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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

D(+)-Tryptophan Manufacturer/High quality/Best price/In stock

Cas:153-94-6

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Shanghai SE Pharm Co., Ltd

1. made in GMP plant, commerially 2. Normal Stock: 500kgs 3. Audit accepted. Related documents are available to offer and audited by many clients. 4. Chromatographic Purity (HPLC): not less than 99.0% Appearance:white colour Storage:commercial Pac

D-Tryptophan

Cas:153-94-6

Min.Order:0 Metric Ton

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Type:Manufacturers

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Simagchem Corporation

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 customers

D(+)-Tryptophan

Cas:153-94-6

Min.Order:1 Metric Ton

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Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Assay (Ursolic acid) 98%min 98.22% ----------------------------------------------------------------

High purity 153-94-6 D-Tryptophan

Cas:153-94-6

Min.Order:1 Gram

FOB Price: $100.0 / 500.0

Type:Trading Company

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Wuhan Fortuna Chemical Co.,Ltd

Unique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White to light yellow powder Storage:Cool dry place Package:1kg/foill bag;25kg/drum Appl

Factory supply D(+)-Tryptophan Cas 153-94-6 with high quality and best price

Cas:153-94-6

Min.Order:1 Kilogram

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Type:Trading Company

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Xi'an Quanao Biotech Co., Ltd.

We are: Focus on the research, production and sale of Plant and Animal extract, Medical intermediate, complete coverage six industries. Product grade: Medicine, Health care product, Cosmetics, Food,Feed, Biopesticide. Hot selling market: Europe,

D-Tryptophan CAS 153-94-6

Cas:153-94-6

Min.Order:1 Kilogram

FOB Price: $202.0 / 206.0

Type:Manufacturers

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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 d tryptophan

Cas:153-94-6

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

Large Stock 99.0% A-methyl-dl-tryptophan 153-94-6 Producer

Cas:153-94-6

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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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 guarantee high quality, competive price and reliable service. We fully compliance with ISO9001:2008, production and quality managemen

D-Tryptophan

Cas:153-94-6

Min.Order:1 Gram

Negotiable

Type:Manufacturers

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Chemwill Asia Co., Ltd.

D(+)-Tryptophan CAS 153-94-6 In stock

Cas:153-94-6

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Manufacturers

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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

D-Tryptophan 153-94-6 china supplier chemical Pharmaceutic intermediate sample CAS No.: 153-94-6

Cas:153-94-6

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Trading Company

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Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com/pro01en/id/1871.html Product Name D(+)-Tryptophan CAS No. 153-94-6

D(+)-Tryptophan

Cas:153-94-6

Min.Order:1 Gram

FOB Price: $2.0

Type:Lab/Research institutions

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Henan Tianfu Chemical Co., Ltd.

Product Name: D(+)-Tryptophan Synonyms: D-TRP;D(+)-TRYPTOPHAN;D-TRYPTOPHAN;D-TRYPTOPHANE;D-2-AMINO-3-(3-INDOLYL)PROPIONIC ACID;D-2-AMINO-3-INDOLEPROPIONIC ACID;D-2-AMINO-3-INDOLYLPROPANOIC ACID;D-ALPHA-AMIN

D(+)-Tryptophan chemical

Cas:153-94-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

Supply Hot CAS 153-94-6 98% L-Tryptophan for Feed Grade Price

Cas:153-94-6

Min.Order:1 Gram

FOB Price: $1000.0 / 1300.0

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

HPLC 98% CAS 153-94-6 with fast shipping

Cas:153-94-6

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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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

Hot Sell Factory Supply Raw Material CAS 153-94-6,D-Tryptophan

Cas:153-94-6

Min.Order:10 Kilogram

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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 dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W

D(+)-Tryptophan CAS153-94-6

Cas:153-94-6

Min.Order:1 Kilogram

FOB Price: $289.0 / 499.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Appearance: White or yellow crystalline powder Molecular Weight: 204.23 Density: 1.362 g/cm3 Boiling Point: 447.9 °C at 760 mmHg Melting Point: 282-285℃ Flash Point: 447.9 °C at 760 mmHg Alpha:

D-Tryptophan 153-94-6

Cas:153-94-6

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

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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

