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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

O-Benzyl-L-tyrosine Manufacturer/High quality/Best price/In stock

Cas:16652-64-5

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 L-Tyrosine benzyl ether supplier in China

Cas:16652-64-5

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap

O-Benzyl-L-tyrosine

Cas:16652-64-5

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

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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

O-Benzyl-L-tyrosine

Cas:16652-64-5

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Leader Biochemical Group

About Product Technical Details H-TYR(BZL)-OH Chemical Properties Melting point 259 °C (dec.) (lit.) Boiling point 414.4°C (rough estimate) density 1.1111 (rough esti

China Largest factory Manufacturer Supply H-TYR(BZL)-OH CAS 16652-64-5

Cas:16652-64-5

Min.Order:1 Kilogram

FOB Price: $1.0 / 3.0

Type:Lab/Research institutions

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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

Wholesale price CAS 16652-64-5 with best price

Cas:16652-64-5

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

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

H-TYR(BZL)-OH CAS16652-64-5

Cas:16652-64-5

Min.Order:1 Kilogram

FOB Price: $7.0 / 9.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Name: O-benzyl oxide-L-tyrosine Synonyms: H-Tyr(Bzl)-OH CAS: 16652-64-5 MF: C16H17NO3 Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application:Organic Intermediate Transportation:By sea or by

O-benzyl oxide-L-tyrosine

Cas:16652-64-5

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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

L-Tyrosine,O-(phenylmethyl)- 16652-64-5

Cas:16652-64-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

H-TYR(BZL)-OH CAS:16652-64-5 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 intermedia

H-TYR(BZL)-OH CAS:16652-64-5

Cas:16652-64-5

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

L-Tyrosine,O-(phenylmethyl)-

Cas:16652-64-5

Min.Order:1 Kilogram

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

L-Tyrosine,O-(phenylmethyl)-

Cas:16652-64-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

We can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need CMO

O-Benzyl-L-tyrosine manufacturer/supplier

Cas:16652-64-5

Min.Order:1 Gram

Negotiable

Type:Trading Company

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

O-BENZYL -L-TYROSINE (16652-64-5)

Cas:16652-64-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

our strengths: 1: Fast and guaranteed shipment (TNT;EMS;FEDEX;DHL;UPS;EUB, special line) 2: Various payment items accepted (Btc; MoneyGram; WU) 3: Valued package (Paraffin coating; Double aluminum foil bag; Vacuum packaging) 4: Efficient delivery

Lower Price H-TYR(BZL)-OH

Cas:16652-64-5

Min.Order:1 Gram

Negotiable

Type:Other

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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

(S)-2-amino-3-(4-(benzyloxy)phenyl)propanoic acid

Cas:16652-64-5

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

O-Benzyl-L-tyrosine Manufacturer/High quality/Best price/In stock CAS NO.16652-64-5

Cas:16652-64-5

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

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

H-TYR(BZL)-OH,16652-64-5

Cas:16652-64-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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,

H-Tyr(Bzl)-OH

Cas:16652-64-5

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Shanghai Minstar Chemical Co., Ltd

H-TYR(BZL)-OH Basic information Product Name: H-TYR(BZL)-OH Synonyms: (S)-2-AMino-3-(4-benzyloxyphenyl)propanoic;O-Benzyl-L-tyrosine >=99.0% (NT);(2S)-2-aMino-3-[4-(benzyloxy)phenyl]propanoic acid;L-Tyr(Bzl)-OH;(S)-2-AMINO-3-(4'-BENZYLO

H-TYR(BZL)-OH

Cas:16652-64-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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

H-TYR(BZL)-OH

Cas:16652-64-5

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

16652-64-5 CAS NO.16652-64-5

Cas:16652-64-5

Min.Order:1 Metric Ton

FOB Price: $7.0 / 8.0

Type:Trading Company

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

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

O-Benzyl-L-tyrosine

Cas:16652-64-5

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

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:This product can be use

O-Benzyl-L-tyrosine

Cas:16652-64-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Win-Win chemical Co.Ltd

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

Tyr (Bzl) cas no. 16652-64-5 98%

Cas:16652-64-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Research Peptide Biotechnology Co., Ltd.

