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Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures

L-Selenomethionine

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $10.0 / 20.0

Type:Lab/Research institutions

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Hangzhou Sartort Biopharma Co., Ltd

Appearance:White to off-white powder Storage:ln stock Package:5kg/drum Application:For structural analysis of proteins Transportation:Express/Sea/Air Port:Any port in China

High purity L-(+)-Selenomethionine with best price

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Lab/Research institutions

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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

L-(+)-Selenomethionine

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Kono Chem Co.,Ltd

Specifications CAS No.: 3211-76-5 Other Names: l-selenomethionine MF: 1 EINECS No.: 1 Place of Origin: Shaanxi, China (Mainland)

l-selenomethionine 98% CAS:3211-76-5 with best price

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $400.0 / 500.0

Type:Other

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Wuhan Fortuna Chemical Co.,Ltd

L-(+)-Selenomethionine CAS 3211-76-5 Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/Feed additives, Fine chemicals in dis

L-(+)-Selenomethionine CAS 3211-76-5

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $50.0

Type:Trading Company

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Xi'an Quanao Biotech Co., Ltd.

Come From Nature / Building Healthy Life Beauty In Your Face / Nourishment Your Taste Bud. Professional Factory: We has a complete production and operating system, with an annual output capacity of 2000 tons. It can produce variety of conten

Nutritional supplement 99% L-Selenomethionine supplier

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $19.0 / 39.0

Type:Manufacturers

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Hangzhou Think Chemical Co. Ltd

L-(+)-Selenomethionine[CAS:3211-76-5] HANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture. With about ten years of business experiences on the marketing & distributi

High purity L-(+)-Selenomethionine

Cas:3211-76-5

Min.Order:10 Gram

Negotiable

Type:Other

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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 L-(+)-Selenomethionine

Cas:3211-76-5

Min.Order:1

Negotiable

Type:Other

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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

High Quality 99% Butanoic acid,2-amino-4-(methylseleno)-, (2S)- 3211-76-5 ISO Producer

Cas:3211-76-5

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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Hebei yanxi chemical co.,LTD.

hebei yanxi chemical 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 research and developm

l-selenomethionine 98% CAS:3211-76-5 with best price

Cas:3211-76-5

Min.Order:1 Metric Ton

FOB Price: $1.0 / 3.0

Type:Trading Company

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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

L-Selenomethionine

Cas:3211-76-5

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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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

L(+)-Selenomethionine, ee 99+%, 99+%

Cas:3211-76-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

CAS:3211-76-5 L-Selenomethionine

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $2.0 / 9.0

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

Discount price CAS 3211-76-5 with best quality

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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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

Butanoic acid,2-amino-4-(methylseleno)-, (2S)- 3211-76-5

Cas:3211-76-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Henan Allgreen Chemical Co.,Ltd

he company has advanced technology, as well as a large number of excellent R & D team, to provide customers from the grams to one hundred kilograms and tons of high-quality products, competitive prices and quality se T rvice Appearance:Whit

L-SelenoMethionine

Cas:3211-76-5

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the

Butanoic acid,2-amino-4-(methylseleno)-, (2S)-/ LIDE PHARMA- Factory supply / Best price

Cas:3211-76-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese

L-(+)-Selenomethionine

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $40.0 / 48.0

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

L-Selenomethionine CAS:3211-76-5 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 interme

L-Selenomethionine CAS:3211-76-5

Cas:3211-76-5

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

Butanoic acid,2-amino-4-(methylseleno)-, (2S)-

Cas:3211-76-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

Top quality CAS 3211-76-5 L-(+)-Selenomethionine with reasonable price and fast delivery on hot selling

Cas:3211-76-5

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

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Leader Biochemical Group

Overview of Our Factories Our Factories production lines Our Factories R&D ability Our Factories warehouse Our Factorie

China Biggest Factory & Manufacturer supply L-Selenomethionine

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $30.0 / 35.0

Type:Lab/Research institutions

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Hebei Mojin Biotechnology Co.,Ltd

Product quality: Our company have high quality product , and also the product we have good manufacture . First of all, this product is of fine quality. Every finish should be checked by quality inspection system.And every one should be also tried

