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
Cas:59554-14-2
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur 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
Cas:59554-14-2
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryTIANFUCHEM--59554-14-2--3-AMINO-2-HYDROXY-4-PHENYLBUTYRIC ACID factory price Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had established s
Cas:59554-14-2
Min.Order:1 Metric Ton
FOB Price: $2000.0
Type:Lab/Research institutions
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:59554-14-2
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiry1.In No Less 10 years exporting experience. you 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 Specializ
Cas:59554-14-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Manufacturers
inquiryJ&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
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
Cas:59554-14-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryShandong 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
Cas:59554-14-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquirySAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in custom synthe
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
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
Cas:59554-14-2
Min.Order:0
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Type:Lab/Research institutions
inquiryhigh 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
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
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Manufacturers
inquiryOur clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Manufacturers
inquiryOur own factory produces direct sales with absolute price advantage Application:Pharmaceutical industry Transportation:By sea Port:Shanghai/tianjin
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe are committed to providing our customers with the best products and services at the most competitive prices.Appearance:white to light yellow crystal powder Storage:Room temperature with sealed well Package:according to the clients requirement Appl
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Trading Company
inquiryAHPAAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:pharmaceutical intermediate Transportation:by air, by sea, by express
good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:250mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any po
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Trading Company
inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Other
inquiryQuality assurance, stable process and affordable priceAppearance:detailed see specifications Storage:enquiry Package:according to the clients requirement Application:Pharmaceutical intermediates Transportation:Normal Port:chengdu
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Trading Company
inquirybulk?production Application:Pharmaceutical intermediates
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Trading Company
inquiryBest Seller, High Quality, Competitive Price, Fast Delivery, Quick ResponseAppearance:powder, or liquid Storage:Stored in room temperature, ventilated place Package:Bottle, barrel, cargo, container, etc. Application:Pharmaceuticals, intermediates, AP
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Trading Company
inquiryOur mission is to provide high-quality and innovative products to our customers. By offering a broad range of products, custom synthesis and personalized services, Bide can help scientists speeding up their research in the chemical and pharmaceutical
Cas:59554-14-2
Min.Order:0
Negotiable
Type:Other
