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:158722-22-6
Min.Order:1 Kilogram
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inquiryWelcome 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
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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:158722-22-6
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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:158722-22-6
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
Cas:158722-22-6
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FOB Price: $15.0 / 50.0
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inquiryAdvantages: Hubei XinRunde Chemical Co., Ltd is a renowned pharmaceutical manufacturer. We can offer high quality products at competitive price in quick delivery with 100% custom pass guaranteed. Never stop striving to offer our best service is our
Cas:158722-22-6
Min.Order:10 Gram
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Type:Other
inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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inquiryCompany Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
Cas:158722-22-6
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
Cas:158722-22-6
Min.Order:4 Kilogram
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inquiryZibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi
Cas:158722-22-6
Min.Order:10 Gram
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inquiryTianfu Chemical, built in 2009, is a professional supplier for API materials in China. With 10 years development, we have bulit our own factory and lab to produce a certain of products. And we have established stable business relationships with ma
Cas:158722-22-6
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inquiryProduct name: (4S,5R)-2,4-Diphenyl-4,5-Dihydro-1,3-Oxazole-5-Carboxylic Acid CAS No.:158722-22-6 Molecule Formula:C16H13NO3 Molecule Weight:267.28 Purity: 99.0% Package: 25kg/drum Description:White or off-white powder Manufacture Standards:Ent
Cas:158722-22-6
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inquiryGMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
Cas:158722-22-6
Min.Order:1 Milligram
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Type:Trading Company
inquiryHANGZHOU 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 specializes in exp
Cas:158722-22-6
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Type:Other
inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
Cas:158722-22-6
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FOB Price: $2.0
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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
Cas:158722-22-6
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inquiryProduct Name: (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid Synonyms: (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid CAS: 158…Appearance:Solid powder Storage:Sealed,light and oxygen resistant Package:aluminum foil bag,carton
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Type:Other
inquiryHigh 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
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inquiryOur clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
Cas:158722-22-6
Min.Order:0
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Type:Manufacturers
inquiryTAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp
Cas:158722-22-6
Min.Order:0
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Type:Manufacturers
inquiryPort:Beijing or Guangzhou
Cas:158722-22-6
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Type:Lab/Research institutions
inquiryfactory?direct?sale Application:healing drugs
Cas:158722-22-6
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Type:Lab/Research institutions
inquirygood quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:25kg,50kg,180kg,200kg,250kg,1000kg,customization Application:Pharma;Industry;Agricultural;chemical reaserch Tran
Cas:158722-22-6
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inquiry*stable and better quality products*efficient and meticulous servicesAppearance:Powder Storage:Store in dry, cool and ventilated place Package:1kg/tin 5kg/tin 25kg/carton Application:Pharmaceutical raw materials, making injection powder oral agent Tr
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Type:Trading Company
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:158722-22-6
