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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

Trityl Irbesartan Manufacturer/High quality/Best price/In stock

Cas:138402-10-5

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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

Trityl irbesartan

Cas:138402-10-5

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hebei yanxi chemical co.,LTD.

CHENGDU YANXI is a comprehensive manufacturer and an international distribution of products throughout the world. Specialized in Scrap metal, Chemical raw materials, Paper products and color industry. We aim to become leading position in global dis

Pharmaceutical Raw Material Irbesartan intermediates with GMP/EDMF

Cas:138402-10-5

Min.Order:1 Gram

FOB Price: $3.0

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O

C44H42N6O Trityl Irbesartan 138402-10-5

Cas:138402-10-5

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

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

Factory direct supply CAS 138402-10-5 with best quality

Cas:138402-10-5

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

Trityl Irbesartan CAS:138402-10-5

Cas:138402-10-5

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

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

Trityl Irbesartan 138402-10-5

Cas:138402-10-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

Trityl Irbesartan CAS:138402-10-5 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 interm

Trityl Irbesartan CAS:138402-10-5

Cas:138402-10-5

Min.Order:1 Gram

Negotiable

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 emai

Trityl Irbesartan

Cas:138402-10-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

Trityl Irbesartan

Cas:138402-10-5

Min.Order:1 Kilogram

FOB Price: $1.0 / 100000.0

Type:Lab/Research institutions

inquiry

Hangzhou Maytime Bio-Tech Co.,Ltd.

we are manufacturer of Irbesartan intermediates with competitive price and good service. Appearance:white or off-white powder Storage:sealed in container ,room temperature. Package:25kgs/fiber drum Application:Irbesartan intermediate Transportatio

Trityl Irbesartan

Cas:138402-10-5

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

C44H42N6O Trityl Irbesartan 138402-10-5

Cas:138402-10-5

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

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

Trityl Irbesartan

Cas:138402-10-5

Min.Order:0 Metric Ton

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

Tritylirbesartan

Cas:138402-10-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

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

High quality Trityl Irbesartan

Cas:138402-10-5

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

C44H42N6O Trityl Irbesartan 138402-10-5

Cas:138402-10-5

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

HANGZHOU YUNUO CHEMICAL CO.,LTD

Superior quality, moderate price & quick delivery. Appearance:white powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:10g/bag,or as your request Application:Used as Pharmaceutical Intermediates Transporta

Trityl Irbesartan

Cas:138402-10-5

Min.Order:1 Gram

Negotiable

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 providing h

Factory Supply Trityl Irbestartan

Cas:138402-10-5

Min.Order:0

Negotiable

Type:Other

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

Trityl Irbesartan CAS138402-10-5

Cas:138402-10-5

Min.Order:0 Metric Ton

FOB Price: $36.0 / 75.0

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

Product Name Trityl Irbesartan CAS No. 138402-10-5 Appearance Powder Assay ≥99%

Trityl Irbestartan

Cas:138402-10-5

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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,

TriphenylmethylIrbesartan

Cas:138402-10-5

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

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

Trityl Irbesartan

Cas:138402-10-5

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

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

C44H42N6O Trityl Irbesartan 138402-10-5

Cas:138402-10-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

Trityl Irbesartan

Cas:138402-10-5

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Hangzhou Zhongqi chem Co.,Ltd.

Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h

Trityl Irbesartan

Cas:138402-10-5

Min.Order:0

Negotiable

Type:Other

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

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

Triphenyl irbesartan

Cas:138402-10-5

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Triumph International Development Limilted

Triumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis:

Trityl Irbesartan

Cas:138402-10-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

Trityl Irbesartan

Cas:138402-10-5

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

inquiry

Hebei Mojin Biotechnology Co.,Ltd

1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification

Trityl Irbesartan

Cas:138402-10-5

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Lonwin Chemical Group Limited

Shanghai Lonwin Chemical company is a subsidiary of Lonwin Industry Group Limited, was established in 2011 and is headquartered in Shanghai, adjacent to China National Convention and Exhibition Center and Hongqiao transportation hub.Lonwinchem is

High Purity Trityl Irbesartan 138402-10-5

Cas:138402-10-5

Min.Order:100 Kilogram

FOB Price: $100.0 / 150.0

Type:Other

inquiry

Synthetic route

3-[4-bromobenzyl]-2-n-butyl-1,3-diazaspiro[4.4]non-1-en-4-one
731851-41-5

3-[4-bromobenzyl]-2-n-butyl-1,3-diazaspiro[4.4]non-1-en-4-one

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
Stage #1: 2-(N-triphenylmethyl-tetrazol-5-yl)-phenylboronic acid; palladium diacetate; triphenylphosphine In tetrahydrofuran; 1,2-dimethoxyethane at 20℃; for 0.666667h;
Stage #2: 3-[4-bromobenzyl]-2-n-butyl-1,3-diazaspiro[4.4]non-1-en-4-one With water; potassium carbonate In tetrahydrofuran; 1,2-dimethoxyethane at 20 - 80℃; for 3.5h; Heating / reflux;
90%
N-(triephenylmethyl)-5-<4'-(bromomethyl)-biphenyl-2-yl>tetrazole
124750-51-2

N-(triephenylmethyl)-5-<4'-(bromomethyl)-biphenyl-2-yl>tetrazole

2-butyl-1,3-diazaspiro[4.4]non-1-en-4-one hydrochloride

2-butyl-1,3-diazaspiro[4.4]non-1-en-4-one hydrochloride

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 0.0194444h; microwave irradiation;90%
2-(2-thienyl)-3-[2'-(1-trityl-1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-1,3-diazaspiro[4.4]non-1-en-4-one
1199814-94-2

2-(2-thienyl)-3-[2'-(1-trityl-1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-1,3-diazaspiro[4.4]non-1-en-4-one

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
With hydrogen; Raney nickel In N,N-dimethyl-formamide at 20℃;88%
3-[4-bromobenzyl]-2-n-butyl-1,3-diazaspiro[4.4]non-1-en-4-one
731851-41-5

3-[4-bromobenzyl]-2-n-butyl-1,3-diazaspiro[4.4]non-1-en-4-one

2-(N-triphenylmethyl-tetrazol-5-yl)-phenylboronic acid
144873-97-2

2-(N-triphenylmethyl-tetrazol-5-yl)-phenylboronic acid

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
With potassium carbonate; palladium diacetate; triphenylphosphine In water; toluene at 95 - 100℃; for 3 - 4h; Product distribution / selectivity;80%
With caesium carbonate; palladium diacetate; triphenylphosphine In water; toluene at 95 - 100℃; for 3 - 4h; Product distribution / selectivity;80%
With potassium hydroxide; palladium diacetate; triphenylphosphine In water; toluene at 95 - 100℃; for 3 - 4h; Product distribution / selectivity;72%
N-pentanoylaminocyclopentane-1-carboxylic acid
15026-80-9

N-pentanoylaminocyclopentane-1-carboxylic acid

1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine
134603-82-0

1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
Stage #1: N-pentanoylaminocyclopentane-1-carboxylic acid; 1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine With methanesulfonic acid In toluene at 20℃; for 48h; Heating / reflux;
Stage #2: With sodium hydroxide In water; ethyl acetate for 0.5h;
80%
Stage #1: N-pentanoylaminocyclopentane-1-carboxylic acid; 1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine With methanesulfonic acid In toluene at 20℃; for 48h; Heating / reflux;
Stage #2: With sodium hydrogencarbonate In water; ethyl acetate for 0.5h;
80%
2-n-butyl-3-[4-(5,5-dimethyl-[1,3,2]dioxaborinan-2-yl)benzyl]-1,3-diazaspiro[4.4]non-1-ene-4-one
894806-38-3

