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Cas:153-94-6
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inquiry1. 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
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Items Standard Result Assay (Ursolic acid) 98%min 98.22% ----------------------------------------------------------------
Cas:153-94-6
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inquiryUnique 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
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inquiryWe 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,
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inquiryThe 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
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inquirySichuan 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
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inquiryCHENGDU 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
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inquiryProduct Description Product website: http://www.finerchem.com/pro01en/id/1871.html Product Name D(+)-Tryptophan CAS No. 153-94-6
Cas:153-94-6
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inquiryProduct 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
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inquiryOur 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
Cas:153-94-6
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inquiryWITH 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
Cas:153-94-6
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inquiryOur 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
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inquiry1. 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
Cas:153-94-6
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inquiryAppearance: 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:
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inquiryAppearance:White or yellow crystalline powder Storage:Room temperature Package:25kg/drum Application:Amino acid Transportation:Express/Sea/Air Port:Any port in china
Cas:153-94-6
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inquiry1.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
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
Cas:153-94-6
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Cas:153-94-6
Min.Order:10 Gram
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inquiryPacking: 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
Cas:153-94-6
Min.Order:1 Kilogram
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inquiryOur 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
Cas:153-94-6
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inquiryD(+)-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
Cas:153-94-6
Min.Order:1 Gram
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inquiryHello, 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
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,
Cas:153-94-6
Min.Order:10 Gram
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inquiry1,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
Cas:153-94-6
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inquiryD-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
Conditions | Yield |
---|---|
With benzylamine hydrochloride In water; isopropyl alcohol at 20℃; for 1h; | 95% |
Conditions | Yield |
---|---|
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; |
Conditions | Yield |
---|---|
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
D-tryptophan
Conditions | Yield |
---|---|
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% |
Conditions | Yield |
---|---|
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% |
Conditions | Yield |
---|---|
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
D-tryptophan
Conditions | Yield |
---|---|
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; |
Conditions | Yield |
---|---|
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
D-tryptophan
Conditions | Yield |
---|---|
With sulfuric acid; water |
Conditions | Yield |
---|---|
With methanol; palladium; acetic acid Hydrogenation; |
indole
L-serin
A
2-oxo-propionic acid
B
L-Tryptophan
C
D-tryptophan
Conditions | Yield |
---|---|
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
glycine
A
L-Tryptophan
B
D-tryptophan
Conditions | Yield |
---|---|
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; |
D-tryptophan
Conditions | Yield |
---|---|
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
D-tryptophan
Conditions | Yield |
---|---|
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
Trp
A
L-Tryptophan
B
D-tryptophan
Conditions | Yield |
---|---|
With hydrogenchloride; sodium methylate; nickel(II) nitrate Product distribution; 1.) MeOH, 40 deg C, 24 h, 2.) reflux; |
Conditions | Yield |
---|---|
With base In water Product distribution; other reagent; |
D-tryptophan
Conditions | Yield |