inquiryChangzhou Extraordinary Pharmatech co., LTD. As a leading chemical manufacturer and supplier in China.DAS authentication is passed.We can provide the popular precursor chemicals, we have our own strong R & D team, have our own laboratories and fa
Cas:59554-14-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1 Company Introduction NanJing XiZe Biotechnology is a leading manufacturer and supplier of chemicals in China. We develop, produce and distribute high quality pharmaceuticals, impurities, intermediates, special pharmaceutical and intermediates.
Cas:59554-14-2
Min.Order:1 Gram
FOB Price: $1.0
Type:Lab/Research institutions
inquiryWatson International Ltd' has a very strong R&D and technical capacity supported by FCAD's platform. The subsidiaries under FCAD Group have accumulated much know-how of different fine chemical branches. For example, Apnoke Scientific L
Betterbiochem is specialized in APIs, pharmaceutical intermediates & fine chemicals. 1. The best quality, competitive price. 2. The best service before or after shipment. 3. Rich experience in export operation. 4. Rich experience in
Cas:59554-14-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry(2S,3R)-3-Amino-2-hydroxy-4-phenyl-butyric acid isopropyl ester
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With hydrogenchloride; ion exchange resin (H+) 1.) 4 h, 100 deg C; | 85% |
(2S,3R)-2-hydroxy-4-phenyl-3-(tosylamino)butanoic acid
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With Na-naphthalide In 1,2-dimethoxyethane at -78℃; for 0.5h; | 82% |
(2S,3R)-3-benzyloxycarbonylamino-2-hydroxy-4-phenyl-butanoic acid
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With hydrogen; palladium |
methyl (4R,5S)-2-oxo-4-phenylmethyl-1,3-oxazolidine-5-carboxylate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With lithium hydroxide In methanol; water |
methyl (2S,3R)-3-amino-2-hydroxy-4-phenylbutanoate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With hydrogenchloride |
(2S,3R)-2-O-benzyl-4-phenyl-3-[(9-phenyl-9-fluorenyl)-amino]-phenylbutanoic acid
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In methanol at 70℃; for 12h; |
(2S,3R)-3-azido-2-hydroxy-4-phenylbutanoic acid
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With sodium tetrahydroborate; copper(II) nitrate In water at 0℃; for 0.5h; |
(4S,5R)-4,5-dihydro-2-phenyl-4-carboethoxy-5-benzyl-1,3-oxazole
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With hydrogenchloride In ethanol; water for 8h; Heating; |
ethyl (2R,3S)-4-phenyl-2,3-oxiranebutanoate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 78 percent / BF3*Et2O / 0 - 20 °C 2: hydrochloric acid / H2O; ethanol / 8 h / Heating View Scheme |
ethyl 3-oxo-4-phenylbutyrate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 92 percent / sulfuryl chloride / CHCl3 / 20 °C 2: 82 percent / Escherichia coli BL21(DE3)(pIK4) overexpressing reductase; glucose; air / KPi buffer; XAD-4 resin / 24 h / 30 °C / pH 5.6 3: 99 percent / potassium carbonate / H2O; dimethylformamide / 5 h / 20 °C 4: 78 percent / BF3*Et2O / 0 - 20 °C 5: hydrochloric acid / H2O; ethanol / 8 h / Heating View Scheme |
ethyl 2-chloro-3-oxo-4-phenylbutyrate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 82 percent / Escherichia coli BL21(DE3)(pIK4) overexpressing reductase; glucose; air / KPi buffer; XAD-4 resin / 24 h / 30 °C / pH 5.6 2: 99 percent / potassium carbonate / H2O; dimethylformamide / 5 h / 20 °C 3: 78 percent / BF3*Et2O / 0 - 20 °C 4: hydrochloric acid / H2O; ethanol / 8 h / Heating View Scheme |
ethyl (2R,3S)-2-chloro-3-hydroxy-4-phenylbutyrate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 99 percent / potassium carbonate / H2O; dimethylformamide / 5 h / 20 °C 2: 78 percent / BF3*Et2O / 0 - 20 °C 3: hydrochloric acid / H2O; ethanol / 8 h / Heating View Scheme |
(Z)-4-phenylbut-2-en-1-ol