High Quality L-Selenomethionine CAS 3211-76-5 Selenomethionine Powder

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $10.0 / 20.0

Type:Trading Company

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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

Butanoic acid,2-amino-4-(methylseleno)-, (2S)-

Cas:3211-76-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

ShangHai Soyoung Biotechnology Inc

Shanghai SOYOUNG onsite assessment conducted by Bureau Veritas commissioned at June 2018. Assessed Supplier of Shanghai SOYOUNG is a faithful and professional supplier of health raw materials in pharmacy, food, cosmetic and other fields for many ye

L-Selenomethionine

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $390.0

Type:Lab/Research institutions

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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

supply high quality L-Selenomethionine powder CAS 3211-76-5c acid in stock

Cas:3211-76-5

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Wuhan Zenuo Biological Medicine Technology Co Ltd

Product Name: L-Selenomethionine Synonyms: (S)-(+)-2-AMINO-4-(METHYLSELENO)BUTANOIC ACID;(S)-2-AMINO-4-(METHYLSELENO)BUTYRIC ACID;SEMET;SELENOMETHIONINE, L-(+)-;SELENO-L-METHIONINE;L-(+)-2-AMINO-4-(METHYLSELENO)BUTANOIC ACID;L-(+)-SELENOMETHIONI

L-Selenomethionine big supplier with lower price

Cas:3211-76-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

L-(+)-Selenomethionine

Cas:3211-76-5

Min.Order:0

Negotiable

Type:Manufacturers

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Hebei Miheng Trading Co., Ltd.

L-Selenomethionine CAS 3211-76-5 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.

L-Selenomethionine CAS 3211-76-5

Cas:3211-76-5

Min.Order:1 Kilogram

FOB Price: $10.0 / 50.0

Type:Trading Company

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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

L-(+)-Selenomethionine

Cas:3211-76-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

N-Boc-L-selenomethionine
45172-44-9

N-Boc-L-selenomethionine

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
With trifluoroacetic acid In dichloromethane for 0.5h; Ambient temperature;96%
sodium methylselenide
37773-10-7

sodium methylselenide

(3S)-(3-amino-3-carboxypropyl)dimethylsulfonium iodide
3493-11-6

(3S)-(3-amino-3-carboxypropyl)dimethylsulfonium iodide

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
In methanol; ethanol at 45℃; for 9h; Solvent; Temperature; Inert atmosphere;82%
dimethyl sulfate
77-78-1

dimethyl sulfate

L,L-selenohomocystine

L,L-selenohomocystine

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
Stage #1: L,L-selenohomocystine With sodium tetrahydroborate; ethanol at 30 - 45℃; for 5h; Inert atmosphere;
Stage #2: dimethyl sulfate at 25 - 30℃; for 3h; Temperature;
81.8%
methyllithium
917-54-4

methyllithium

α-amino-γ-bromobutyric acid methyl ester hydrochloride
15159-66-7

α-amino-γ-bromobutyric acid methyl ester hydrochloride

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
Stage #1: methyllithium; α-amino-γ-bromobutyric acid methyl ester hydrochloride With selenium; boric acid tributyl ester In tetrahydrofuran; diethyl ether; N,N-dimethyl-formamide at -78 - 20℃; for 0.166667h; Inert atmosphere;
Stage #2: With methanol; sodium hydroxide In tetrahydrofuran; diethyl ether; N,N-dimethyl-formamide for 0.166667h; Temperature; Reagent/catalyst;
66%
(S)-2-Benzyloxycarbonylamino-4-methylselanyl-butyric acid; compound with dicyclohexyl-amine

(S)-2-Benzyloxycarbonylamino-4-methylselanyl-butyric acid; compound with dicyclohexyl-amine

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
(i) aq. H2SO4, AcOEt, (ii) HBr, HSCH2CH2OH, AcOH; Multistep reaction;
(2S)-2-amino-4-(benzylselanyl)butanoic acid
19635-25-7

(2S)-2-amino-4-(benzylselanyl)butanoic acid

methyl iodide
74-88-4

methyl iodide

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
(i) Na, liq. NH3, (ii) /BRN= 969135/, NH4Cl; Multistep reaction;
Lithium; 2-acetylamino-4-methylselanyl-butyrate