High purity, high success rate, short cycle and moderate priceAppearance:White powder solid Storage:Negative 20 degrees Celsius Package:5mg, 10mg 100mg, 1gram Application:Applied to various scientific research

L-Tyrosine,O-(phenylmethyl)-

Cas:16652-64-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

H-Tyr(Bzl)-OH

Cas:16652-64-5

Min.Order:0

Negotiable

Type:Other

inquiry

Hangzhou Dingyan Chem Co., Ltd

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

O-Benzyl-L-tyrosine

Cas:16652-64-5

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

GIHI CHEMICALS CO.,LIMITED

high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier

H-Tyr(Bzl)-OH

Cas:16652-64-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

JINHUA HUAYI CHEMICAL CO., LTD.

Jinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands

O-Benzyl Oxide-L-Tyrosine

Cas:16652-64-5

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

O-benzyl-L-tyrosine coper complex

O-benzyl-L-tyrosine coper complex

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Conditions
ConditionsYield
With sodium sulfide In water at 25 - 30℃; for 0.166667h;93%
O-benzyl-N-tert-butoxycarbonyl-L-tyrosine
2130-96-3

O-benzyl-N-tert-butoxycarbonyl-L-tyrosine

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Conditions
ConditionsYield
With ammonia; hydrogen; palladium on activated charcoal In methanol for 0.5h; Ambient temperature;89%
With hydrogenchloride In diethyl ether Hydrolysis;
With trifluoroacetic acid at 20℃; for 0.25h;
Oϖ-Bzl-L-Tur/copper complex

Oϖ-Bzl-L-Tur/copper complex

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Conditions
ConditionsYield
With N,N-Dibutyl-N'-(benzoyl)thioharnstoff In ethanol for 2h; Heating;80%
benzyl bromide
100-39-0

benzyl bromide

L-tyrosine
60-18-4

L-tyrosine

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Conditions
ConditionsYield
Stage #1: L-tyrosine With sodium hydroxide; copper(II) sulfate for 1h; Heating;
Stage #2: benzyl bromide With sodium hydroxide In methanol at 20℃;
73%
Stage #1: L-tyrosine With copper(ll) sulfate pentahydrate; sodium hydroxide In water at 70℃; for 1h;
Stage #2: benzyl bromide With sodium hydroxide In methanol at 70℃; for 0.5h;
68%
Stage #1: L-tyrosine With copper(ll) sulfate pentahydrate; sodium hydroxide In water at 20 - 70℃;
Stage #2: benzyl bromide With sodium hydroxide In methanol; water Enzymatic reaction;
Stage #3: With edetate disodium In water at 70℃; for 4.5h;
68%
L-tyrosine
60-18-4

L-tyrosine

benzyl chloride
100-44-7

benzyl chloride

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Conditions
ConditionsYield
Stage #1: L-tyrosine With potassium hydroxide; copper(II) sulfate In water at 15 - 65℃; for 1h;
Stage #2: benzyl chloride In water; N,N-dimethyl-formamide at 20 - 55℃; for 2h;
Stage #3: With hydrogenchloride; ammonia more than 3 stages;
62%
O-benzyl-L-tyrosine coper complex

O-benzyl-L-tyrosine coper complex

hydrogenchloride
7647-01-0

hydrogenchloride

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Conditions
ConditionsYield
Stage #1: O-benzyl-L-tyrosine coper complex; hydrogenchloride In water at 26 - 28℃;
Stage #2: With ammonia In water Product distribution / selectivity;
46%
benzyl bromide
100-39-0

benzyl bromide

copper (II)-salt of L-tyrosine

copper (II)-salt of L-tyrosine

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Conditions
ConditionsYield
With sodium hydroxide
With sodium hydroxide
copper(I) sulfate

copper(I) sulfate

L-tyrosine
60-18-4

L-tyrosine

benzyl chloride
100-44-7

benzyl chloride

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Conditions
ConditionsYield
With copper(II) sulfate In methanol; sodium hydroxide; water
copper(I) sulfate

copper(I) sulfate

benzyl bromide
100-39-0

benzyl bromide

L-tyrosine
60-18-4

L-tyrosine

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Conditions
ConditionsYield
With copper(II) sulfate In methanol; sodium hydroxide; water
With copper(II) sulfate In methanol; sodium hydroxide; water
With copper(II) sulfate In methanol; sodium hydroxide; water
ethanol
64-17-5

ethanol

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

O-benzyl L-tyrosine ethyl ester
19842-36-5

O-benzyl L-tyrosine ethyl ester

Conditions
ConditionsYield
With thionyl chloride at 20℃; for 12h;100%
With hydrogenchloride
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Heptanoic acid chloride
2528-61-2