D-tryptophan manufacturer/supplier

Cas:153-94-6

Min.Order:1 Gram

Negotiable

Type:Trading Company

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Hangzhou Sartort Biopharma Co., Ltd

Appearance:White or yellow crystalline powder Storage:Room temperature Package:25kg/drum Application:Amino acid Transportation:Express/Sea/Air Port:Any port in china

High Purity Factory supply D(+)-Tryptophan In Stock

Cas:153-94-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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HANWAYS CHEMPHARM CO.,LIMITED

1.Prompt Goods; 2.Flexible payment terms; 3.Documents & Certificate support. Name: D(+)-Tryptophan Structure: Formula: C5H9NO2 Molecular Weight : 115.13 Synonyms: L-Proline ,L-2-Pyrrolidinecarboxylic acid;L-PROLINE, NATURAL;L-PROLINE, SYN

D-Tryptophan

Cas:153-94-6

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Shanghai Upbio Tech Co.,Ltd

1.In No Less five years exporting experience. 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Onchem (China) Co.,Ltd is Specia

High quality D-Tryptophan

Cas:153-94-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Xi'an Faithful Biotech Co., Ltd.

We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery

Hangzhou Fonlynn Health Technology Co., Ltd.

Packing: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Appearance:white powder/ Refer to COA Storage:Refer to COA

153-94-6 cas White to slightly yellow powder 98% Ready stock D(+)-Tryptophan

Cas:153-94-6

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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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

D(+)-Tryptophan

Cas:153-94-6

Min.Order:1 Kilogram

FOB Price: $200.0 / 240.0

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

D(+)-Tryptophan CAS:153-94-6 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 intermediat

D(+)-Tryptophan CAS:153-94-6

Cas:153-94-6

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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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

D(+)-Tryptophan

Cas:153-94-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Changchun Artel lmport and Export trade company

Minimum Order Qty. 10 Gram Supply Ability 500 Kilograms/Month Storage store in cool, dry, ventilated place 20℃ Delivery Time 3 business days after payment Payment Term TT,western union,Paypal,MoneyGram Package 10g,20g,50g,100g,500g,1KGS,

D(+)-Tryptophan supplier in China CAS NO.153-94-6

Cas:153-94-6

Min.Order:10 Gram

Negotiable

Type:Trading Company

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Hubei Jiutian Bio-medical Technology Co., Ltd

1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifi

D(+)-Tryptophan CAS 153-94-6

Cas:153-94-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hangzhou Think Chemical Co. Ltd

D-Tryptophan CAS:153-94-6 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, thinkchem spe

D-Tryptophan AJI Stock

Cas:153-94-6

Min.Order:1 Kilogram

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Type:Other

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Synthetic route

C15H15N3*C18H14Cl2N2O3

C15H15N3*C18H14Cl2N2O3

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With benzylamine hydrochloride In water; isopropyl alcohol at 20℃; for 1h;95%
Indole-3-pyruvic acid
392-12-1

Indole-3-pyruvic acid

A

L-Tryptophan
73-22-3

L-Tryptophan

B

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With CC10H14NOSCH2CH2CH3N(CH3)2 (5); zinc diacetate In methanol at 30℃; Product distribution; pH 4.00;A 6%
B 94%
With 5-((3-(dimethylamino)propyl)thio)-4-(aminomethyl)-3-hydroxyl-5,6,7,8-tetraquinoline In methanol at 30℃; Product distribution; stereoselective transaminations at pH=4.00, various reagents;A 6 % Chromat.
B 94 % Chromat.
With phosphate buffer; 6A-monoimidazolyl-6B-(5'-thiopyridoxaminyl)-β-D-cyclodextrin In water at 25℃; Product distribution; other reragents, various pH;
indole
120-72-9

indole

L-serin
56-45-1

L-serin

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
Stage #1: indole; L-serin With Salmonella enterica tryptophan synthase In methanol; aq. phosphate buffer at 37℃; pH=8.0; Enzymatic reaction;
Stage #2: With (2R)-aspartic acid In methanol; aq. phosphate buffer pH=8.0;
Stage #3: In aq. phosphate buffer; deuteromethanol at 37℃; pH=8.0; Enzymatic reaction; stereoselective reaction;
69%
β-(3-indolyl)-α-ketopropanoic acid sodium salt
66872-76-2

