methyl]cyclopropane acetic acid

methylmagnesium bromide
75-16-1

methylmagnesium bromide

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: methylmagnesium bromide With lithium chloride In tetrahydrofuran at -10℃; for 0.5h; Inert atmosphere;
Stage #2: [R,E]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl) ethenyl]phenyl]-3-[2-(methylcarbonyl)phenyl] propyl]thio]methyl]cyclopropane acetic acid In tetrahydrofuran for 5h; Inert atmosphere;
90%
1-(mercaptomethyl)cyclopropanylacetic acid

1-(mercaptomethyl)cyclopropanylacetic acid

2-(2-(3-(S)-(3-(2-(7-chloro-2-quinolinyl)ethenyl)-phenyl)-3-diphenylphosphate oxypropyl)phenyl)-2-propanol
1141487-07-1

2-(2-(3-(S)-(3-(2-(7-chloro-2-quinolinyl)ethenyl)-phenyl)-3-diphenylphosphate oxypropyl)phenyl)-2-propanol

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: 1-(mercaptomethyl)cyclopropanylacetic acid; 2-(2-(3-(S)-(3-(2-(7-chloro-2-quinolinyl)ethenyl)-phenyl)-3-diphenylphosphate oxypropyl)phenyl)-2-propanol With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 18 - 20h;
Stage #2: With ammonium chloride In water; N,N-dimethyl-formamide at 20℃; Product distribution / selectivity;
87.1%
(1-{1-(R)-(3-bromophenyl)-3-[2-(1-hydroxy-1-methyl-ethyl)-phenyl]-propylsulfanylmethyl}-cyclopropyl)-acetic acid
1015076-80-8

(1-{1-(R)-(3-bromophenyl)-3-[2-(1-hydroxy-1-methyl-ethyl)-phenyl]-propylsulfanylmethyl}-cyclopropyl)-acetic acid

7-chloro-2-ethenylquinoline
177748-00-4

7-chloro-2-ethenylquinoline

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With triethylamine; palladium diacetate; tris-(o-tolyl)phosphine In N,N-dimethyl-formamide at 100℃; for 4.25h;85%
With triethylamine; palladium diacetate; tris-(o-tolyl)phosphine In N,N-dimethyl-formamide at 100℃; for 4h; Product distribution / selectivity; Heck Reaction;67.6%
Stage #1: (1-{1-(R)-(3-bromophenyl)-3-[2-(1-hydroxy-1-methyl-ethyl)-phenyl]-propylsulfanylmethyl}-cyclopropyl)-acetic acid; 7-chloro-2-ethenylquinoline With triethylamine; palladium diacetate; tris-(o-tolyl)phosphine In N,N-dimethyl-formamide at 100℃; for 4h;
Stage #2: With water; citric acid In ethyl acetate; N,N-dimethyl-formamide; toluene pH=3 - 4;
Stage #1: (1-{1-(R)-(3-bromophenyl)-3-[2-(1-hydroxy-1-methyl-ethyl)-phenyl]-propylsulfanylmethyl}-cyclopropyl)-acetic acid; 7-chloro-2-ethenylquinoline; palladium diacetate; tris-(o-tolyl)phosphine In N,N-dimethyl-formamide for 0.25h;
Stage #2: With triethylamine In N,N-dimethyl-formamide at 100℃; for 4h;
Stage #3: With citric acid In water; ethyl acetate; N,N-dimethyl-formamide; toluene pH=3 - 4;
C6H8N2*C35H36ClNO3S
1124196-05-9

C6H8N2*C35H36ClNO3S

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With acetic acid In toluene at 25 - 30℃; for 12 - 14h;85%
C35H34ClNO4S

C35H34ClNO4S

methylmagnesium bromide
75-16-1

methylmagnesium bromide

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
In toluene at -10 - -5℃; for 5h; Inert atmosphere;85%
1-(((1-(R)-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-((1-tetrahydropyranyloxy)-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropyl acetate
1000788-70-4

1-(((1-(R)-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-((1-tetrahydropyranyloxy)-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropyl acetate

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: 1-(((1-(R)-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-((1-tetrahydropyranyloxy)-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropyl acetate With pyridine; toluene-4-sulfonic acid In methanol at 60℃; for 8h;
Stage #2: With sodium hydroxide In methanol at 30℃; for 2h;
84.9%
2-[1-(mercaptomethyl)cyclopropyl]acetic acid methyl ester
152922-73-1

2-[1-(mercaptomethyl)cyclopropyl]acetic acid methyl ester

2-(2-(3(S)-(3-(2-(7-chloroquinolin-2-yl)ethyl)phenyl)-3-(methanesulfonyl-1-oxy)methylethyl)phenyl)-2-propanol
169954-93-2