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: periodic acid; RuCl3 2: NaN3 / Cu(NO3)2 / H2O / 1.5 h / 65 °C 3: NaBH4 / Cu(NO3)2 / H2O / 0.5 h / 0 °C View Scheme |
(2R,3S)-2-Hydroxymethyl-3-phenylmethyloxirane
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: periodic acid; RuCl3 2: NaN3 / Cu(NO3)2 / H2O / 1.5 h / 65 °C 3: NaBH4 / Cu(NO3)2 / H2O / 0.5 h / 0 °C View Scheme |
(2S,3S)-3-Benzyl-oxirane-2-carboxylic acid
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaN3 / Cu(NO3)2 / H2O / 1.5 h / 65 °C 2: NaBH4 / Cu(NO3)2 / H2O / 0.5 h / 0 °C View Scheme |
methyl (2S,3R)-2-methoxy-4-phenyl-3-<(R)-1-phenylethylamino>butanoate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 81 percent / BBr3 / CH2Cl2 / 2 h / -78 °C 2: 79 percent / H2 / Pd/C / methanol / 15 h / Ambient temperature 3: 2 N aq. HCl View Scheme |
methyl (2S,3R)-2-hydroxy-4-phenyl-3-<(R)-1-phenylethylamino>butanoate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 79 percent / H2 / Pd/C / methanol / 15 h / Ambient temperature 2: 2 N aq. HCl View Scheme |
ethyl (2S,3R)-2-hydroxy-4-phenyl-3-(tosylamino)butanoate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 84 percent / K2CO3 / methanol; H2O / 24 h / Ambient temperature 2: 82 percent / Na-naphthalide / 1,2-dimethoxy-ethane / 0.5 h / -78 °C View Scheme |
(4R,5S)-5-benzyl-4-(hydroxymethyl)-1,3-oxazolidin-2-one
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: 2N LiOH / methanol; H2O View Scheme |
N-<(benzyloxy)carbonyl>-(2R)-amino-1-phenylbut-3-ene
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 95 percent / KH / dimethylformamide; benzene 2: 80 percent / I2 3: 1.) AgOAc, 2.) 1N NaOH / 1.) DMF, AcOH, 2.)MeOH, H2O 4: 82 percent / Na / NH3 6: 2N LiOH / methanol; H2O View Scheme |
(4R,5S)-3,4-Dibenzyl-5-hydroxymethyl-oxazolidin-2-one
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 82 percent / Na / NH3 3: 2N LiOH / methanol; H2O View Scheme |
Z-D-phenylalanine ethyl ester
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 1.) DIBAH, 2.) KH / 1.) toluene, 2.) toluene and THF 2: 95 percent / KH / dimethylformamide; benzene 3: 80 percent / I2 4: 1.) AgOAc, 2.) 1N NaOH / 1.) DMF, AcOH, 2.)MeOH, H2O 5: 82 percent / Na / NH3 7: 2N LiOH / methanol; H2O View Scheme |
Benzyl-((R)-1-benzyl-allyl)-carbamic acid benzyl ester
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 80 percent / I2 2: 1.) AgOAc, 2.) 1N NaOH / 1.) DMF, AcOH, 2.)MeOH, H2O 3: 82 percent / Na / NH3 5: 2N LiOH / methanol; H2O View Scheme |
(4R,5S)-3,4-Dibenzyl-5-iodomethyl-oxazolidin-2-one
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 1.) AgOAc, 2.) 1N NaOH / 1.) DMF, AcOH, 2.)MeOH, H2O 2: 82 percent / Na / NH3 4: 2N LiOH / methanol; H2O View Scheme |
(S)-Methyl mandelate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 93 percent / ImH / dimethylformamide / Ambient temperature 2: 80 percent / DIBAL / diethyl ether; hexane / 0.33 h / -78 °C 3: 100 percent / anhyd. MgSO4 / toluene / 0.83 h / 0 °C 4: NEt3 / CH2Cl2 / Ambient temperature 5: 70 percent / HCl 6: 93 percent / pyridine / CH2Cl2 / 0.17 h / 0 °C 7: 92 percent / H2 / 10percent Pd/C / ethyl acetate / Ambient temperature 8: 85 percent / 1.) 6 M HCl, 2.) ion exchange resin (H+) / 1.) 4 h, 100 deg C View Scheme |
(2S)-2-(tert-butyldimethylsilyloxy)-2-phenylacetaldehyde
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 100 percent / anhyd. MgSO4 / toluene / 0.83 h / 0 °C 2: NEt3 / CH2Cl2 / Ambient temperature 3: 70 percent / HCl 4: 93 percent / pyridine / CH2Cl2 / 0.17 h / 0 °C 5: 92 percent / H2 / 10percent Pd/C / ethyl acetate / Ambient temperature 6: 85 percent / 1.) 6 M HCl, 2.) ion exchange resin (H+) / 1.) 4 h, 100 deg C View Scheme |