β-(3-indolyl)-α-ketopropanoic acid sodium salt

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With zinc(II) perchlorate; (S)-15-amino-methyl-14-hydroxy-5,5-dimethyl-2,8-dithia<9>(2,5)pyridinophane In methanol for 24h; Ambient temperature;62%
D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With sodium hydroxide; oxygen; 2-amino-2-hydroxymethyl-1,3-propanediol In water at 30℃; for 8h; pH=7.3; Resolution of racemate; Enzymatic reaction; enantioselective reaction;48%

A

L-Tryptophan
73-22-3

L-Tryptophan

B

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With Bis(2-ethylhexyl)phosphoric acid; sodium dodecyl-sulfate; O,O'-dibenzoyl-L-tartaric acid In octanol; water at 20℃; for 4h; Reflux; Resolution of racemate; optical yield given as %ee; enantioselective reaction;A n/a
B 18.59%
With (2R,3R,11R,12R)-(+)-18-crown-6-2,3,11,12-tetracarbonic acid In acetonitrile at 25℃; pH=3; Electrochemical reaction;
With teicoplanin In methanol; water Product distribution; Further Variations:; Reagents; pH-values; Solvents;
D-Tryptophan methyl ester
4299-70-1, 7303-49-3, 22032-65-1

D-Tryptophan methyl ester

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With barium dihydroxide; water
With methanol; barium dihydroxide
With Streptomyces spp. 82F2 D-aminopeptidase In dimethyl sulfoxide at 20℃; for 0.0833333h; pH=6.5; aq. buffer; Enzymatic reaction;
N-acetyl-D-tryptophan
2280-01-5

N-acetyl-D-tryptophan

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With hydrogenchloride; water
With sulfuric acid; water
With barium dihydroxide; water
With D-aminoacylase; cobalt(II) chloride hexahydrate at 36 - 37℃; pH=7.4; aq. phosphate buffer; Enzymatic reaction;
Nα-chloroacetyl-D-tryptophan
742100-62-5

Nα-chloroacetyl-D-tryptophan

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With sulfuric acid; water
N-(benzyloxycarbonyl)-D-tryptophan
2279-15-4

N-(benzyloxycarbonyl)-D-tryptophan

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With methanol; palladium; acetic acid Hydrogenation;
indole
120-72-9

indole

L-serin
56-45-1

L-serin

A

2-oxo-propionic acid
127-17-3

2-oxo-propionic acid

B

L-Tryptophan
73-22-3

L-Tryptophan

C

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
N+C5Ala2C16; PL+C2N2C16; copper(II) perchlorate In water at 30℃; for 200h; Product distribution; aq. acetate buffer (pH 5.0, KCl), other catalysts, also with D-serine and DL-serine;
(3-indolylmethyl)trimethylammonium iodide
5457-31-8

(3-indolylmethyl)trimethylammonium iodide

glycine
56-40-6

glycine

A

L-Tryptophan
73-22-3

L-Tryptophan

B

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
Yield given. Multistep reaction;
With hydrogenchloride; sodium hydroxide; S-2-N-(N'-benzylprolyl)aminibenzophenone; sodium methylate 1.) methanol, 2.) acetonitrile, 20 deg C, 3 h, 3.) methanol, reflux; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;
DL-5-indolylmethylhydantoin

DL-5-indolylmethylhydantoin

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With potassium phosphate buffer; Pseudomonas sp. AJ-11220 In various solvent(s) at 30℃; for 2h;
With potassium phosphate buffer; Pseudomonas sp. AJ-11220 In various solvent(s) at 30℃; for 2h; pH 8.0; enzymatic reaction;
N-carbamyl-D-tryptophan
54896-75-2

N-carbamyl-D-tryptophan

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With potassium phosphate buffer; Pseudomonas sp. AJ-11220 In various solvent(s) at 30℃; for 2h;
With potassium phosphate buffer; Pseudomonas sp. AJ-11220 In various solvent(s) at 30℃; for 2h; pH 7.5; enzymatic reaction;
(S)-2-{(N-benzyl-2-pyrrolidinyl)carbonylamino}benzaldehyde
82704-14-1