Heptanoic acid chloride

(S)-3-(4-Benzyloxy-phenyl)-2-heptanoylamino-propionic acid
196704-18-4

(S)-3-(4-Benzyloxy-phenyl)-2-heptanoylamino-propionic acid

Conditions
ConditionsYield
With sodium hydroxide In tetrahydrofuran for 4h; Ambient temperature;99%
With sodium hydroxide In tetrahydrofuran; water for 5h; Acylation;99%
Ala-OtBu
21691-50-9

Ala-OtBu

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

H-L-Tyr(Bn)-L-Ala-OtBu

H-L-Tyr(Bn)-L-Ala-OtBu

Conditions
ConditionsYield
Stage #1: O-benzyl-S-tyrosine With 1H-imidazole; tris[(1,1,1,3,3,3-hexafluoropropan-2-yl)oxy]silane; cesium fluoride In chloroform at 30℃; for 1h; Inert atmosphere; Sealed tube;
Stage #2: With N-methyl-N-tert-butyldimethylsilyl-1,1,1-trifluoroacetamide In chloroform at 30℃; for 1h; Inert atmosphere; Sealed tube;
Stage #3: Ala-OtBu In chloroform at 30℃; for 6h; Inert atmosphere; Sealed tube;
99%
methanol
67-56-1

methanol

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

methyl 2S-amino-3-(4-benzyloxyphenyl)propionate hydrochloride
34805-17-9

methyl 2S-amino-3-(4-benzyloxyphenyl)propionate hydrochloride

Conditions
ConditionsYield
With thionyl chloride for 72h; Ambient temperature;98%
With thionyl chloride at 0℃; Reflux;90%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

benzyl chloroformate
501-53-1

benzyl chloroformate

N-benzyloxycarbonyl-O-benzyl-L-tyrosine
86827-18-1, 92455-53-3, 16677-29-5

N-benzyloxycarbonyl-O-benzyl-L-tyrosine

Conditions
ConditionsYield
With sodium hydroxide In tetrahydrofuran; water at 0℃; for 2h;95%
With sodium hydroxide
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

trichloromethyl chloroformate
503-38-8

trichloromethyl chloroformate

N-Carboxy-O-benzyl-L-tyrosine Anhydride
22831-96-5

N-Carboxy-O-benzyl-L-tyrosine Anhydride

Conditions
ConditionsYield
In tetrahydrofuran at 55℃; for 2h; Temperature;93.3%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

2-[4-(benzyloxy)phenyl]acetonitrile
838-96-0

2-[4-(benzyloxy)phenyl]acetonitrile

Conditions
ConditionsYield
With sodium hydroxide; trichloroisocyanuric acid at 25℃; for 1h;93%
pentamethylbenzene,
700-12-9

pentamethylbenzene,

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

(2,3,4,5,6-pentamethylphenyl)phenylmethane
39502-94-8

(2,3,4,5,6-pentamethylphenyl)phenylmethane

Conditions
ConditionsYield
With trifluoroacetic acid for 7h; Ambient temperature;91%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

cobalt(II) chloride
7646-79-9

cobalt(II) chloride

[(C6H5CH2OC6H4CH2CH(NH2)COO)2Co]

[(C6H5CH2OC6H4CH2CH(NH2)COO)2Co]

Conditions
ConditionsYield
In tetrahydrofuran mixing of soln. of PhCH2OC6H4CH2CH(NH2)CO2H in THF with CoCl2 (0.5 equiv.), stirring for 3 h at 50-60°C; removal of solvent, washing several times with Et2O, MeOH and H2O, elem.anal.;90%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

ethyl acetoacetate
141-97-9

ethyl acetoacetate

N-cyclohexyl-cyclohexanamine
101-83-7

N-cyclohexyl-cyclohexanamine

(Z)-3-[(S)-2-(4-Benzyloxy-phenyl)-1-carboxy-ethylamino]-but-2-enoic acid ethyl ester; compound with dicyclohexyl-amine
114671-46-4

