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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 quantiti

L-Tyrosine

Cas:60-18-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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SICHUAN TONGSHENG AMINOACID CO.LTD

Sichuan Tongsheng is the most strongest manufacturer and exporter of amino acids and their derivatives in China, we have the best quality and price. Guarantee high quality, competive price and reliable service. We fully compliance with ISO9001:2008,

L-Tyrosine

Cas:60-18-4

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Chengdu Baishixing Science and Technology Industry Co., Ltd.

The area of Chengdu Baishixing is 35,000 square metre , the staff members are 88, our output value is over 120 millions per year. Baishiying cooporates with Life Science Academy of Wuhan University to develop amino acids series products.We ha

L-Tyrosine

Cas:60-18-4

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Hangzhou Viablife Biotech CO.,LTD

High quality, best service,competitive price are our principle 1.Low price & high quality products (G-KG) & first-class service are waiting for our clients 2.Professional transport team to ensure the goods safety and on time arrived your

L-tyrosine cas:60-18-4 L-2-amino-3-(4-hydroxyphenyl)propanoic acid

Cas:60-18-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Trading Company

inquiry

Hefei Zhaobo Technology Co., Ltd.

Factory price L-Tyrosine CAS 60-18-4 Purity: 99% Min Application: Intermediates Appearance: Powder Package: Bag Delivery: 3-5days Our Advantage & Service 1.Top quality: Using high quality material and establishing a strict quality co

Factory price L-Tyrosine CAS 60-18-4

Cas:60-18-4

Min.Order:1 Kilogram

FOB Price: $10.0 / 50.0

Type:Trading Company

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Sichuan Jisheng BioPharmaceutical Co., Ltd.

Name:L-Tyrosine Type: Food Additives CAS:60-18-4 Purity:99% Appearance:White powder Storage:Sealed storage Packing Specification:1kg, 5kg, 10kg,25kg Molecular Formula:C9H11NO3 Molecular Weight:181.19 Application:Food industry

L-Tyrosine60-18-4Sufficient supply high-quality

Cas:60-18-4

Min.Order:0 Metric Ton

Negotiable

Type:Trading Company

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Vertexyn (Nanjing) Bioworks Co., Ltd.

Product advantages: ①L-tyrosinel is a competitive product of our company, and free samples can be applied for. ② It is available in stock for quick shipment. ③ Biological synthesis, natural, healthy, can be safely used in medicine, dyes, feed and

Shanxi Zorui Biotechnology Co.Ltd.

Zorui combines R&D, production and sales into its operations, While continuously providing high-quality raw materials, we also provide and optimize technical solutions for customers to achieve mutual benefit. We adhere to the "quality, integ

L Tyrosine Pure L-Tyrosine Amino Acid Powder CAS 60-18-4

Cas:60-18-4

Min.Order:1 Kilogram

Negotiable

Type:Other

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Qingdao Beluga Import and Export Co., LTD

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 intermediates, steroids, pharmaceutical

L-Tyrosine/60-18-4/L-Tyrosine price

Cas:60-18-4

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: L-Tyrosine CAS No.:60-18-4 Molecule Formula:C9H11NO3 Molecule Weight:181.19 Purity: 99.6% Package: 25kg/drum Description:White crystals or crystalline powder Manufacturer standard: FCCIV,AJI, USP, EP.

White powder L-Tyrosine

Cas:60-18-4

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Greenutra Resource Inc

L- Tyrosine Appearance:White powder Storage:Store in a cool dry place, avoiding sunlight directly Package:Food grade multiplayer polyethylene bags, 25kg in one type cardboard drum Application:Nutritional health products and food additives

L- Tyrosine

Cas:60-18-4

Min.Order:1 Kilogram

FOB Price: $16.0 / 100.0

Type:Trading Company

inquiry

Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance White crystals or crystalline powder White crystalline powder Identification

High purity L-Tyrosine with high quality cas:60-18-4

Cas:60-18-4

Min.Order:1 Kilogram

FOB Price: $12.0 / 15.0

Type:Manufacturers

inquiry

Sinoway Industrial Co., Ltd.