Lithium; 2-acetylamino-4-methylselanyl-butyrate

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
at 39℃; aminoacylase;
2-Acetylamino-4-methylselanyl-butyric acid
174463-50-4

2-Acetylamino-4-methylselanyl-butyric acid

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
With acylase from Aspergillus oryzae; water at 20 - 37℃;
N-Acetylseleno-L-methionine

N-Acetylseleno-L-methionine

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
With pig kidney acylase I In phosphate buffer at 37℃; for 0.166667h; pH=7.4; Enzyme kinetics; Deacetylation;
L-selenohomocysteine
29475-60-3

L-selenohomocysteine

N-[4-[[(2-amino-1,4,5,6,7,8,-hexahydro-4-oxo-5-methyl-6-pteridinyl)methyl]amino]benzoyl]-L-glutamate

N-[4-[[(2-amino-1,4,5,6,7,8,-hexahydro-4-oxo-5-methyl-6-pteridinyl)methyl]amino]benzoyl]-L-glutamate

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
With E. coli cobalamin-independent methionine synthase (2-649) Enzyme kinetics; Methylation;
L-selenohomocysteine
29475-60-3

L-selenohomocysteine

methylcobalamin

methylcobalamin

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
With E. coli cobalamin-dependent methionine synthase (2-649) Enzyme kinetics; Methylation;
seleno-DL-methionine
2578-28-1

seleno-DL-methionine

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 84.1 percent / 4 h / 15 - 30 °C
2: H2O, acylase from Aspergillus oryzae / 20 - 37 °C
View Scheme
L-benzyl N-t-butoxycarbonylselenomethioninate
109276-72-4

L-benzyl N-t-butoxycarbonylselenomethioninate

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 100 percent / NaOH / dioxane; H2O / 0.5 h / Ambient temperature
2: 96 percent / trifluoroacetic acid / CH2Cl2 / 0.5 h / Ambient temperature
View Scheme
L-selenomethionine methyl ester hydrochloride

L-selenomethionine methyl ester hydrochloride

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
In methanol; water at 20℃; for 0.166667h; Alkaline conditions;
L-homoserine lactone hydrochloride
2185-03-7

L-homoserine lactone hydrochloride

sodium methylselenide
37773-10-7

sodium methylselenide

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 2h; Inert atmosphere; Reflux;n/a
C13H17NO4Se

C13H17NO4Se

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
With hydrogen bromide In tetrahydrofuran; 1,4-dioxane Inert atmosphere; Green chemistry;8.99 g
dimethyl sulfoxide
67-68-5

dimethyl sulfoxide

L,L-selenohomocystine

L,L-selenohomocystine

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Conditions
ConditionsYield
Stage #1: L,L-selenohomocystine With sodium tetrahydroborate; ethanol at 35℃; for 5h; Inert atmosphere;
Stage #2: dimethyl sulfoxide at 45℃; for 1.5h; Temperature; Reagent/catalyst; Inert atmosphere;
43.4 g
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

N-Boc-L-selenomethionine
45172-44-9

N-Boc-L-selenomethionine

Conditions
ConditionsYield
Stage #1: Seleno-L-methionine With sodium hydrogencarbonate In 1,4-dioxane; water for 0.333333h; Cooling with ice;
Stage #2: di-tert-butyl dicarbonate In 1,4-dioxane; water at 20℃; for 13h; Cooling with ice;
98%
With sodium hydroxide In 1,4-dioxane; water at 20℃; for 20h;
With sodium hydrogencarbonate In 1,4-dioxane; water at 25℃;
With sodium hydrogencarbonate In 1,4-dioxane; water at 20℃; for 12h;
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

2,4-Dinitrofluorobenzene
70-34-8

2,4-Dinitrofluorobenzene

N-(2,4-dinitrophenyl)seleno-L-methionine
919767-00-3

N-(2,4-dinitrophenyl)seleno-L-methionine

Conditions
ConditionsYield
With sodium carbonate In tetrahydrofuran at 20 - 40℃; for 9h;90%
formic acid
64-18-6

formic acid

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

N-formyl selenomethionine

N-formyl selenomethionine

Conditions
ConditionsYield
With acetic anhydride for 1h;88%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