(S)-2-{(N-benzyl-2-pyrrolidinyl)carbonylamino}benzaldehyde

A

L-Tryptophan
73-22-3

L-Tryptophan

B

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With hydrogenchloride; sodium methylate; nickel(II) nitrate Product distribution; 1.) MeOH, 40 deg C, 24 h, 2.) reflux;
H-Arg-D-Trp-NmePhe-D-Trp-Leu-Met-NH2

H-Arg-D-Trp-NmePhe-D-Trp-Leu-Met-NH2

A

L-arginine
74-79-3

L-arginine

B

N-Methyl-L-phenylalanine
2566-30-5

N-Methyl-L-phenylalanine

C

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With base In water Product distribution; other reagent;
D-tryptophan-ethyl ester

D-tryptophan-ethyl ester

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With sodium hydroxide; ethanol; water
D-tryptophan-isopropyl ester

D-tryptophan-isopropyl ester

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With hydrogenchloride; water
6A-(2-(2-(2-aminoethylamino)ethylamino)ethylamino)-6A-deoxy-β-cyclodextrin (R)-tryptophan complex

6A-(2-(2-(2-aminoethylamino)ethylamino)ethylamino)-6A-deoxy-β-cyclodextrin (R)-tryptophan complex

A

D-tryptophan
153-94-6

D-tryptophan

B

6A-(2-(2-(2-aminoethylamino)ethylamino)ethylamino)-6A-deoxy-β-cyclodextrin

6A-(2-(2-(2-aminoethylamino)ethylamino)ethylamino)-6A-deoxy-β-cyclodextrin

Conditions
ConditionsYield
With sodium perchlorate In water at 25.05℃; Equilibrium constant; Further Variations:; pH-values; decomplexation;
6A-deoxy-6A-(1,4,7,10-tetraazacyclododecan-1-yl)-β-cyclodextrin (R)-tryptophan complex

6A-deoxy-6A-(1,4,7,10-tetraazacyclododecan-1-yl)-β-cyclodextrin (R)-tryptophan complex

A

D-tryptophan
153-94-6

D-tryptophan

B

6A-deoxy-6A-(1,4,7,10-tetraazacyclododecan-1-yl)-β-cyclodextrin

6A-deoxy-6A-(1,4,7,10-tetraazacyclododecan-1-yl)-β-cyclodextrin

Conditions
ConditionsYield
With sodium perchlorate In water at 25.05℃; Equilibrium constant; Further Variations:; pH-values; decomplexation;
D-Tryptophan methyl ester
4299-70-1, 7303-49-3, 22032-65-1

D-Tryptophan methyl ester

A

methanol
67-56-1

methanol

B

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With 2-(di(2-hydroxyethyl)amino)ethanesulfonic acid; lipase from Bacillus thermocatenulanatus In water at 40℃; pH=7.20; Enzyme kinetics;
DL-tryptophan methyl ester
7303-49-3

DL-tryptophan methyl ester

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: di-O-benzoyl-Lg-tartaric acid
2: Ba(OH)2; water
View Scheme
Multi-step reaction with 2 steps
1: beim Behandeln mit Pankreas-Enzym in wss. Loesung
2: Ba(OH)2; methanol
View Scheme
N-acetyl-DL-tryptophan
1218-34-4, 87-32-1

N-acetyl-DL-tryptophan

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: beim Behandeln mit Hilfe von Amidase aus Aspergillus oryzae oder Penicillium vinaceum
2: H2SO4; water
View Scheme
Multi-step reaction with 2 steps
1: quinine
2: H2SO4; water
View Scheme
Multi-step reaction with 2 steps
1: brucine
2: HCl; water
View Scheme
N2-(chloroacetyl)-DL-tryptophan
79189-76-7

N2-(chloroacetyl)-DL-tryptophan

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: pancreas-enzyme / arbeiten in wss. Loesung bei pH 7.6
2: H2SO4; water
View Scheme
(PPh3)2 PdCl2