2-n-butyl-3-[4-(5,5-dimethyl-[1,3,2]dioxaborinan-2-yl)benzyl]-1,3-diazaspiro[4.4]non-1-ene-4-one

N-trityl-5-(2-bromophenyl)tetrazole
143945-72-6

N-trityl-5-(2-bromophenyl)tetrazole

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
Stage #1: With triphenylphosphine; palladium diacetate In tetrahydrofuran at 20℃; for 0.5h;
Stage #2: 2-n-butyl-3-[4-(5,5-dimethyl-[1,3,2]dioxaborinan-2-yl)benzyl]-1,3-diazaspiro[4.4]non-1-ene-4-one; N-trityl-5-(2-bromophenyl)tetrazole With potassium phosphate In tetrahydrofuran for 48h; Product distribution / selectivity; Heating / reflux;
54%
With potassium phosphate; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In tetrahydrofuran for 48h; Product distribution / selectivity; Heating / reflux;32%
1-(1'-ethoxy)pentanaminylcyclopentent carboxylate
745814-10-2

1-(1'-ethoxy)pentanaminylcyclopentent carboxylate

1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine
134603-82-0

1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
acetic acid In toluene for 3h; Heating / reflux;50%
4-[(2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]phenylboronic acid
894806-37-2

4-[(2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]phenylboronic acid

N-trityl-5-(2-bromophenyl)tetrazole
143945-72-6

N-trityl-5-(2-bromophenyl)tetrazole

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
With potassium carbonate; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In water; ethyl acetate; N,N-dimethyl-formamide; toluene at 85℃; for 48h; Product distribution / selectivity;50%
With sodium carbonate; tetrakis(triphenylphosphine) palladium(0) In ethanol; water; toluene for 5 - 6h; Suzuki Coupling; Heating / reflux;
With 1-(2,6-diisopropylphenyl)-3-(2-oxo-2-(2,4,6-tri-tert-butylphenylamino)ethyl)-1H-imidazol-3-ium bromide; palladium diacetate; potassium carbonate In water; N,N-dimethyl-formamide at 120℃; for 6h;
1-(pentanoylamino)cyclopentanecarboxamide
177219-40-8

1-(pentanoylamino)cyclopentanecarboxamide

N-(triephenylmethyl)-5-<4'-(bromomethyl)-biphenyl-2-yl>tetrazole
124750-51-2

N-(triephenylmethyl)-5-<4'-(bromomethyl)-biphenyl-2-yl>tetrazole

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
With sodium hydroxide; potassium carbonate; tetra(n-butyl)ammonium hydrogensulfate In toluene at 50 - 90℃; for 4h;32%
With potassium hydroxide; tetra(n-butyl)ammonium hydrogensulfate In water; toluene at 90℃; for 1.5h;
C13H23NO3
745814-11-3

C13H23NO3

1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine
134603-82-0

1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
Stage #1: C13H23NO3 With 2,6-dimethylpyridine; oxalyl dichloride In toluene at 0℃; for 1h;
Stage #2: 1-(2'-(1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methanamine In toluene at 0 - 20℃; for 1h;
30%
N-pentanoyl-N-[[2'-[N-(triphenylmethyl)tetrazol-5-yl]-1,1'-biphenyl-4-yl]methyl]amine
439904-79-7

N-pentanoyl-N-[[2'-[N-(triphenylmethyl)tetrazol-5-yl]-1,1'-biphenyl-4-yl]methyl]amine

ethyl 1-aminocyclopentanecarboxylate
1664-35-3

ethyl 1-aminocyclopentanecarboxylate

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
Stage #1: N-pentanoyl-N-[[2'-[N-(triphenylmethyl)tetrazol-5-yl]-1,1'-biphenyl-4-yl]methyl]amine With 2,6-dimethylpyridine; oxalyl dichloride In toluene at 0℃; for 1h;
Stage #2: ethyl 1-aminocyclopentanecarboxylate In toluene at 0 - 20℃; for 1h;
25%
2-(1-TRITYL-1H-TETRAZOL-5-YL)-4'-(1''-ETHOXYPENTANAMINYL)BIPHENYL
745814-08-8