Why is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days. 4) We have warehouse in USA with quickly shipment . 5) We c

99% up 2-Amino-3-(4-hydroxyphenyl)-L-Alanine L-Tyrosine 60-18-4

Cas:60-18-4

Min.Order:25 Kilogram

Negotiable

Type:Trading Company

inquiry

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 supplier in China

Cas:60-18-4

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Kono Chem Co.,Ltd

CAS No.: 60-18-4 Other Names: L-Tyrosine MF: C9H11NO3 EINECS No.: 200-460-4 Place of Origin: Henan, China (Mainland) Type: Vitamins, Amino Acids and Coenzyme

Factory Supply L-Tyrosine, Pharmaceutical Raw Material L-Tyrosine, CAS NO: 60-18-4

Cas:60-18-4

Min.Order:1 Kilogram

FOB Price: $600.0 / 700.0

Type:Other

inquiry

Jinan Finer Chemical Co., Ltd

Product description: Product name L-Tyrosine CAS number 60-18-4 Assay ≥99% Appearance White crystalline powder Capacity 500mt/year Application Food/feed additives,Nutritional

L-Tyrosine

Cas:60-18-4

Min.Order:10 Gram

FOB Price: $12.0

Type:Lab/Research institutions

inquiry

Wuhan Fortuna Chemical Co.,Ltd

Unique advantages of L-Tyrosine Cas 60-18-4 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White crystalline powder Storage:Cool dry place Package:25kg/drum Applica

Factory supply L-Tyrosine Cas 60-18-4 with top quality and best price

Cas:60-18-4

Min.Order:25 Kilogram

Negotiable

Type:Trading Company

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Hefei TNJ chemical industry co.,ltd

CAS No:60-18-4 Molecule Formula:C9H11NO3 Molecule Weight:181.19 Description:White crystals or crystalline powder; tasteless. Freely soluble in formic acid, very slightly soluble in water, practically in

good quality L-Tyrosine

Cas:60-18-4

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Xi'an Quanao Biotech Co., Ltd.

Best Price&Quality Nutrition Supplement L-Tyrosine 99% Powder Xi'an Quanao Biotech Co., Ltd. is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, peptide,Nootropis etc API, food and feed additi

Best Price&Quality Nutrition Supplement L-Tyrosine 99% Powder

Cas:60-18-4

Min.Order:1000 Kilogram

FOB Price: $11.9 / 13.4

Type:Manufacturers

inquiry

Hangzhou Think Chemical Co. Ltd

L-Tyrosine[CAS:60-18-4] USP30 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 & distribution, thin

Manufacture L-Tyrosine USP30

Cas:60-18-4

Min.Order:25 Kilogram

Negotiable

Type:Other

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

L-Tyrosine

Cas:60-18-4

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Ality Chemical Corporation

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

Factory Supply L-Tyrosine

Cas:60-18-4

Min.Order:1

Negotiable

Type:Other

inquiry

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 C

L- Tyrosine manufacturer with low price

Cas:60-18-4

Min.Order:1 Gram

Negotiable

Type:Manufacturers

inquiry

Baoding Faithful Industry Co., Ltd.

Sales: 1.24hours to reply your E-mail 2.Market information trend share with customers Suggestion for purchase decision Reputation: 1.Implementing contract terms strictly 2.Timely solve any discrepancy or goods claims Take our responsibility for loss

tyrosine

Cas:60-18-4

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Xi'an Xszo Chem Co., Ltd.

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

High Quality Food Grade L-Tyrosine 60-18-4 HACCP Manufacturer

Cas:60-18-4

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd

ADVANTAGE: 1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day 2. The products are provided with COA, HPLC, NMR, quality assurance,

L-Tyrosine

Cas:60-18-4

Min.Order:10 Metric Ton

Negotiable

Type:Manufacturers

inquiry

COLORCOM LTD.

Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on

3-(4-Hydroxyphenyl)-L-Alanine

Cas:60-18-4

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Wuxi TAA Chemical Industry Co.,LTD.

1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards. 2. Now we have established long-term s

Factory supply tyrosine/CAS 60-18-4

Cas:60-18-4

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Other

inquiry

Chemwill Asia Co., Ltd.

Chemwill Asia co.,Ltd is one of the leading manufacturer in CHINA.Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Active pharmaceutical ingredients(APIs), Veterinary, Indole derivatives, Arom

Buy Good Quality L-Tyrosine

Cas:60-18-4

Min.Order:100 Gram

Negotiable

Type:Manufacturers

inquiry

Hebei yanxi chemical co.,LTD.

Hebei yanxi chemical co., LTD is a professional research, development and production . enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carbon environmental protection

L-Tyrosine

Cas:60-18-4

Min.Order:1 Kilogram

FOB Price: $11.0 / 16.0

Type:Trading Company

inquiry

Synthetic route

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

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

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 0.5h;100%
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 0.5h; Product distribution; New peptide deprotection procedure: hard-soft acid-base concept; the role of soft bases (thioanisole, dimethylsulfide, diphenylsulfide) employed.;100%
With dimethylsulfide; hydrogen fluoride at 0℃; for 2h; Product distribution; Var.: HF in anisole;99.5%
L-Tyr-OMe
1080-06-4

L-Tyr-OMe

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With ammonium bicarbonate; water In dichloromethane for 15h; α-chymotrypsin;100%
at 25℃; for 0.833333h; enzyme alcalase from Bacillus licheniforms; pH 8.2;
With water at 37℃; Rate constant; pH 7.4; apparent rate constant of product formation; calculated nasal absorption rate constant;
With water; sodium chloride In dimethyl sulfoxide at 37℃; Rate constant; also human plasma as reagent;
Multi-step reaction with 4 steps
1: dichloromethane / 20 °C
2: copper diacetate; oxygen / acetonitrile / 20 h
3: potassium hydroxide / methanol; water / 7 h / Reflux
4: dimethyl sulfoxide; aq. phosphate buffer / 24 h / 37 °C / pH 7.4
View Scheme
L-tyrosine ethyl ester
949-67-7

L-tyrosine ethyl ester

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With ammonium bicarbonate; water In dichloromethane for 12h; α-chymotrypsin;100%
With water at 37℃; Rate constant; pH 7.4; apparent rate constant of product formation; calculated nasal absorption rate constant;
With water; sodium chloride In dimethyl sulfoxide at 37℃; Rate constant; also human plasma as reagent;
N,O-bis-allyloxycarbonyl-L-tyrosine
104669-68-3

N,O-bis-allyloxycarbonyl-L-tyrosine

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; tri-n-butyl-tin hydride; acetic acid In dichloromethane Product distribution; slectivity of cleavge of allyl and allyloxycarbonyl groups; other amino acid derivatives;100%
With tri-n-butyl-tin hydride; bis-triphenylphosphine-palladium(II) chloride In dichloromethane Ambient temperature;95%
N-tert-butoxycarbonyl-O-2,6-dichlorobenzyl-L-tyrosine
40298-71-3

N-tert-butoxycarbonyl-O-2,6-dichlorobenzyl-L-tyrosine

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With Nafion H; dimethylsulfide; 3-methyl-phenol; trifluoroacetic acid for 3h;100%
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 0.5h;100%
With trimethylsilyl trifluoromethanesulfonate; methyl-phenyl-thioether In trifluoroacetic acid at 0℃; for 0.5h; Product distribution; New peptide deprotection procedure: hard-soft acid-base concept; the role of soft bases (thioanisole, dimethylsulfide, diphenylsulfide) employed.;100%
Boc-Tyr-OH
3978-80-1