L-selenomethionine Se-oxide

L-selenomethionine Se-oxide

Conditions
ConditionsYield
With dihydrogen peroxide for 0.25h; cooling;85%
With Sprague-Dawley rat liver microsomes; NADPH; catalase In phosphate buffer for 0.333333h; pH=7.4; Enzyme kinetics; Further Variations:; Reagents;
With dihydrogen peroxide In water
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

2-(acetylmethylseleno)benzoyl chloride

2-(acetylmethylseleno)benzoyl chloride

2-(2-acetonylselenobenzamide)-4-methylselenobutyric acid

2-(2-acetonylselenobenzamide)-4-methylselenobutyric acid

Conditions
ConditionsYield
In acetone at 0℃; for 8.5h;85%
succinic acid anhydride
108-30-5

succinic acid anhydride

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

(S)-4-(1-carboxy-3-(methylselanyl)propylamino)-4-oxobutanoic acid
918887-82-8

(S)-4-(1-carboxy-3-(methylselanyl)propylamino)-4-oxobutanoic acid

Conditions
ConditionsYield
With sulfuric acid In water; ethyl acetate for 1h; Heating / reflux;84.14%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

N-carbamoyl L-selenomethionine

N-carbamoyl L-selenomethionine

Conditions
ConditionsYield
Stage #1: Seleno-L-methionine With potassium cyanate In water at 80 - 94℃; for 2h;
Stage #2: With hydrogenchloride In water at 20℃;
83.65%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

2,2-dimethoxy-propane
77-76-9

2,2-dimethoxy-propane

L-selenomethionine methyl ester hydrochloride

L-selenomethionine methyl ester hydrochloride

Conditions
ConditionsYield
With hydrogenchloride for 18h;83%
copper(II) nitrate trihydrate

copper(II) nitrate trihydrate

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

Cu(L-selenomethionine)2

Cu(L-selenomethionine)2

Conditions
ConditionsYield
With sodium hydroxide In water pH=6;78%
1-ethoxy-4-iodobenzene
699-08-1

1-ethoxy-4-iodobenzene

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

1-Ethoxy-4-methylselanyl-benzene
86297-06-5

1-Ethoxy-4-methylselanyl-benzene

Conditions
ConditionsYield
With potassium tert-butylate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; palladium dichloride In 5,5-dimethyl-1,3-cyclohexadiene at 130℃; for 12h;78%
n-dodecanoyl chloride
112-16-3

n-dodecanoyl chloride

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

N-lauroyl-L-selenomethionine

N-lauroyl-L-selenomethionine

Conditions
ConditionsYield
Stage #1: Seleno-L-methionine With potassium hydroxide Sonication; Cooling with ice;
Stage #2: n-dodecanoyl chloride In tetrahydrofuran at 50℃; for 4h; pH=12; Temperature; pH-value; Cooling with ice;
77.34%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

5'-deoxy-5'-chloroadenosine
892-48-8

5'-deoxy-5'-chloroadenosine

Se-adenosyl-L-selenohomocysteine
4053-91-2

Se-adenosyl-L-selenohomocysteine

Conditions
ConditionsYield
Stage #1: Seleno-L-methionine With ammonia; sodium at -35℃; for 1.25h; Inert atmosphere;
Stage #2: 5'-deoxy-5'-chloroadenosine In methanol at 50℃; for 24h; Inert atmosphere;
74%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

5'-chloro-5'-deoxyadenosine

5'-chloro-5'-deoxyadenosine

Selenoadenosylhomocysteine

Selenoadenosylhomocysteine

Conditions
ConditionsYield
at 50℃; for 24h; Cooling with acetone-dry ice; Inert atmosphere;74%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

5'-deoxy-5'-chloroadenosine
892-48-8

5'-deoxy-5'-chloroadenosine

(2R)-2-amino-4-((((2S,3S,5R)-5-(6-amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl)selanyl)butanoic acid

(2R)-2-amino-4-((((2S,3S,5R)-5-(6-amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl)selanyl)butanoic acid