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:158722-22-6
Min.Order:0
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Type:Other
inquiry1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
Cas:158722-22-6
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryOur Services 1.Certificate Of Analysis (COA) 2.Material Safety Data Sheet (MSDS) 3.Route of synthesis (ROS) 4.Method of Aanlysis (MOA) 5.Nuclear Magnetic Resonance (NMR) 6.Packing pictures and loading video before loading 7.Free Sampl
Cas:158722-22-6
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
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:158722-22-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryXi’an Salus Nutra Inc Established in 2015 and located in Hi-Tech industrial Zone in xi’an city, which is the most advanced area in northwest china . Salus Nutra is a professional company specialized in natural plant extracts, collagen a
Cas:158722-22-6
Min.Order:1 Kilogram
FOB Price: $10.0 / 20.0
Type:Trading Company
inquiry(4S,5R)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydroxide | 96% |
With sodium hydroxide In methanol; water at 20℃; | 86% |
With sodium hydroxide In methanol; water at 20℃; for 5h; | 86% |
With hydrogenchloride; sodium hydroxide | 76% |
With sodium hydroxide In water |
(-)-menthyl (4S,5S)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylate
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Stage #1: (-)-menthyl (4S,5S)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylate With water; potassium carbonate In methanol at 20℃; Stage #2: With hydrogenchloride In water pH=2; | 81% |
(-)-menthyl (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylate
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Stage #1: (-)-menthyl (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylate With water; potassium carbonate In methanol at 20℃; for 5h; Stage #2: With hydrogenchloride In water pH=2; | 79% |
(4S-trans)-4,5-dihydro-2,4-diphenyl-5-vinyloxazoline
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
With ruthenium trichloride; sodium periodate; sodium hydrogencarbonate In tetrachloromethane; water; acetonitrile for 48h; | 78% |
With ruthenium trichloride; sodium periodate; sodium hydrogencarbonate In tetrachloromethane; water; acetonitrile for 48h; Oxidation; degradation; |
(4S-trans)-4,5-dihydro-2,4-diphenyl-5-vinyloxazoline
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydrogencarbonate; ruthenium(III)chloride In tetrachloromethane; water; acetonitrile | 75% |
N-((1S,2S,3R)-3,4-Dihydroxy-2-iodo-1-phenyl-butyl)-benzamide
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
With sodium chlorite; sodium periodate; sodium dihydrogenphosphate 1.) acetone, H2O, RT, 2.) 2-methyl-2-butene, t-BuOH, H2O, RT; Yield given; Multistep reaction; |
(2R,3S)-2,3-dihydroxy-3-phenyl-propionic acid
benzonitrile
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
With sulfuric acid at -10 - 20℃; |
(4S,5R)-[2,4-diphenyl-(5-hydroxymethyl)]-1,3-oxazoline
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
With pyridinium chlorochromate In N,N-dimethyl-formamide for 2h; |
(2R,3S)-3-phenylisoserine hydrochloride
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaOH / H2O View Scheme | |
Multi-step reaction with 2 steps 1: 41 percent / toluene / 8 h / Heating 2: 86 percent / NaOH / methanol; H2O / 20 °C View Scheme |
orthobenzoic acid trimethyl ester
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaOH / H2O View Scheme | |
Multi-step reaction with 2 steps 1: 41 percent / toluene / 8 h / Heating 2: 86 percent / NaOH / methanol; H2O / 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: 41 percent / toluene / 8 h / Heating 2: 86 percent / NaOH / methanol; H2O / 20 °C View Scheme |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: imidazole / dimethylformamide / 14 h 2: 99 percent / Deoxo-Fluor(R) / CH2Cl2 / 0.5 h / -20 °C 3: 94 percent / tetrabutylammonium fluoride / tetrahydrofuran / 1 h 4: pyridinium chlorochromate / dimethylformamide / 2 h View Scheme |
(4S,5R)-5-({[1-(tert-butyl)-1,1-diphenylsilyl]-oxy}-methyl)-2,4-diphenyl-1,3-oxazoline
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 94 percent / tetrabutylammonium fluoride / tetrahydrofuran / 1 h 2: pyridinium chlorochromate / dimethylformamide / 2 h View Scheme |
(S)-N-1-(3-[(1-tert-butyl)-1,1-diphenylsilyl]oxy-2-oxo-1-phenylpropyl)benzamide