Boc-Tyr-OH

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With water at 170℃; for 0.05h; Microwave irradiation;100%
With sodium tetrahydroborate In methanol; aq. phosphate buffer at 20℃; for 1h; Cooling with ice; Sealed tube;87%
Multi-step reaction with 3 steps
1: potassium fluoride / N,N-dimethyl-formamide / 72 h / 20 °C
2: trifluoroacetic acid / dichloromethane / 24 h / 20 °C
3: acetonitrile / 2.6 h / pH 7.2 / Photolysis; HEPES buffer
View Scheme
4-Hydroxyphenylpyruvic acid
156-39-8

4-Hydroxyphenylpyruvic acid

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With formate dehydrogenase; NAD; ammonium formate at 30℃; for 24h; PheDH;99%
With L-phenylalanine; L-specific transaminase ywfG at 20℃; for 16h; pH=8; aq. potassium phosphate buffer; Enzymatic reaction;
4-hydroxyphenylpyruvate-
622-54-8

4-hydroxyphenylpyruvate-

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With ammonium formate; tris hydrochloride; nicotinamide adenine dinucleotide; formate dehydrogenase; phenylalanine dehydrogenase In water at 30℃; for 24h;99%
With L-glutamic acid; pyridoxal 5'-phosphate In water at 40℃; for 4h; E.coli Aspartate transaminase, pH 8;80%
(RS)-tyrosinamide hydrochloride
117888-80-9

(RS)-tyrosinamide hydrochloride

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With pyridoxal 5'-phosphate monohydrate; cobalt(II) chloride In aq. buffer at 40℃; for 6h; pH=7.0; Enzymatic reaction;99%
(Z)-2-benzamido-3-(p-hydroxyphenyl)-2-propenic acid
64896-32-8

(Z)-2-benzamido-3-(p-hydroxyphenyl)-2-propenic acid

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With hydrogen; PF6 In tetrahydrofuran at 25℃; under 760 Torr;98%
With hydrogen; PF6 In tetrahydrofuran at 25℃; under 760 Torr; effects of solvents dependency of the optical yields;
Nα-(allyloxycarbonyl)tyrosine O-allyl ether
104669-69-4

Nα-(allyloxycarbonyl)tyrosine O-allyl ether

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With tri-n-butyl-tin hydride; bis-triphenylphosphine-palladium(II) chloride In dichloromethane Ambient temperature;95%
D,L-Tyr-OPron
125511-37-7

D,L-Tyr-OPron

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With Alcalase; pyridoxal 5'-phosphate; water In tert-butyl alcohol at 40℃; for 4h; pH=8.5; racemization of D-enantiomer; kin. resolution;95%
benzyl tyrosinate
137838-07-4

benzyl tyrosinate

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With Alcalase; pyridoxal 5'-phosphate; water In tert-butyl alcohol at 40℃; for 3h; pH=8.5; racemization of D-enantiomer; kin. resolution;95%
With Alcalase; 3,5-dichlorobenzaldehyde In water; acetonitrile at 35℃; for 24h; pH=8.5; Enzymatic reaction; optical yield given as %ee;95%
(S)-2-amino-3-(4-(propa-1,2-dien-1-yloxy)phenyl)propanoic acid

(S)-2-amino-3-(4-(propa-1,2-dien-1-yloxy)phenyl)propanoic acid

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With tris[(3-sulfophenyl)phosphine]palladium(0) dodecasodium salt In aq. phosphate buffer; dimethyl sulfoxide at 37℃; for 0.0833333h; pH=7.8; Catalytic behavior; Reagent/catalyst;95%
tyrosine ethyl ester
34081-17-9

tyrosine ethyl ester

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With Alcalase; 3,5-dichlorobenzaldehyde In water; acetonitrile at 35℃; for 72h; pH=7.5; Enzymatic reaction; optical yield given as %ee;92%
With α-chymotrypsin In water; acetone at 30℃; for 24h; Product distribution; var. solvents; other amino acids;50%
D,L-TyrO-iPr
81084-84-6