(Z)-3-[(S)-2-(4-Benzyloxy-phenyl)-1-carboxy-ethylamino]-but-2-enoic acid ethyl ester; compound with dicyclohexyl-amine

Conditions
ConditionsYield
In methanol; ethanol; water for 3h; Heating;89%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

2,2,2-Trichloroethyl chloroformate
17341-93-4

2,2,2-Trichloroethyl chloroformate

O-benzyl-N-Tcc-L-tyrosine
37888-25-8

O-benzyl-N-Tcc-L-tyrosine

Conditions
ConditionsYield
In ethyl acetate Heating;85%
2,5-dioxopyrrolidin-1-yl (2S)-2-(((benzyloxy)carbonyl)amino)-3-methylbutanoate
3496-11-5

2,5-dioxopyrrolidin-1-yl (2S)-2-(((benzyloxy)carbonyl)amino)-3-methylbutanoate

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

N-benzoxycarbonyl-L-valyl-O-benzyl-L-tyrosine
264887-57-2

N-benzoxycarbonyl-L-valyl-O-benzyl-L-tyrosine

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran; water at 20℃; Condensation;78%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

(S)-2-amino-3-(4-benzyloxyphenyl)-1-propanol
85803-44-7

(S)-2-amino-3-(4-benzyloxyphenyl)-1-propanol

Conditions
ConditionsYield
With lithium aluminium tetrahydride In tetrahydrofuran at 20℃; for 6h;77%
Stage #1: O-benzyl-S-tyrosine With sodium tetrahydroborate; iodine In tetrahydrofuran for 3h; Heating;
Stage #2: With potassium hydroxide In tetrahydrofuran; methanol at 20℃;
66%
Yield given. Multistep reaction;
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

sodium acetate
127-09-3

sodium acetate

(S)-2-acetoxy-3-(4-(benzyloxy)phenyl)propanoic acid
267228-34-2

(S)-2-acetoxy-3-(4-(benzyloxy)phenyl)propanoic acid

Conditions
ConditionsYield
With acetic acid; isopentyl nitrite at 20℃; for 72h;77%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

(S)-3-(4-(benzyloxy)phenyl)-2-hydroxypropanoic acid
162919-37-1

(S)-3-(4-(benzyloxy)phenyl)-2-hydroxypropanoic acid

Conditions
ConditionsYield
Stage #1: O-benzyl-S-tyrosine With sulfuric acid; sodium nitrite In tetrahydrofuran; water at 0 - 20℃; for 3h;
Stage #2: With water In tetrahydrofuran at 10 - 20℃;
76%
With sulfuric acid; sodium nitrite In water; N,N-dimethyl-formamide at 20℃; for 13h; Inert atmosphere;62%
Stage #1: O-benzyl-S-tyrosine With potassium hydrogensulfate In 1,4-dioxane; water at 0 - 5℃; for 1h;
Stage #2: With sodium nitrite In 1,4-dioxane; water at 30℃; for 4h; Product distribution / selectivity;
50%
bis(trichloromethyl) carbonate
32315-10-9

bis(trichloromethyl) carbonate

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

N-Carboxy-O-benzyl-L-tyrosine Anhydride
22831-96-5

N-Carboxy-O-benzyl-L-tyrosine Anhydride

Conditions
ConditionsYield
Stage #1: O-benzyl-S-tyrosine With Pinene In ethyl acetate Inert atmosphere; Reflux;
Stage #2: bis(trichloromethyl) carbonate In ethyl acetate for 2h; Inert atmosphere; Reflux;
75%
Stage #1: O-benzyl-S-tyrosine With Pinene In ethyl acetate at 90℃; for 0.25h;
Stage #2: bis(trichloromethyl) carbonate at 90℃;
formaldehyd
50-00-0

formaldehyd

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

(S)-3-(4-benzyloxyphenyl)-2-(dimethylamino)propanoic acid

(S)-3-(4-benzyloxyphenyl)-2-(dimethylamino)propanoic acid

Conditions
ConditionsYield
With sodium cyanoborohydride; acetic acid In water; acetonitrile at 22℃; for 1h; pH=Ca.7; Inert atmosphere;75%
phosgene
75-44-5

phosgene

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

N-Carboxy-O-benzyl-L-tyrosine Anhydride
22831-96-5

N-Carboxy-O-benzyl-L-tyrosine Anhydride

Conditions
ConditionsYield
In tetrahydrofuran; toluene at 50℃; for 1.5h;74.3%
In tetrahydrofuran; toluene at 50℃; for 1.5h;74.3%
In tetrahydrofuran; toluene at 50℃; for 1h;65%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