(PPh3)2 PdCl2

1-acetamido-2-(3-indolyl)ethene

1-acetamido-2-(3-indolyl)ethene

2-(2-isopropyl-5-methylcyclohexyloxy)ethanol

2-(2-isopropyl-5-methylcyclohexyloxy)ethanol

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With CO In tetrahydrofuran; hydrogenchloride
1-acetamido-2-(3-indolyl)ethene

1-acetamido-2-(3-indolyl)ethene

2-(2-isopropyl-5-methylcyclohexyloxy)ethanol

2-(2-isopropyl-5-methylcyclohexyloxy)ethanol

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With CO; (PPh3)2PdCl2 In tetrahydrofuran; hydrogenchloride
trans-cyclo-(D-tryptophanyl-L-tyrosyl)
107911-05-7

trans-cyclo-(D-tryptophanyl-L-tyrosyl)

A

L-tyrosine
60-18-4

L-tyrosine

B

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With hydrogenchloride; water at 110℃; for 16h;
D-Alanine
338-69-2

D-Alanine

Indole-3-pyruvic acid
392-12-1

Indole-3-pyruvic acid

A

2-oxo-propionic acid
127-17-3

2-oxo-propionic acid

B

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With pyridoxal 5'-phosphate; recombinant Lactobacillus salivarius UCC118 D-amino acid aminotransferase In aq. phosphate buffer at 30℃; for 0.0166667h; pH=7.5; Enzymatic reaction;
methanol
67-56-1

methanol

D-tryptophan
153-94-6

D-tryptophan

Conditions
ConditionsYield
With thionyl chloride for 4h; Heating;100%
With thionyl chloride at 0 - 40℃; for 6h;98%
With thionyl chloride at 40℃; for 4h;97%
D-tryptophan
153-94-6

D-tryptophan

(R)-6-bromotryptophan
496930-10-0

(R)-6-bromotryptophan

Conditions
ConditionsYield
With oxygen; FAD-dependent tryptophan halogenase Thal; sodium bromide In isopropyl alcohol at 25℃; pH=7.4; Enzymatic reaction; chemoselective reaction;100%
With sodium hypophosphate; recombinant phosphite dehydrogenase; recombinant tryptophan C-6 flavin-dependent halogenase tar14 from Streptomyces coelicolor CH999; recombinant tryptophan C-6 flavin-dependent reductase tar15 from Escherichia coli; nicotinamide adenine dinucleotide phosphate; flavin adenine dinucleotide; sodium chloride In aq. buffer at 30℃; pH=7.6; Enzymatic reaction; regiospecific reaction;
With alcohol dehydrogenase from Rhodococcus spp; flavin reductase PrnF from Pseudomonas fluorescens; tryptophan 6-halogenase Thal fromStreptomyces albogriseolus; NAD; oxygen; flavin adenine dinucleotide; sodium bromide In aq. phosphate buffer; isopropyl alcohol at 25℃; pH=7.4; Reagent/catalyst; Enzymatic reaction;
trifluoroacetic acid
76-05-1

trifluoroacetic acid

D-tryptophan
153-94-6

D-tryptophan

C11H11BrN2O2*C2HF3O2

C11H11BrN2O2*C2HF3O2

Conditions
ConditionsYield
Stage #1: D-tryptophan With flavin adenine dinucleotide fully reduced neutral; NAD; oxygen; isopropyl alcohol; sodium bromide In aq. phosphate buffer at 25℃; pH=7.4; Enzymatic reaction;
Stage #2: trifluoroacetic acid In acetonitrile
100%
piperonal
120-57-0

piperonal

D-tryptophan
153-94-6

D-tryptophan

C19H18N2O5

C19H18N2O5

Conditions
ConditionsYield
In acetonitrile at 20℃; Product distribution / selectivity; Inert atmosphere of nitrogen;99.8%
methanol
67-56-1

methanol

D-tryptophan
153-94-6

D-tryptophan

D-Tryptophan methyl ester
4299-70-1, 7303-49-3, 22032-65-1

D-Tryptophan methyl ester

Conditions
ConditionsYield
With sulfuric acid for 2h; Time; Reflux; Large scale;99.4%
Stage #1: methanol; D-tryptophan With thionyl chloride for 18h; Reflux;
Stage #2: With sodium carbonate
93%
With thionyl chloride at 10 - 45℃; for 2h; Large scale;93.6%
D-tryptophan
153-94-6