D,L-TyrO-iPr

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With Alcalase; 3,5-dichlorobenzaldehyde In water; acetonitrile at 35℃; for 120h; pH=8.0; Enzymatic reaction; optical yield given as %ee;92%
hexan-1-amine
111-26-2

hexan-1-amine

(S)-2-(3,5-Dinitro-4-oxo-4H-pyridin-1-yl)-3-(4-hydroxy-phenyl)-propionic acid
78641-67-5

(S)-2-(3,5-Dinitro-4-oxo-4H-pyridin-1-yl)-3-(4-hydroxy-phenyl)-propionic acid

A

L-tyrosine
60-18-4

L-tyrosine

B

1-hexyl-3,5-dinitro-4-pyridone
74197-48-1

1-hexyl-3,5-dinitro-4-pyridone

Conditions
ConditionsYield
In pyridine Product distribution;A 88.3%
B n/a
tyrosine methyl ester hydrochloride
3417-91-2, 3728-20-9, 68697-61-0

tyrosine methyl ester hydrochloride

A

tyrosine
556-02-5

tyrosine

B

D-tyrosine methyl ester
3410-66-0

D-tyrosine methyl ester

C

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
at 30℃; for 0.333333h; enzyme alcalase from Bacillus licheniforms; pH 8.0; Yields of byproduct given;A n/a
B 86%
C n/a
at 30℃; for 0.333333h; enzyme alcalase from Bacillus licheniforms; pH 8.0; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
p-borono-L-phenylalanine
76410-58-7

p-borono-L-phenylalanine

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With sodium L-ascorbate; fluorescein free acid In aq. phosphate buffer for 0.5h; pH=7.4; Irradiation;85%
piruvate
57-60-3

piruvate

phenol
108-95-2

phenol

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With ethylenediaminetetraacetic acid; pyridoxal 5'-phosphate; Ammonium; recombinant wild-type thermophilic tyrosine phenol lyases from thermophilic microorganism Symbiobacterium toebii In aq. phosphate buffer at 37℃; pH=8; Green chemistry; Enzymatic reaction; stereoselective reaction;84%
With ammonium chloride at 50℃; β-tyrosinase from Symbiobacterium thermophilum, 0.2 mM pyridoxal-5'-phosphate, 50 mM potassium phosphate buffer pH 8.0;
(S)-tert-butyl 2-((tert-butoxycarbonyl)amino)-3-(4-hydroxyphenyl)propanoate
18938-60-8

(S)-tert-butyl 2-((tert-butoxycarbonyl)amino)-3-(4-hydroxyphenyl)propanoate

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With acetic acid In water at 160℃; for 0.0833333h; Microwave irradiation; optical yield given as %ee;81%
Multi-step reaction with 3 steps
1.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; dmap / dichloromethane / 0 - 21 °C / Inert atmosphere
2.1: trifluoroacetic acid / dichloromethane / 0 - 21 °C / Inert atmosphere
2.2: Inert atmosphere
3.1: water / 24 h / 21 °C / pH 7.5
View Scheme
L-serin
56-45-1

L-serin

phenol
108-95-2

phenol

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With ammonium acetate In water at 37℃; for 20h; pH 8.5; with Erwinia herbicola;80%
at 70℃; for 2.5h; β-tyrosinase from Symbiobacterium thermophilum, 50 mM potassium phosphate buffer pH 8.0;
(S)-4-(4-hydroxybenzyl)-2,2-borabicyclo[3.3.1]nonane-1,3,2-oxazaborilidin-5-one