(4-(benzyloxy)phenyl)(5-(4-(benzyloxy)phenyl)thiazol-2-yl)methanone

(4-(benzyloxy)phenyl)(5-(4-(benzyloxy)phenyl)thiazol-2-yl)methanone

Conditions
ConditionsYield
With sodiumsulfide nonahydrate; water; iodine; acetic acid In dimethyl sulfoxide at 100℃; for 8h;73%
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

O-benzyl-N-tert-butoxycarbonyl-L-tyrosine
2130-96-3

O-benzyl-N-tert-butoxycarbonyl-L-tyrosine

Conditions
ConditionsYield
With sodium hydroxide In 1,4-dioxane; water at 20 - 40℃; for 18h; pH=10.4;70%
In water; tert-butyl alcohol pH 9.5-10.0;
With sodium hydroxide; sodium hydrogencarbonate In 1,4-dioxane at 20℃;
With sodium hydroxide In water; tert-butyl alcohol at 20℃;2.46 g
Stage #1: O-benzyl-S-tyrosine With sodium hydroxide In water; tert-butyl alcohol Cooling with ice;
Stage #2: di-tert-butyl dicarbonate In water; tert-butyl alcohol at 20℃;
Stage #3: With hydrogenchloride In water; tert-butyl alcohol
2.46 g
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

(4-(benzyloxy)phenyl)(5-(4-(benzyloxy)phenyl)oxazol-2-yl)methanone

(4-(benzyloxy)phenyl)(5-(4-(benzyloxy)phenyl)oxazol-2-yl)methanone

Conditions
ConditionsYield
With water; iodine; trifluoroacetic acid In dimethyl sulfoxide at 120℃; for 8h;66%
methanol
67-56-1

methanol

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

O-benzyltyrosine methyl ester
57177-83-0

O-benzyltyrosine methyl ester

Conditions
ConditionsYield
With thionyl chloride at 40℃; for 4h; Esterification;64%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

zinc diacetate
557-34-6

zinc diacetate

[(C6H5CH2OC6H4CH2CH(NH2)COO)2Zn]

[(C6H5CH2OC6H4CH2CH(NH2)COO)2Zn]

Conditions
ConditionsYield
With sodium hydroxide In methanol; water addn. of soln. of PhCH2OC6H4CH2CH(NH2)CO2H in MeOH to aq. NaOH and Zn(OAc)2 (0.5 equiv.), stirring for 3 h at 50-60°C; removal of solvent, washing several times with Et2O, MeOH and H2O, elem.anal.;63%
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

Tyr(Bn)-tBu.HCl

Tyr(Bn)-tBu.HCl

Conditions
ConditionsYield
Stage #1: di-tert-butyl dicarbonate; O-benzyl-S-tyrosine With sodium hydrogencarbonate In tetrahydrofuran; water for 3h;
Stage #2: With tert-Butyl 2,2,2-trichloroacetimidate In tetrahydrofuran
Stage #3: With hydrogenchloride; trifluoroacetic acid In dichloromethane; water
60%
O-benzyl-S-tyrosine
16652-64-5

O-benzyl-S-tyrosine

bromoacetic acid methyl ester
96-32-2

bromoacetic acid methyl ester

(methoxycarbonyl)methyl 2-(bis(methoxycarbonylmethyl)-L-amino)-3-(4-(benzyloxy)phenyl)propionate
1022087-04-2

(methoxycarbonyl)methyl 2-(bis(methoxycarbonylmethyl)-L-amino)-3-(4-(benzyloxy)phenyl)propionate

Conditions
ConditionsYield
With tetra-(n-butyl)ammonium iodide; potassium carbonate In various solvent(s) at 108℃; for 16h;55%

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