---|---|
With sodium hydroxide; ethanol; water |
D-tryptophan
Conditions | Yield |
---|---|
With hydrogenchloride; water |
A
D-tryptophan
Conditions | Yield |
---|---|
With sodium perchlorate In water at 25.05℃; Equilibrium constant; Further Variations:; pH-values; decomplexation; |
A
D-tryptophan
Conditions | Yield |
---|---|
With sodium perchlorate In water at 25.05℃; Equilibrium constant; Further Variations:; pH-values; decomplexation; |
D-Tryptophan methyl ester
A
methanol
B
D-tryptophan
Conditions | Yield |
---|---|
With 2-(di(2-hydroxyethyl)amino)ethanesulfonic acid; lipase from Bacillus thermocatenulanatus In water at 40℃; pH=7.20; Enzyme kinetics; |
Conditions | Yield |
---|---|
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
D-tryptophan
Conditions | Yield |
---|---|
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
D-tryptophan
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: pancreas-enzyme / arbeiten in wss. Loesung bei pH 7.6 2: H2SO4; water View Scheme |
D-tryptophan
Conditions | Yield |
---|---|
With CO In tetrahydrofuran; hydrogenchloride |
Conditions | Yield |
---|---|
With CO; (PPh3)2PdCl2 In tetrahydrofuran; hydrogenchloride |
Conditions | Yield |
---|---|
With hydrogenchloride; water at 110℃; for 16h; |
D-Alanine
Indole-3-pyruvic acid
A
2-oxo-propionic acid
B
D-tryptophan
Conditions | Yield |
---|---|
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
D-tryptophan
(R)-(+)-tryptophan methyl ester hydrochloride
Conditions | Yield |
---|---|
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
(R)-6-bromotryptophan
Conditions | Yield |
---|---|
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; |
Conditions | Yield |
---|---|
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% |
Conditions | Yield |
---|---|
In acetonitrile at 20℃; Product distribution / selectivity; Inert atmosphere of nitrogen; | 99.8% |
Conditions | Yield |
---|---|
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% |
Conditions | Yield |
---|---|
In diethylene glycol dimethyl ether at 200℃; for 0.166667h; microwave irradiation; | 99% |
D-tryptophan
(2R)-2-amino-3-(1H-indol-3-yl)propan-1-ol
Conditions | Yield |
---|---|
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
D-tryptophan
Conditions | Yield |
---|---|
With triethylamine In water; acetonitrile at 20℃; for 12h; | 98% |
Conditions | Yield |
---|---|
In tetrahydrofuran for 40h; Heating; | 96% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; Pictet-Spengler reaction; | 96% |
Conditions | Yield |
---|---|
With sodium cyanoborohydride In methanol | 95% |
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; |
Conditions | Yield |
---|---|
With sodium hydrogencarbonate; potassium carbonate In water; acetone at 30℃; for 3h; pH=8 - 10; Cooling with ice; | 94% |
With sodium hydroxide | 88% |
With sodium hydroxide | 74% |
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; |
Conditions | Yield |
---|---|
With p-toluenesulfonyl chloride at 75℃; for 4h; | 94% |
With p-toluenesulfonyl chloride for 20h; Heating; |
Conditions | Yield |
---|---|
With pyridine for 12h; Heating; | 94% |
carbonic acid dimethyl ester
D-tryptophan
D-Tryptophan methyl ester
Conditions | Yield |
---|---|
With sulfuric acid at 92℃; for 18h; | 94% |
S-benzoyl-3-mercaptopropanoyl chloride
D-tryptophan
N2-(S-benzoyl-3-mercaptopropanoyl)-D-tryptophan
Conditions | Yield |
---|---|
With potassium carbonate In water | 93% |
Conditions | Yield |
---|---|
With pyridine for 12h; Heating; | 92% |
2-nitrobenzyl chloride
D-tryptophan
(R)-3-(1H-indol-3-yl)-2-(2-nitrobenzamido)propanoic acid
Conditions | Yield |
---|---|
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 |
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 20℃; for 5h; Solvent; Temperature; | 91% |
Conditions | Yield |
---|---|
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
D-tryptophan
4-(3-indolylmethyl)-2-trifluoromethyl-5(4H)-oxazolone
Conditions | Yield |
---|---|
In diethyl ether at 30℃; for 0.166667h; | 90% |
α-ethyl D-N-carbobenzoxyglutamate
D-tryptophan
Cbz-D-Glu(D-Trp-OH)-O-Et
Conditions | Yield |
---|---|
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% |
Conditions | Yield |
---|---|
With Iron(III) nitrate nonahydrate; ammonia; sodium Reflux; | 89% |
piperonal
D-tryptophan
(1R,3R)-1,2,3,4-tetrahydro-1-(3,4-methylenedioxyphenyl)-9H-pyrido[3,4-b]indole-3-carboxylic acid
Conditions | Yield |
---|---|
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
D-tryptophan
Cbz-D-Glu(D-Trp-OH)-O-Bzl
Conditions | Yield |
---|---|
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% |
Conditions | Yield |
---|---|
In dimethyl sulfoxide at 150℃; for 0.5h; | 87% |
Conditions | Yield |
---|---|
With sodium hydroxide; sodium hydrogencarbonate In tetrahydrofuran; diethyl ether at 0℃; for 2h; | 86% |
Conditions | Yield |
---|---|
With triethylamine In methanol Inert atmosphere; | 86% |
With sodium hydroxide In tetrahydrofuran; water at 0℃; |
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