(S)-4-(4-hydroxybenzyl)-2,2-borabicyclo[3.3.1]nonane-1,3,2-oxazaborilidin-5-one

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With hydrogenchloride In methanol; water at 20℃; for 0.5h; Inert atmosphere;80%
methanol
67-56-1

methanol

(S)-2-[(S)-2-Amino-3-(4-hydroxy-phenyl)-propionylamino]-3-(4-hydroxy-phenyl)-propionic acid
1050-28-8

(S)-2-[(S)-2-Amino-3-(4-hydroxy-phenyl)-propionylamino]-3-(4-hydroxy-phenyl)-propionic acid

A

benzyl methyl ether
538-86-3

benzyl methyl ether

B

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With potassium hydroxide; [bis(acetoxy)iodo]benzene at 0 - 5℃; for 1.5h;A 78%
B n/a
Cbz-Tyr-OH
1164-16-5

Cbz-Tyr-OH

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With boron trichloride In dichloromethane at 25℃; for 0.333333h;72%
With cell extract of Sphingomonas paucimobilis SC 16113 In water at 42℃; for 20h; Enzymatic reaction;100 % Chromat.
With ethylenediaminetetraacetic acid; phenylmethylsulphonyl fluoride; water In aq. phosphate buffer at 30℃; Kinetics; Reagent/catalyst; Microbiological reaction; Enzymatic reaction;
tyrosine methyl ester
1080-06-4, 3410-66-0, 18869-47-1

tyrosine methyl ester

Moz-Asp(Bzl)-OBzl
145126-13-2

Moz-Asp(Bzl)-OBzl

A

L-tyrosine
60-18-4

L-tyrosine

B

Moz-Asp(Bzl)-D-Tyr-OMe

Moz-Asp(Bzl)-D-Tyr-OMe

Conditions
ConditionsYield
Stage #1: tyrosine methyl ester With Alcalase; water In tert-butyl alcohol at 25℃; pH=8.5; kinetic resolution;
Stage #2: Moz-Asp(Bzl)-OBzl With Alcalase In tert-butyl alcohol Condensation;
A n/a
B 63%
D,L-tyrosine benzyl ester hydrochloride
15035-17-3, 87004-79-3

D,L-tyrosine benzyl ester hydrochloride

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
Stage #1: D,L-tyrosine benzyl ester hydrochloride With lithium carbonate In water; tert-butyl alcohol at 23℃; for 0.166667h; Resolution of racemate;
Stage #2: With 2-Hydroxymethylpyridine; Alcalase; water; zinc(II) acetate dihydrate In tert-butyl alcohol at 23℃; for 4h; Resolution of racemate; Enzymatic reaction; optical yield given as %ee;
63%
(S)-3-benzyloxycarbonyl-4-(4-hydroxyphenyl)methyloxazolidin-5-one
205866-50-8

(S)-3-benzyloxycarbonyl-4-(4-hydroxyphenyl)methyloxazolidin-5-one

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With boron trichloride In dichloromethane at 25℃; for 0.333333h;62%
(2S)-2-amino-3-[4-(prop-2-ynyloxy)phenyl]-propionic acid

(2S)-2-amino-3-[4-(prop-2-ynyloxy)phenyl]-propionic acid

L-tyrosine
60-18-4

L-tyrosine

Conditions
ConditionsYield
With tris[(3-sulfophenyl)phosphine]palladium(0) dodecasodium salt In aq. phosphate buffer; dimethyl sulfoxide at 37℃; for 0.0833333h; pH=7.8; Catalytic behavior; Reagent/catalyst;47%
methanol
67-56-1

methanol

L-tyrosine
60-18-4

L-tyrosine

L-Tyr-OMe
1080-06-4

L-Tyr-OMe

Conditions
ConditionsYield
With thionyl chloride 1.) room temperature, 2 h, 2.) reflux, 0.5 h;100%
With thionyl chloride100%
With thionyl chloride at 0 - 20℃;99%
ethanol
64-17-5