2-(1-TRITYL-1H-TETRAZOL-5-YL)-4'-(1''-ETHOXYPENTANAMINYL)BIPHENYL

ethyl 1-aminocyclopentanecarboxylate
1664-35-3

ethyl 1-aminocyclopentanecarboxylate

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
Stage #1: 2-(1-TRITYL-1H-TETRAZOL-5-YL)-4'-(1''-ETHOXYPENTANAMINYL)BIPHENYL; ethyl 1-aminocyclopentanecarboxylate In toluene at 20℃; for 2h;
Stage #2: acetic acid In toluene for 5h; Heating / reflux;
20%
5-(4-(bromomethyl)-[1,1'-biphenyl]-2-yl]-1-(triphenylmethyl)-1H-tetrazole

5-(4-(bromomethyl)-[1,1'-biphenyl]-2-yl]-1-(triphenylmethyl)-1H-tetrazole

2-butyl-1,3-diaza-spiro[4.4]non-1-en-4one
138402-05-8

2-butyl-1,3-diaza-spiro[4.4]non-1-en-4one

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
With potassium hydroxide; tetrabutylammomium bromide In acetonitrile at 31 - 40℃; for 2.5h; Product distribution / selectivity;
trityl chloride
76-83-5

trityl chloride

4'-[(2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-[1,1'-biphenyl]-2-carbonitrile
138401-24-8

4'-[(2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-[1,1'-biphenyl]-2-carbonitrile

trityl irbesartan
138402-10-5

trityl irbesartan

Conditions
ConditionsYield
Stage #1: 4'-[(2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-[1,1'-biphenyl]-2-carbonitrile With tributyltin azide In xylene for 66h; Heating / reflux;
Stage #2: trityl chloride With sodium hydroxide In tetrahydrofuran; dichloromethane; water for 26h;
Stage #1: 4'-[(2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-[1,1'-biphenyl]-2-carbonitrile With sodium azide; tributyltin chloride; tetrabutylammomium bromide In toluene for 20h; Heating / reflux;
Stage #2: With acetic acid In water; toluene at 20℃; for 0.25h;
Stage #3: trityl chloride With triethylamine In dichloromethane at 25 - 30℃; for 2h;
trityl irbesartan
138402-10-5

trityl irbesartan

2-butyl-3-{4-[2-(1H-tetrazol-5-yl)phenyl]benzyl}-1,3-diazaspiro[4.4]non-1-en-4-one
138402-11-6

2-butyl-3-{4-[2-(1H-tetrazol-5-yl)phenyl]benzyl}-1,3-diazaspiro[4.4]non-1-en-4-one

Conditions
ConditionsYield
Stage #1: trityl irbesartan With hydrogenchloride In water; acetone at 35 - 45℃; for 1.5 - 2h;
Stage #2: In water; acetone at 15℃; pH=11 - 13; Alkaline aqueous solution;
98.75%
With sulfuric acid In water; acetone at 35 - 40℃; for 7h;93%
With sodium hydroxide In methanol at 20℃;87%
trityl irbesartan
138402-10-5

trityl irbesartan

2-n-butyl-4-spirocyclopentane-1-[(2'-(tetrazol-5-yl)biphenyl-4-yl)methyl]-2-imidazolin-5-one hydrochloride sesquihydrate

2-n-butyl-4-spirocyclopentane-1-[(2'-(tetrazol-5-yl)biphenyl-4-yl)methyl]-2-imidazolin-5-one hydrochloride sesquihydrate