D-tryptophan

trimellitic Anhydride
552-30-7

trimellitic Anhydride

(R)-2-(1-carboxy-2-(1H-indol-3-yl)ethyl)-1,3-dioxoisoindoline-5-carboxylic acid

(R)-2-(1-carboxy-2-(1H-indol-3-yl)ethyl)-1,3-dioxoisoindoline-5-carboxylic acid

Conditions
ConditionsYield
In diethylene glycol dimethyl ether at 200℃; for 0.166667h; microwave irradiation;99%
D-tryptophan
153-94-6

D-tryptophan

(2R)-2-amino-3-(1H-indol-3-yl)propan-1-ol
154-09-6, 526-53-4, 2899-29-8, 52485-52-6

(2R)-2-amino-3-(1H-indol-3-yl)propan-1-ol

Conditions
ConditionsYield
With lithium aluminium tetrahydride In tetrahydrofuran for 15h; Inert atmosphere; Reflux;98%
With lithium aluminium tetrahydride In tetrahydrofuran at 0℃; Reflux;98%
With dimethyl sulfide borane In tetrahydrofuran Reflux;92%
(R)-1-benzotriazol-1-yl-3,3,3-trifluoro-2-methoxy-2-phenylpropan-1-one
942130-82-7

(R)-1-benzotriazol-1-yl-3,3,3-trifluoro-2-methoxy-2-phenylpropan-1-one

D-tryptophan
153-94-6

D-tryptophan

(R)-3-(1H-indol-3-yl)-2-((R)-3,3,3-trifluoro-2-methoxy-2-phenylpropionylamino)propionic acid

(R)-3-(1H-indol-3-yl)-2-((R)-3,3,3-trifluoro-2-methoxy-2-phenylpropionylamino)propionic acid

Conditions
ConditionsYield
With triethylamine In water; acetonitrile at 20℃; for 12h;98%
succinic acid anhydride
108-30-5

succinic acid anhydride

D-tryptophan
153-94-6

D-tryptophan

(R)-N-[1-carboxy-2-(1H-indol-3-yl)ethyl]succinamic acid

(R)-N-[1-carboxy-2-(1H-indol-3-yl)ethyl]succinamic acid

Conditions
ConditionsYield
In tetrahydrofuran for 40h; Heating;96%
pentan-3-one
96-22-0

pentan-3-one

D-tryptophan
153-94-6

D-tryptophan

1,1-diethyl-2,3,4,9-tetrahydro-1H-β-carboline-3-carboxylic acid

1,1-diethyl-2,3,4,9-tetrahydro-1H-β-carboline-3-carboxylic acid

Conditions
ConditionsYield
With trifluoroacetic acid In dichloromethane at 20℃; Pictet-Spengler reaction;96%
benzaldehyde
100-52-7

benzaldehyde

D-tryptophan
153-94-6

D-tryptophan

N-benzyl-D-tryptophan
888009-83-4

N-benzyl-D-tryptophan

Conditions
ConditionsYield
With sodium cyanoborohydride In methanol95%
With sodium cyanoborohydride In methanol at 20℃; for 24h;
Stage #1: benzaldehyde; D-tryptophan In methanol at 23℃; for 2h;
Stage #2: With sodium cyanoborohydride In methanol at 0℃; for 15h;
benzyl chloroformate
501-53-1

benzyl chloroformate

D-tryptophan
153-94-6

D-tryptophan

N-(benzyloxycarbonyl)-D-tryptophan
2279-15-4

N-(benzyloxycarbonyl)-D-tryptophan

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium carbonate In water; acetone at 30℃; for 3h; pH=8 - 10; Cooling with ice;94%
With sodium hydroxide88%
With sodium hydroxide74%
With sodium hydroxide In water at 0 - 20℃;
Stage #1: D-tryptophan With sodium hydrogencarbonate; sodium carbonate In water; acetonitrile at 0℃; for 0.25h; pH=10 - Ca. 11; Cooling with ice;
Stage #2: benzyl chloroformate In water; acetonitrile at 0 - 20℃; for 3h;
methanol
67-56-1

methanol

toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

D-tryptophan
153-94-6

D-tryptophan

(R)-2-Amino-3-(1H-indol-3-yl)-propionic acid methyl ester; compound with toluene-4-sulfonic acid