ethanol

L-tyrosine
60-18-4

L-tyrosine

L-tyrosine ethyl ester
949-67-7

L-tyrosine ethyl ester

Conditions
ConditionsYield
With hydrogenchloride100%
With sulfuric acid at -10℃; Reflux;90.2%
With amberlyst-15 Ambient temperature;70%
ethyl trifluoroacetate,
383-63-1

ethyl trifluoroacetate,

L-tyrosine
60-18-4

L-tyrosine

N-trifluorosulfonyl-L-tyrosine
350-10-7

N-trifluorosulfonyl-L-tyrosine

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; for 168h;100%
With potassium methanolate In methanol at 40℃;86%
With methanol; ion-exchange resin + form>; N,N,N',N'-tetramethylguanidine
L-tyrosine
60-18-4

L-tyrosine

benzyl chloroformate
501-53-1

benzyl chloroformate

Cbz-Tyr-OH
1164-16-5

Cbz-Tyr-OH

Conditions
ConditionsYield
With sodium hydroxide In tetrahydrofuran; water at 20℃; for 4h; Inert atmosphere; Cooling with ice;100%
With N-ethyl-N,N-diisopropylamine96%
With sodium hydroxide In tetrahydrofuran; water at 20℃; for 12h; Cooling with ice;95%
methanol
67-56-1

methanol

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

L-tyrosine
60-18-4

L-tyrosine

(S)-N-(tert-butoxycarbonyl)tyrosine methyl ester
4326-36-7

(S)-N-(tert-butoxycarbonyl)tyrosine methyl ester

Conditions
ConditionsYield
Stage #1: methanol; L-tyrosine With thionyl chloride for 3h; Inert atmosphere; Heating;
Stage #2: di-tert-butyl dicarbonate With triethylamine In methanol for 20h; Inert atmosphere;
100%
Stage #1: methanol; L-tyrosine With thionyl chloride Heating;
Stage #2: di-tert-butyl dicarbonate With sodium hydrogencarbonate In 1,4-dioxane; water at 20℃; Further stages.;
L-leucine
61-90-5

L-leucine

L-phenylalanine
63-91-2

L-phenylalanine

L-tyrosine
60-18-4

L-tyrosine

glycine
56-40-6

glycine

H-Tyr-Gly-Gly-Phe-Leu-NH2
60117-24-0

H-Tyr-Gly-Gly-Phe-Leu-NH2

Conditions
ConditionsYield
Stage #1: L-tyrosine With BF4(1-)*C7H13N3Pol(1+); benzotriazol-1-ol; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In 1-methyl-pyrrolidin-2-one at 25℃; for 1h; Ionic liquid; Automated synthesizer; solid phase reaction;
Stage #2: glycine In 1-methyl-pyrrolidin-2-one at 25℃; for 1h; Ionic liquid; Automated synthesizer; solid phase reaction;
Stage #3: L-leucine; L-phenylalanine Further stages;
100%
dimethylallyl diphosphate
358-72-5

dimethylallyl diphosphate

L-tyrosine
60-18-4

L-tyrosine

O-prenyl-L-tyrosine

O-prenyl-L-tyrosine

Conditions
ConditionsYield
With tyrosine prenyltransferase SirD from Leptosphaeria maculans; calcium chloride In dimethyl sulfoxide; glycerol at 37℃; for 1.5h; pH=7.5; Reagent/catalyst; Enzymatic reaction;100%
With 7-dimethylallyl tryptophan synthase from Aspergillus fumigatus; calcium chloride In dimethyl sulfoxide; glycerol at 37℃; for 16h; pH=7.5; Kinetics; Enzymatic reaction; stereoselective reaction;36%
With potassium chloride; magnesium chloride In aq. buffer at 35℃; for 16h; pH=7.5; Kinetics;
With recombinant N-1‑dimethylallyltryptophan synthase from Fusarium f ujikuroi at 35℃; pH=7 - 9; Kinetics; Enzymatic reaction; regiospecific reaction;
L-tyrosine
60-18-4