Methyl (S)-(+)-α-<<(1,1-dimethylethyl)dimethylsilyl>oxy>-α-phenylacetate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 80 percent / DIBAL / diethyl ether; hexane / 0.33 h / -78 °C 2: 100 percent / anhyd. MgSO4 / toluene / 0.83 h / 0 °C 3: NEt3 / CH2Cl2 / Ambient temperature 4: 70 percent / HCl 5: 93 percent / pyridine / CH2Cl2 / 0.17 h / 0 °C 6: 92 percent / H2 / 10percent Pd/C / ethyl acetate / Ambient temperature 7: 85 percent / 1.) 6 M HCl, 2.) ion exchange resin (H+) / 1.) 4 h, 100 deg C View Scheme |
(2S,3R,4S)-3-Amino-2-benzyloxy-4-hydroxy-4-phenyl-butyric acid isopropyl ester
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 93 percent / pyridine / CH2Cl2 / 0.17 h / 0 °C 2: 92 percent / H2 / 10percent Pd/C / ethyl acetate / Ambient temperature 3: 85 percent / 1.) 6 M HCl, 2.) ion exchange resin (H+) / 1.) 4 h, 100 deg C View Scheme |
[Bis-(4-methoxy-phenyl)-methyl]-[(S)-2-(tert-butyl-dimethyl-silanyloxy)-2-phenyl-eth-(E)-ylidene]-amine
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: NEt3 / CH2Cl2 / Ambient temperature 2: 70 percent / HCl 3: 93 percent / pyridine / CH2Cl2 / 0.17 h / 0 °C 4: 92 percent / H2 / 10percent Pd/C / ethyl acetate / Ambient temperature 5: 85 percent / 1.) 6 M HCl, 2.) ion exchange resin (H+) / 1.) 4 h, 100 deg C View Scheme |
methanol
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With chloro-trimethyl-silane Heating; | 100% |
di-tert-butyl dicarbonate
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
(2S,3R)-3-[(tert-butoxycarbonyl) amino]-2-hydroxy-4-phenyl-butanoic acid
Conditions | Yield |
---|---|
With potassium carbonate In tetrahydrofuran; water at 0 - 20℃; for 1h; | 100% |
With sodium hydroxide In tetrahydrofuran; water at 0 - 20℃; for 24h; | 99% |
With triethylamine In tetrahydrofuran; water at 10 - 25℃; Cooling with ice; | 81% |
(fluorenylmethoxy)carbonyl chloride
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
With potassium carbonate In tetrahydrofuran; water at 0 - 20℃; for 1h; | 100% |
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
benzyl chloroformate
(2S,3R)-3-benzyloxycarbonylamino-2-hydroxy-4-phenyl-butanoic acid
Conditions | Yield |
---|---|
With sodium hydroxide In tetrahydrofuran at 20℃; for 6h; Cooling with ice; | 64% |
With sodium hydroxide In diethyl ether; water Yield given; |
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
(2S,3R)-3-[(tert-butoxycarbonyl) amino]-2-hydroxy-4-phenyl-butanoic acid
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 100 percent / Me3SiCl / Heating 2: 1-(3-(dimethylamino)propyl)-3-ethylcarbodiimide hydrochloride, 1-hydroxybenzotriazole, Et3N / CH2Cl2 / 18 h / 23 °C 3: aq. NaOH / methanol / 2 h / 25 °C View Scheme |
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 100 percent / Me3SiCl / Heating 2: 1-(3-(dimethylamino)propyl)-3-ethylcarbodiimide hydrochloride, 1-hydroxybenzotriazole, Et3N / CH2Cl2 / 18 h / 23 °C View Scheme |
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 100 percent / Me3SiCl / Heating 2: 1-(3-(dimethylamino)propyl)-3-ethylcarbodiimide hydrochloride, 1-hydroxybenzotriazole, Et3N / CH2Cl2 / 18 h / 23 °C 3: aq. NaOH / methanol / 2 h / 25 °C 4: 1-(3-(dimethylamino)propyl)-3-ethylcarbodiimide hydrochloride, 1-hydroxybenzotriazole, Et3N / dimethylformamide / 18 h / 23 °C View Scheme |
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
benzyl N-[(2S,3R)-3-(N-benzyloxycarbonyl)amino-2-hydroxy-4-phenylbutanoyl]-L-leucinate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1N NaOH / diethyl ether; H2O 2: 95 percent / DCC, HOBt, Et3N / CH2Cl2; tetrahydrofuran View Scheme |
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid
bestatin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 1N NaOH / diethyl ether; H2O 2: 95 percent / DCC, HOBt, Et3N / CH2Cl2; tetrahydrofuran 3: H2 / Pd black / H2O; methanol View Scheme |
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