(R)-2-Amino-3-(1H-indol-3-yl)-propionic acid methyl ester; compound with toluene-4-sulfonic acid

Conditions
ConditionsYield
With p-toluenesulfonyl chloride at 75℃; for 4h;94%
With p-toluenesulfonyl chloride for 20h; Heating;
1,4,5,8-naphthalenetetracarboxylic dianhydride
81-30-1

1,4,5,8-naphthalenetetracarboxylic dianhydride

D-tryptophan
153-94-6

D-tryptophan

(R)-2-{7-[1-carboxy-2-(1H-indol-3-yl)ethyl]-1,3,6,8-tetraoxo-3,6,7,8-tetrahydro-1H-benzo[lmn][3,8]phenanthrolin-2-yl}-3-(1H-indol-3-yl)propionic acid

(R)-2-{7-[1-carboxy-2-(1H-indol-3-yl)ethyl]-1,3,6,8-tetraoxo-3,6,7,8-tetrahydro-1H-benzo[lmn][3,8]phenanthrolin-2-yl}-3-(1H-indol-3-yl)propionic acid

Conditions
ConditionsYield
With pyridine for 12h; Heating;94%
carbonic acid dimethyl ester
616-38-6

carbonic acid dimethyl ester

D-tryptophan
153-94-6

D-tryptophan

D-Tryptophan methyl ester
4299-70-1, 7303-49-3, 22032-65-1

D-Tryptophan methyl ester

Conditions
ConditionsYield
With sulfuric acid at 92℃; for 18h;94%
S-benzoyl-3-mercaptopropanoyl chloride
67714-30-1

S-benzoyl-3-mercaptopropanoyl chloride

D-tryptophan
153-94-6

D-tryptophan

N2-(S-benzoyl-3-mercaptopropanoyl)-D-tryptophan
78818-49-2

N2-(S-benzoyl-3-mercaptopropanoyl)-D-tryptophan

Conditions
ConditionsYield
With potassium carbonate In water93%
1,2-Cyclohexanedicarboxylic acid-anhydride
85-42-7

1,2-Cyclohexanedicarboxylic acid-anhydride

D-tryptophan
153-94-6

D-tryptophan

(R)-2-(1,3-dioxooctahydroisoindol-2-yl)-3-(1H-indol-3-yl)propionic acid

(R)-2-(1,3-dioxooctahydroisoindol-2-yl)-3-(1H-indol-3-yl)propionic acid

Conditions
ConditionsYield
With pyridine for 12h; Heating;92%
2-nitrobenzyl chloride
610-14-0

2-nitrobenzyl chloride

D-tryptophan
153-94-6

D-tryptophan

(R)-3-(1H-indol-3-yl)-2-(2-nitrobenzamido)propanoic acid
1173180-35-2

(R)-3-(1H-indol-3-yl)-2-(2-nitrobenzamido)propanoic acid

Conditions
ConditionsYield
With sodium hydroxide In tetrahydrofuran; water at 0℃; Ionic liquid;91%
With sodium hydroxide In tetrahydrofuran; water at 0℃; for 2h; Reagent/catalyst;90%
With sodium hydroxide In tetrahydrofuran at 0℃; for 2h;1.59 g
(methylamino)acetonitrile
5616-32-0

(methylamino)acetonitrile

D-tryptophan
153-94-6

D-tryptophan

C14H16N4O

C14H16N4O

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 20℃; for 5h; Solvent; Temperature;91%
allyl alcohol
107-18-6

allyl alcohol

D-tryptophan
153-94-6

D-tryptophan

H-D-Trp-OAll

H-D-Trp-OAll

Conditions
ConditionsYield
With toluene-4-sulfonic acid In toluene at 25 - 95℃;90.3%
With toluene-4-sulfonic acid In toluene at 25 - 95℃;90%
With toluene-4-sulfonic acid In toluene at 25 - 95℃;90.2%
trifluoroacetic anhydride
407-25-0

trifluoroacetic anhydride

D-tryptophan
153-94-6

D-tryptophan

4-(3-indolylmethyl)-2-trifluoromethyl-5(4H)-oxazolone
126689-19-8

4-(3-indolylmethyl)-2-trifluoromethyl-5(4H)-oxazolone

Conditions
ConditionsYield
In diethyl ether at 30℃; for 0.166667h;90%
α-ethyl D-N-carbobenzoxyglutamate
97996-97-9