L-tyrosine

di(n-butyl)tin oxide
818-08-6

di(n-butyl)tin oxide

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

(S,E)-6,6-dibutyl-3-(4-hydroxybenzyl)naphtho[1,2-h][1,3,6,2]dioxazastannonin-4(3H)-one

(S,E)-6,6-dibutyl-3-(4-hydroxybenzyl)naphtho[1,2-h][1,3,6,2]dioxazastannonin-4(3H)-one

Conditions
ConditionsYield
In methanol at 120℃; for 0.25h; Microwave irradiation;99.28%
dichlorotricarbonylruthenium(II) dimer

dichlorotricarbonylruthenium(II) dimer

L-tyrosine
60-18-4

L-tyrosine

tricarbonylchloro(tyrosinato)ruthenium(II)

tricarbonylchloro(tyrosinato)ruthenium(II)

Conditions
ConditionsYield
With sodium methylate In methanol at 20℃; for 24h; Inert atmosphere; Schlenk technique; Darkness;99.2%
L-tyrosine
60-18-4

L-tyrosine

tyrosamine
51-67-2

tyrosamine

Conditions
ConditionsYield
With pyridoxal 5'-phosphate; aromatic L-amino acid decarboxylase In various solvent(s) at 30℃; for 48h;99%
at 300 - 340℃;
Bestrahlen der Kristalle mit Roentgen-Strahlen;
L-tyrosine
60-18-4

L-tyrosine

methyl chloroformate
79-22-1

methyl chloroformate

(S)-3-(4-hydroxyphenyl)-2-[(methoxycarbonyl)amino] propionic acid
338386-45-1

(S)-3-(4-hydroxyphenyl)-2-[(methoxycarbonyl)amino] propionic acid

Conditions
ConditionsYield
With sodium hydrogencarbonate In tetrahydrofuran; water at 20℃;99%
With sodium hydroxide In water at 5℃; for 1.5h; Schotten-Baumann reaction;90%
With sodium hydrogencarbonate In tetrahydrofuran; water at 20℃;80%
With sodium hydroxide In 1,4-dioxane; water at 0 - 20℃;
L-tyrosine
60-18-4

L-tyrosine

4-((3H-diazirin-3-yl)methyl)phenol

4-((3H-diazirin-3-yl)methyl)phenol

Conditions
ConditionsYield
With [bis(acetoxy)iodo]benzene; ammonia In methanol at 0 - 20℃; for 2h; Inert atmosphere;99%
L-tyrosine
60-18-4

L-tyrosine

acetyl chloride
75-36-5

acetyl chloride

(S)-3-(3-acetyl-4-hydroxyphenyl)-2-aminopropanoic acid hydrochloride
32404-28-7

(S)-3-(3-acetyl-4-hydroxyphenyl)-2-aminopropanoic acid hydrochloride

Conditions
ConditionsYield
With aluminium trichloride In nitrobenzene at 100℃; for 6h;98%
Stage #1: L-tyrosine With aluminum (III) chloride In nitrobenzene at 20℃; for 0.166667h;
Stage #2: acetyl chloride In nitrobenzene at 100℃; for 6h;
83%
With aluminium trichloride In nitrobenzene at 100℃; Friedel-Crafts acetylation;80%
methanol
67-56-1

methanol

isobutyraldehyde
78-84-2

isobutyraldehyde

(S)-3-(4-Hydroxy-phenyl)-2-(2-methyl-1-methylcarbamoyl-propylamino)-propionic acid methyl ester

(S)-3-(4-Hydroxy-phenyl)-2-(2-methyl-1-methylcarbamoyl-propylamino)-propionic acid methyl ester

Conditions
ConditionsYield
at -30 - 20℃;98%
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