2-(2-(3(S)-(3-(2-(7-chloroquinolin-2-yl)ethyl)phenyl)-3-(methanesulfonyl-1-oxy)methylethyl)phenyl)-2-propanol

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: 2-[1-(mercaptomethyl)cyclopropyl]acetic acid methyl ester With sodium hexamethyldisilazane In tetrahydrofuran at -15℃; for 1h; Inert atmosphere;
Stage #2: 2-(2-(3(S)-(3-(2-(7-chloroquinolin-2-yl)ethyl)phenyl)-3-(methanesulfonyl-1-oxy)methylethyl)phenyl)-2-propanol In tetrahydrofuran at -15℃; for 7h; Product distribution / selectivity; Inert atmosphere;
84.7%
1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid benzylamine salt
1100021-03-1

1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid benzylamine salt

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With acetic acid In toluene at 25 - 30℃; for 12 - 14h;81%
C34H32ClNO4S*ClH

C34H32ClNO4S*ClH

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: methylmagnesium chloride With cerium(III) chloride In tetrahydrofuran at 0 - 5℃; for 1.16667h;
Stage #2: C34H32ClNO4S*ClH In tetrahydrofuran at 10℃; for 0.166667h;
Stage #3: With water; sodium acetate; acetic acid In tetrahydrofuran Product distribution / selectivity;
80%
C34H32ClNO4S*ClH

C34H32ClNO4S*ClH

methylmagnesium chloride
676-58-4

methylmagnesium chloride

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: methylmagnesium chloride; cerium(III) chloride In tetrahydrofuran at 0 - 5℃; for 1.16667h;
Stage #2: C34H32ClNO4S*ClH In tetrahydrofuran at 10℃; for 0.166667h;
80%
1-(mercaptomethyl)-cyclopropaneacetic acid
169954-92-1

1-(mercaptomethyl)-cyclopropaneacetic acid

2-[2-[3(S)-[3-[(1E)-2-(7-chloroquinoline-2-yl)ethenyl]phenyl]-3-methanesulfonyloxypropyl]phenyl]-2-propanol
807638-71-7

2-[2-[3(S)-[3-[(1E)-2-(7-chloroquinoline-2-yl)ethenyl]phenyl]-3-methanesulfonyloxypropyl]phenyl]-2-propanol

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
Stage #1: 1-(mercaptomethyl)-cyclopropaneacetic acid; 2-[2-[3(S)-[3-[(1E)-2-(7-chloroquinoline-2-yl)ethenyl]phenyl]-3-methanesulfonyloxypropyl]phenyl]-2-propanol With sodium hydroxide In N,N-dimethyl-formamide at -5 - 0℃; for 6h;
Stage #2: With water; sodium chloride In Isopropyl acetate; N,N-dimethyl-formamide for 0.5h;
Stage #3: With tartaric acid In water Product distribution / selectivity;
71.1%
Stage #1: 1-(mercaptomethyl)-cyclopropaneacetic acid; 2-[2-[3(S)-[3-[(1E)-2-(7-chloroquinoline-2-yl)ethenyl]phenyl]-3-methanesulfonyloxypropyl]phenyl]-2-propanol With sodium hydroxide In N,N-dimethyl-formamide at -5 - 0℃; for 6h;
Stage #2: With water; sodium chloride In Isopropyl acetate; N,N-dimethyl-formamide for 0.583333h;
Stage #3: With tartaric acid In Isopropyl acetate; water at 0 - 20℃; for 4.25h; pH=4 - 5; Product distribution / selectivity;
42.54%
Stage #1: 1-(mercaptomethyl)-cyclopropaneacetic acid; 2-[2-[3(S)-[3-[(1E)-2-(7-chloroquinoline-2-yl)ethenyl]phenyl]-3-methanesulfonyloxypropyl]phenyl]-2-propanol With sodium hydroxide In N,N-dimethyl-formamide at -5 - 0℃; for 6h;
Stage #2: With water; sodium chloride In Isopropyl acetate; N,N-dimethyl-formamide for 0.75h;
Stage #3: With pyrographite; tartaric acid Product distribution / selectivity; more than 3 stages;
montelukast isopropylamine salt
918972-53-9

montelukast isopropylamine salt

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With acetic acid In dichloromethane; water at 25 - 35℃; for 0.5h;70.3%
With acetic acid In dichloromethane; water at 25 - 35℃; for 0.5h; pH=4.5;70.3%
With acetic acid In dichloromethane; water for 0.166667h; pH=4.0 - 4.5; Product distribution / selectivity;
1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid α-methylbenzylamine salt
880769-29-9