Conditions
ConditionsYield
Stage #1: Seleno-L-methionine With ammonia; sodium Inert atmosphere; Cooling with acetone-dry ice;
Stage #2: 5'-deoxy-5'-chloroadenosine In methanol at 50℃; for 24h; Inert atmosphere;
74%
(Z)-9-octadecenoyl chloride
112-77-6

(Z)-9-octadecenoyl chloride

Seleno-L-methionine
3211-76-5

Seleno-L-methionine

N-oleoyl-L-selenomethionine

N-oleoyl-L-selenomethionine

Conditions
ConditionsYield
Stage #1: Seleno-L-methionine With potassium hydroxide Sonication; Cooling with ice;
Stage #2: (Z)-9-octadecenoyl chloride In tetrahydrofuran at 25℃; for 2h; pH=9 - 10; Cooling with ice;
68.77%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

L-selenohomocysteine
29475-60-3

L-selenohomocysteine

Conditions
ConditionsYield
With ammonia; sodium at -78℃; for 1.33333h;62%
With ammonia; sodium at -80℃; for 0.833333h; demethylation;
With ammonia; sodium at -80℃; for 1h; Inert atmosphere; Darkness;
With ammonia; sodium at -60℃; for 1h;
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

isopropyl alcohol
67-63-0

isopropyl alcohol

L-selenomethionine isopropyl ester

L-selenomethionine isopropyl ester

Conditions
ConditionsYield
Stage #1: Seleno-L-methionine; isopropyl alcohol With sulfuric acid at 0℃; for 48h; Heating / reflux;
Stage #2: With ammonia In water; isopropyl alcohol
52.61%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

4-chlorobenzaldehyde
104-88-1

4-chlorobenzaldehyde

tert-butylamine
75-64-9

tert-butylamine

(2S)-2-(((1-(tert-butyl)-1H-tetrazol-5-yl)(4-chlorophenyl)methyl)amino)-4-(methylselanyl)butanoic acid

(2S)-2-(((1-(tert-butyl)-1H-tetrazol-5-yl)(4-chlorophenyl)methyl)amino)-4-(methylselanyl)butanoic acid

Conditions
ConditionsYield
Stage #1: Seleno-L-methionine; 4-chlorobenzaldehyde In methanol at 20℃; for 0.166667h; Ugi Condensation;
Stage #2: tert-butylamine With sodium azide In methanol at 20℃; for 12h; Ugi Condensation;
51%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

methylmercury(II) hydroxide
1184-57-2

methylmercury(II) hydroxide

methylmercury-L-selenomethioninate

methylmercury-L-selenomethioninate

Conditions
ConditionsYield
With HNO3 In water byproducts: Se; Se-compound added to H2O, pH adjusted by HNO3 to 0.5, CH3HgOH added, stirred for 3.5 h; filtered, solvent evapd. in vac., kept under Ar at 4°C; elem. anal.;49%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

benzyl bromide
100-39-0

benzyl bromide

A

(2S)-2-amino-4-(benzylselanyl)butanoic acid
19635-25-7

(2S)-2-amino-4-(benzylselanyl)butanoic acid

B

L-selenohomocysteine
29475-60-3

L-selenohomocysteine

Conditions
ConditionsYield
With hydrogenchloride In water at 100℃; for 12h;A 7%
B 38%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

isopropyl bromide
75-26-3

isopropyl bromide

(2S)-2-amino-4-(propan-2-ylselanyl)butanoic acid
1601474-76-3

(2S)-2-amino-4-(propan-2-ylselanyl)butanoic acid

Conditions
ConditionsYield
With hydrogenchloride In water at 100℃; for 12h;9%
With hydrogenchloride In water at 100℃; for 12h;9%
Seleno-L-methionine
3211-76-5

Seleno-L-methionine

benzyl bromide
100-39-0

benzyl bromide

(2S)-2-amino-4-(benzylselanyl)butanoic acid
19635-25-7

(2S)-2-amino-4-(benzylselanyl)butanoic acid

Conditions
ConditionsYield
With hydrogenchloride In water at 100℃; for 12h;7%
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