Conditions
ConditionsYield
With hydrogenchloride; water In toluene at 55℃; for 1h; Product distribution / selectivity;95%
trityl irbesartan
138402-10-5

trityl irbesartan

A

methoxytriphenylmethane
596-31-6

methoxytriphenylmethane

B

2-butyl-3-{4-[2-(1H-tetrazol-5-yl)phenyl]benzyl}-1,3-diazaspiro[4.4]non-1-en-4-one
138402-11-6

2-butyl-3-{4-[2-(1H-tetrazol-5-yl)phenyl]benzyl}-1,3-diazaspiro[4.4]non-1-en-4-one

Conditions
ConditionsYield
Stage #1: trityl irbesartan With hydroxylamine hydrochloride In methanol; water; acetone at 20℃; for 2h;
Stage #2: With sodium hydroxide In methanol; water; acetone at 20 - 25℃; pH=3.8 - 12.5;
A n/a
B 91%
Stage #1: trityl irbesartan With hydroxylamine hydrochloride In methanol; water; isopropyl alcohol; acetone at 20℃; for 2h;
Stage #2: With sodium hydroxide In methanol; water; acetone at 20 - 25℃; pH=12.0 - 12.5;
A n/a
B 89%
methanol
67-56-1

methanol

trityl irbesartan
138402-10-5

trityl irbesartan

A

methoxytriphenylmethane
596-31-6

methoxytriphenylmethane

B

2-butyl-3-{4-[2-(1H-tetrazol-5-yl)phenyl]benzyl}-1,3-diazaspiro[4.4]non-1-en-4-one
138402-11-6

2-butyl-3-{4-[2-(1H-tetrazol-5-yl)phenyl]benzyl}-1,3-diazaspiro[4.4]non-1-en-4-one

Conditions
ConditionsYield
for 10h; Heating / reflux;A 73%
B 71%
trityl irbesartan
138402-10-5

trityl irbesartan

2-n-butyl-3-[[2'-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]-1,3-diazaspiro[4.4]non-1-en-4-one hydrobromide
329055-24-5

2-n-butyl-3-[[2'-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]-1,3-diazaspiro[4.4]non-1-en-4-one hydrobromide

Conditions
ConditionsYield
With hydrogen bromide In ethanol; water at 20℃; for 3h;
trityl irbesartan
138402-10-5

trityl irbesartan

A

triphenylmethyl alcohol
76-84-6

triphenylmethyl alcohol

B

2-butyl-3-{4-[2-(1H-tetrazol-5-yl)phenyl]benzyl}-1,3-diazaspiro[4.4]non-1-en-4-one
138402-11-6

2-butyl-3-{4-[2-(1H-tetrazol-5-yl)phenyl]benzyl}-1,3-diazaspiro[4.4]non-1-en-4-one

Conditions
ConditionsYield
With hydrogenchloride; water In acetone
trityl irbesartan
138402-10-5

trityl irbesartan

2-n-butyl-4-spirocyclopentane-1-[((2'-tetrazol-5-yl)biphenyl-4-yl)methyl]-2-imidazolin-5-one hydrochloride
329055-23-4

2-n-butyl-4-spirocyclopentane-1-[((2'-tetrazol-5-yl)biphenyl-4-yl)methyl]-2-imidazolin-5-one hydrochloride

Conditions
ConditionsYield
Stage #1: trityl irbesartan With methanol; potassium hydroxide for 2.5h; Heating / reflux;
Stage #2: With hydrogenchloride In water at 20℃; for 4h; pH=0.99; Product distribution / selectivity;
Stage #1: trityl irbesartan With methanol; toluene-4-sulfonic acid In thioguanin for 24h; Heating / reflux;
Stage #2: With sodium hydroxide In water pH=12.7;
Stage #3: With hydrogenchloride; sodium hydroxide Product distribution / selectivity; more than 3 stages;
With hydrogenchloride In ethanol; water at 20℃; for 3h; Product distribution / selectivity;

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