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 99 percent / L-Selectride / tetrahydrofuran / 4 h / 0 °C 2: 99 percent / Deoxo-Fluor(R) / CH2Cl2 / 0.5 h / -20 °C 3: 94 percent / tetrabutylammonium fluoride / tetrahydrofuran / 1 h 4: pyridinium chlorochromate / dimethylformamide / 2 h View Scheme |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 84 percent / CrO3; H2SO4; H2O / acetone / 0.5 h 2: 99 percent / L-Selectride / tetrahydrofuran / 4 h / 0 °C 3: 99 percent / Deoxo-Fluor(R) / CH2Cl2 / 0.5 h / -20 °C 4: 94 percent / tetrabutylammonium fluoride / tetrahydrofuran / 1 h 5: pyridinium chlorochromate / dimethylformamide / 2 h View Scheme |
(1S,2S)-N-1-(3-{[(1-tert-butyl)-1,1-diphenylsilyl]oxy}-2-hydroxy-1-phenylpropyl)benzamide
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 99 percent / Deoxo-Fluor(R) / CH2Cl2 / 0.5 h / -20 °C 2: 94 percent / tetrabutylammonium fluoride / tetrahydrofuran / 1 h 3: pyridinium chlorochromate / dimethylformamide / 2 h View Scheme |
(2R,3S)-2-hydroxy-3-amino-3-phenylpropionic acid
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 41 percent / toluene / 8 h / Heating 2: 86 percent / NaOH / methanol; H2O / 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: orthobenzoic acid trimethyl ester / toluene / 8 h / 110 °C 2: sodium hydroxide / methanol; water / 5 h / 20 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaHCO3 / methanol / 0 °C 2: 1.) NaIO4, 2.) NaClO2, NaH2PO4 / 1.) acetone, H2O, RT, 2.) 2-methyl-2-butene, t-BuOH, H2O, RT View Scheme |
(2S,3E)-4-phenylbut-3-ene-1,2-diol
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 1.) DBU, 2.) IBr, K2CO3 / 1.) CH3CN, -30 deg C, 2.) CH3CN, -30 to -10 deg C 2: 6N HCl / methanol / Ambient temperature 3: NaHCO3 / methanol / 0 °C 4: 1.) NaIO4, 2.) NaClO2, NaH2PO4 / 1.) acetone, H2O, RT, 2.) 2-methyl-2-butene, t-BuOH, H2O, RT View Scheme |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaHCO3 / methanol / 0 °C 2: 1.) NaIO4, 2.) NaClO2, NaH2PO4 / 1.) acetone, H2O, RT, 2.) 2-methyl-2-butene, t-BuOH, H2O, RT View Scheme |
2,2,2-Trichloro-acetimidic acid (4S,5S,6R)-5-iodo-4-phenyl-2-trichloromethyl-5,6-dihydro-4H-[1,3]oxazin-6-ylmethyl ester
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 6N HCl / methanol / Ambient temperature 2: NaHCO3 / methanol / 0 °C 3: 1.) NaIO4, 2.) NaClO2, NaH2PO4 / 1.) acetone, H2O, RT, 2.) 2-methyl-2-butene, t-BuOH, H2O, RT View Scheme |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
With hydrogenchloride; potassium carbonate In methanol; water |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: boron trifluoride diethyl etherate / dichloromethane / 4 h / -78 °C / Inert atmosphere 2.1: water; potassium carbonate / methanol / 5 h / 20 °C 2.2: pH 2 View Scheme |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: boron trifluoride diethyl etherate / dichloromethane / 4 h / -78 °C / Inert atmosphere 2.1: water; potassium carbonate / methanol / 20 °C 2.2: pH 2 View Scheme |
diazomethane
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
(4S,5R)-2,4-diphenyl-2-oxazoline-5-carboxylic acid methyl ester
Conditions | Yield |
---|---|
In diethyl ether | 100% |
In diethyl ether for 0.166667h; Methylation; esterification; | |
In diethyl ether; N,N-dimethyl-formamide |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
N-methylmorpholine hydrochloride
Conditions | Yield |
---|---|
In tetrahydrofuran for 12h; | 100% |
4-methyl-morpholine
2-chloro-4,6-dimethoxy-1 ,3,5-triazine
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
N-methylmorpholine hydrochloride
Conditions | Yield |
---|---|
Stage #1: 4-methyl-morpholine; 2-chloro-4,6-dimethoxy-1 ,3,5-triazine In tetrahydrofuran at 0 - 5℃; for 0.5h; Stage #2: (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid In tetrahydrofuran at 0 - 20℃; for 12h; | 100% |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
6,7-dehydro-baccatin III
C47H47NO12
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In toluene Ambient temperature; | 97% |
7-(triethylsilyl)baccatin III
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
7-(triethylsilyl)-13-O-[((4S,5R)-2,4-diphenyl-4,5-dihydrooxazol-5-yl)carbonyl]baccatin
Conditions | Yield |
---|---|
With 4-pyrrolidin-1-ylpyridine; dicyclohexyl-carbodiimide In toluene for 0.5h; Ambient temperature; | 95% |
With 4-pyrrolidin-1-ylpyridine; dicyclohexyl-carbodiimide In toluene at 0 - 20℃; for 1.16667h; | 93% |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
15-O-t-butyldimethylsilyl-lactarorufin B