α-ethyl D-N-carbobenzoxyglutamate

D-tryptophan
153-94-6

D-tryptophan

Cbz-D-Glu(D-Trp-OH)-O-Et
1382326-14-8

Cbz-D-Glu(D-Trp-OH)-O-Et

Conditions
ConditionsYield
Stage #1: α-ethyl D-N-carbobenzoxyglutamate With 1-hydroxy-pyrrolidine-2,5-dione; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 20℃; Cooling with ice-water;
Stage #2: D-tryptophan In N,N-dimethyl-formamide at 20℃; Cooling with ice-water;
Stage #3: With hydrogenchloride In water; N,N-dimethyl-formamide Cooling with ice;
90%
benzyl chloride
100-44-7

benzyl chloride

D-tryptophan
153-94-6

D-tryptophan

D-tryptophan benzyl ester
141595-98-4

D-tryptophan benzyl ester

Conditions
ConditionsYield
With Iron(III) nitrate nonahydrate; ammonia; sodium Reflux;89%
piperonal
120-57-0

piperonal

D-tryptophan
153-94-6

D-tryptophan

(1R,3R)-1,2,3,4-tetrahydro-1-(3,4-methylenedioxyphenyl)-9H-pyrido[3,4-b]indole-3-carboxylic acid
406938-39-4

(1R,3R)-1,2,3,4-tetrahydro-1-(3,4-methylenedioxyphenyl)-9H-pyrido[3,4-b]indole-3-carboxylic acid

Conditions
ConditionsYield
Stage #1: piperonal; D-tryptophan With trifluoroacetic acid at 30 - 40℃; for 25h; Inert atmosphere;
Stage #2: With hydrogenchloride In water at 40 - 50℃; for 17h; Temperature; Inert atmosphere;
88.5%
1-benzyl N-carbobenzoxy-L-glutamate
65706-99-2

1-benzyl N-carbobenzoxy-L-glutamate

D-tryptophan
153-94-6

D-tryptophan

Cbz-D-Glu(D-Trp-OH)-O-Bzl
1382326-04-6

Cbz-D-Glu(D-Trp-OH)-O-Bzl

Conditions
ConditionsYield
Stage #1: 1-benzyl N-carbobenzoxy-L-glutamate With 1-hydroxy-pyrrolidine-2,5-dione; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 20℃; Cooling with ice-water;
Stage #2: D-tryptophan In N,N-dimethyl-formamide at 20℃; for 6h; Cooling with ice-water;
Stage #3: With hydrogenchloride In water; N,N-dimethyl-formamide Product distribution / selectivity; Cooling with ice;
88%
1,8-Naphthalic anhydride
81-84-5

1,8-Naphthalic anhydride

D-tryptophan
153-94-6

D-tryptophan

2-(1,3-dioxo-1H,3H-benzo[de]isoquinolin-2-yl)-3-(1H-indol-3-yl)-propionic acid

2-(1,3-dioxo-1H,3H-benzo[de]isoquinolin-2-yl)-3-(1H-indol-3-yl)-propionic acid

Conditions
ConditionsYield
In dimethyl sulfoxide at 150℃; for 0.5h;87%
2-Phenyl-iso-propyloxycarbonylfluorid
73167-00-7

2-Phenyl-iso-propyloxycarbonylfluorid

D-tryptophan
153-94-6

D-tryptophan

Ppoc-D-Trp
116246-59-4

Ppoc-D-Trp

Conditions
ConditionsYield
With sodium hydroxide; sodium hydrogencarbonate In tetrahydrofuran; diethyl ether at 0℃; for 2h;86%
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

D-tryptophan
153-94-6

D-tryptophan

Boc-D-Trp-OH
5241-64-5

Boc-D-Trp-OH

Conditions
ConditionsYield
With triethylamine In methanol Inert atmosphere;86%
With sodium hydroxide In tetrahydrofuran; water at 0℃;
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