1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid α-methylbenzylamine salt

montelukast
158966-92-8

montelukast

Conditions
ConditionsYield
With acetic acid In dichloromethane; water at 20 - 25℃; Product distribution / selectivity; Heating / reflux;70.3%
sodium hydroxide
1310-73-2

sodium hydroxide

montelukast
158966-92-8

montelukast

Montelukast sodium
151767-02-1

Montelukast sodium

Conditions
ConditionsYield
In methanol; toluene at 20℃; for 1h; Product distribution / selectivity;100%
In methanol; toluene at 2 - 20℃; for 0.75h; Product distribution / selectivity;100%
In methanol at 20℃; for 1h; Product distribution / selectivity;73%
In methanol at 25 - 35℃; for 0.166667h;
montelukast
158966-92-8

montelukast

Montelukast sodium
151767-02-1

Montelukast sodium

Conditions
ConditionsYield
With sodium hydroxide In methanol; toluene at 20℃; for 1h;100%
With sodium hydroxide In methanol; water; toluene for 0.5h; Product distribution / selectivity; Alkaline aqueous solution;98%
With sodium hydroxide In methanol at -5 - 35℃; for 1h;98.7%
montelukast
158966-92-8

montelukast

C35H36ClNO3S*H3N
1124196-02-6

C35H36ClNO3S*H3N

Conditions
ConditionsYield
With ammonia In ethyl acetate at 20 - 25℃; for 1h;97%
Cyclopentamine
1003-03-8

Cyclopentamine

montelukast
158966-92-8

montelukast

montelukast cyclopentylammonium
947373-22-0

montelukast cyclopentylammonium

Conditions
ConditionsYield
In acetonitrile at 25℃; for 1h; Heating / reflux;95%
cycloheptanamine
5452-35-7

cycloheptanamine

montelukast
158966-92-8

montelukast

(R-(E))-1-(((1-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropaneacetic acid cycloheptylammonium salt
947370-32-3

(R-(E))-1-(((1-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropaneacetic acid cycloheptylammonium salt

Conditions
ConditionsYield
In ethyl acetate at 25 - 60℃; for 1h;95%
In ethyl acetate65%
In ethyl acetate at 25℃; Product distribution / selectivity;
In ethyl acetate at 20℃;
Cyclododecylamine
1502-03-0

Cyclododecylamine

montelukast
158966-92-8

montelukast

C12H25N*C35H36ClNO3S

C12H25N*C35H36ClNO3S

Conditions
ConditionsYield
In cyclohexane; toluene at 25℃; for 1h; Heating / reflux;95%
benzylamine
100-46-9

benzylamine

montelukast
158966-92-8

montelukast

1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid benzylamine salt
1100021-03-1

1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid benzylamine salt

Conditions
ConditionsYield
In ethyl acetate at 20 - 25℃; for 1h;95%
In n-heptane; ethyl acetate at 20 - 25℃; for 50h;
In ethyl acetate at 20℃; for 24h;
propylamine
107-10-8

propylamine

montelukast
158966-92-8

montelukast

montelukast n-propylamine salt
1100021-00-8

montelukast n-propylamine salt

Conditions
ConditionsYield
In n-heptane; toluene; acetonitrile95%
2-aminobutanol
96-20-8, 13054-87-0

2-aminobutanol

montelukast
158966-92-8

montelukast

1-(((1-(R)-(3-(2-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropylacetate 2-amino-1-butanol

1-(((1-(R)-(3-(2-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropylacetate 2-amino-1-butanol

Conditions
ConditionsYield
In ethyl acetate at 15 - 25℃; for 5h; Time; Solvent; Temperature;95%
cyclooctylamine
5452-37-9

cyclooctylamine

montelukast
158966-92-8

montelukast

(R-(E))-1-(((1-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropaneacetic acid cyclooctylammonium salt
947370-34-5

(R-(E))-1-(((1-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropaneacetic acid cyclooctylammonium salt

Conditions
ConditionsYield
In toluene at 25℃; for 1h; Heating / reflux;94%
In ethyl acetate Product distribution / selectivity;70%
In water; toluene for 1.5h; Product distribution / selectivity;70%
N-cyclohexyl-cyclohexanamine
101-83-7

N-cyclohexyl-cyclohexanamine

montelukast
158966-92-8

montelukast

1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid dicyclohexylamine salt
577953-88-9

1-(((1(R)-(3-(2-(7-chloro-2-quinolinil)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropane acetic acid dicyclohexylamine salt

Conditions
ConditionsYield
In n-heptane; toluene Product distribution / selectivity;90%
In ethyl acetate; toluene Product distribution / selectivity;61%
In toluene at 20 - 25℃; for 0.25h; Product distribution / selectivity;59.67%

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