(4S,5R)-2,4-diphenyl-4,5-dihydro-oxazol-5-carboxylic acid (15-O-t-butyldimethylsilyl-lactarorufin B)-8-yl ester
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; | 95% |
7-triethylsilyl-1-deoxybaccatin III
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
7-triethylsilyl-13-[(5R)-2,4-diphenyl-2,5-dihydrooxazole-5-carboxylic]-1-deoxybaccatin III
Conditions | Yield |
---|---|
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In toluene at 50℃; | 94% |
7,10-di-(2,2,2-trichloroethyloxycarbonyl)-10-deacetylbaccatin III
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
C51H49Cl6NO16
Conditions | Yield |
---|---|
With 4-pyrrolidin-1-ylpyridine; dicyclohexyl-carbodiimide In toluene at 20℃; for 2h; | 92% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In (2)H8-toluene at 20℃; for 0.0333333h; | 90% |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
Stage #1: 13-oxo-14β-hydroxy-7-O-triethylsilyl-9,10-O-isopropylidene-1-deoxybaccatin VI; (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid With dmap In toluene at 20℃; for 0.166667h; Stage #2: With dicyclohexyl-carbodiimide In toluene | 90% |
Conditions | Yield |
---|---|
Stage #1: C38H56O12Si; (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid With dmap; 1,3-Dicyclohexylurea In toluene at 20℃; for 3h; Stage #2: With acetic acid In toluene for 0.75h; | 86% |
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In toluene at 20℃; | 83% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In toluene for 2h; | 80% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In toluene for 1.5h; | 79% |
15-dihydroatractyligenin methyl ester
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
C36H39NO6
Conditions | Yield |
---|---|
Stage #1: (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 0.25h; Stage #2: 15-dihydroatractyligenin methyl ester In dichloromethane at 20℃; for 3h; Further stages.; | 73% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 3h; | 72% |
Conditions | Yield |
---|---|
Stage #1: C38H54O10Si; (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid With dmap; dicyclohexyl-carbodiimide In toluene at 20℃; for 0.0333333h; Stage #2: With hydrogenchloride In methanol; water at 20 - 60℃; for 4h; pH=3 - 4; | 42% |
Conditions | Yield |
---|---|
Stage #1: C40H60O11Si; (4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid With dmap; dicyclohexyl-carbodiimide In toluene at 20℃; for 0.0333333h; Stage #2: With hydrogenchloride In methanol; water at 20 - 60℃; for 4h; pH=3 - 4; | 33% |
diazomethane
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
(4R,5R)-2,4-Diphenyl-4,5-dihydro-oxazole-5-carboxylic acid methyl ester
Conditions | Yield |
---|---|
In methanol at 0℃; Yield given; |
furanol
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
(4S,5R)-2,4-Diphenyl-4,5-dihydro-oxazole-5-carboxylic acid (4S,4aR)-6,6,8-trimethyl-4,4a,5,6,7,9-hexahydro-2-oxa-cyclopenta[f]azulen-4-yl ester
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; | |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; |
furandiol
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
(4S,5R)-2,4-Diphenyl-4,5-dihydro-oxazole-5-carboxylic acid (4S,4aR,7aS,8S)-8-hydroxy-6,6,8-trimethyl-4,4a,5,6,7,7a,8,9-octahydro-2-oxa-cyclopenta[f]azulen-4-yl ester
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; | |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; |
3-O-ethylfurandiol
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
(4S,5R)-2,4-Diphenyl-4,5-dihydro-oxazole-5-carboxylic acid (4S,4aR,7aS,8S)-8-ethoxy-6,6,8-trimethyl-4,4a,5,6,7,7a,8,9-octahydro-2-oxa-cyclopenta[f]azulen-4-yl ester
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; | |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; |
4,4α,5,6,7,7α,8,9-octahydro-4,8-dihydroxy-6,6,8-trimethyl-(4S,4αR,7αS,8S)-azuleno[5,6-c]furan-1(3H)-one
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
(4S,5R)-2,4-Diphenyl-4,5-dihydro-oxazole-5-carboxylic acid (4S,4aR,7aS,8S)-8-hydroxy-6,6,8-trimethyl-1-oxo-1,3,4,4a,5,6,7,7a,8,9-decahydro-2-oxa-cyclopenta[f]azulen-4-yl ester
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 5h; | |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; |
anhydro deconjugated lactarorufin A
(4S,5R)-2,4-diphenyl-4,5-dihydrooxazole-5-carboxylic acid
(4S,5R)-2,4-Diphenyl-4,5-dihydro-oxazole-5-carboxylic acid (4S,4aR)-6,6,8-trimethyl-1-oxo-1,3,4,4a,5,6,7,9-octahydro-2-oxa-cyclopenta[f]azulen-4-yl ester
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; |
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