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:143-62-4
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiry18-year experience in Phytochemicals Each product has passed very strict tests (NMR\MS\HPLC) Agents in 13 countries Certified by ISO 9001:2008 quality management system Leader Supplier of Botanical Reference Materials in China
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
Cas:143-62-4
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
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
Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
Cas:143-62-4
Min.Order:1 Kilogram
FOB Price: $1.0
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:143-62-4
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
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
Cas:143-62-4
Min.Order:10 Kilogram
Negotiable
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:143-62-4
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Cas:143-62-4
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s
Cas:143-62-4
Min.Order:1 Kilogram
FOB Price: $30.0 / 50.0
Type:Lab/Research institutions
inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
J&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:143-62-4
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:143-62-4
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
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,
factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:143-62-4
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
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
1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
Lower 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
Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment . Application:Herbal extr
Cas:143-62-4
Min.Order:0
Negotiable
Type:Trading Company
inquiryAcmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:143-62-4
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
We are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for
Supply top quality products with a reasonable price Application:api
Card-20(22)-enolide,3,14-dihydroxy-, (3b,5b)- cas 143-62-4Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Cas:143-62-4
Min.Order:0
Negotiable
Type:Other
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Hangzhou ZeErRui Chemical Co., Ltd. is focused on customization, research and development and production of APIs and advanced intermediates, which can effectively compensate for the deficiencies of traditional CRO and CMO. Priority of high-tech barri
DIGITOXIGENINAppearance:as detailed Storage:Room temperature Package:as required Application:143-62-4 Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to airport) or by sea LCL/FCL for large amount.
4-[(3S,5R,8R,9S,10S,13R,14S,17R)-3-(tert-Butyl-dimethyl-silanyloxy)-14-hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl]-5H-furan-2-one
(+)-digitoxigenin
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In methanol for 24h; Ambient temperature; | 97% |
With sulfuric acid In methanol; water for 1h; Heating; | 95% |
Conditions | Yield |
---|---|
With sulfuric acid In methanol at 0℃; for 5h; | 95% |
With toluene-4-sulfonic acid In methanol at 20℃; | 79% |
With hydrogenchloride; ethanol; water |
Conditions | Yield |
---|---|
With pyridinium p-toluenesulfonate In ethanol at 60℃; for 1h; | 85% |
(Digitoxigenin-3-yl)-4-O-acetyl-2,3,6-tridesoxy-α-L-erythro-hex-2-enopyranosid
(+)-digitoxigenin
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In ethanol for 2h; Product distribution; | 69% |
Conditions | Yield |
---|---|
Stage #1: 3β,14-dihydroxy-17β-(furan-3-yl)-5β,14β-androstane With oxygen; rose bengal; N-ethyl-N,N-diisopropylamine In dichloromethane at -78℃; Irradiation; Stage #2: With sodium tetrahydroborate; water In dichloromethane at 20℃; Further stages.; | 61% |
3β-O-(β-D-digitalosyl)-14-hydroxy-5β,14β-card-20(22)-enolide
A
14-dehydrodigitoxigenin 3-O-β-D-digitaloside
B
3β-hydroxy-5β-carda-14,20(22)-dienolide
C
(+)-digitoxigenin
Conditions | Yield |
---|---|
at 245℃; other temp., other substrates; | A 4% B 2% C 6% |
3β-O-(β-D-diginosyl)-14-hydroxy-5β,14β-card-20(22)-enolide
(+)-digitoxigenin
Conditions | Yield |
---|---|
With methanol; sulfuric acid; water |
3β-O-(β-D-digitalosyl)-14-hydroxy-5β,14β-card-20(22)-enolide
A
14-dehydrodigitoxigenin 3-O-β-D-digitaloside
B
6-deoxy-3-O-methyl-D-galactopyranose
C
3β-hydroxy-5β-carda-14,20(22)-dienolide
D
(+)-digitoxigenin
Conditions | Yield |
---|---|
With water In 1,4-dioxane at 140℃; for 8h; | A 17 mg B 11 mg C 8 mg D 23 mg |
With water In 1,4-dioxane at 140℃; for 8h; other cardenolide and flavonoid glycosides; | A 17 mg B 11 mg C 8 mg D 23 mg |
digitoxin
(+)-digitoxigenin
Conditions | Yield |
---|---|
With sulfuric acid In methanol at 20℃; for 4h; | 4 g |
Digitoxigenin-3β-O-α-L-arabinofuranosid
A
L-arabinose
B
(+)-digitoxigenin
Conditions | Yield |
---|---|
With phosphate buffer In water; dimethyl sulfoxide at 37℃; for 0.5h; 1 IE α-L-arabinofuranosidase (Aspergillus niger K 1), enzymatic cleavage; |
digitoxin
A
digitoxigen O-[2',6'-dideoxy-β-D-ribo-hexopyranosyl]-(1->4)-(2,6-dideoxy-β-D-ribo-hexopyranoside)
B
evatromonoside
C
(+)-digitoxigenin
Conditions | Yield |
---|---|
In propan-1-ol at 125℃; for 1.16667h; | |
at 275℃; | |
at 275℃; |
digitoxin
A
digitoxigen O-[2',6'-dideoxy-β-D-ribo-hexopyranosyl]-(1->4)-(2,6-dideoxy-β-D-ribo-hexopyranoside)
B
β-D-digitoxopyranose
C
evatromonoside
D
(+)-digitoxigenin
Conditions | Yield |
---|---|
With water In 1,4-dioxane at 100℃; for 35h; Further byproducts given; | A 41 mg B n/a C 33 mg D 80 mg |
digitoxin
A
digitoxigen O-[2',6'-dideoxy-β-D-ribo-hexopyranosyl]-(1->4)-(2,6-dideoxy-β-D-ribo-hexopyranoside)
B
β-D-digitoxosyl-(1<*>4)-β-D-digitoxose
C
evatromonoside
D
(+)-digitoxigenin
Conditions | Yield |
---|---|
With water In 1,4-dioxane at 100℃; for 35h; Further byproducts given; | A 41 mg B n/a C 33 mg D 80 mg |
14-hydroxy-3β-(tetra-O-acetyl-lin-tri[1β=>4]-D-ribo-2,6-dideoxy-hexopyranosyloxy)-5β,14β-card-20(22)-enolide
A
3β-hydroxy-5β-carda-14,20(22)-dienolide
B
(+)-digitoxigenin
Conditions | Yield |
---|---|
With hydrogenchloride In methanol at 50℃; for 0.5h; Mechanism; | A n/a B 15 mg |
Conditions | Yield |
---|---|
With 21-hydroxy-malonyltransferase enzyme; Hepes-KOH buffer In dimethyl sulfoxide at 90℃; for 1h; |
Conditions | Yield |
---|---|
at 30℃; Rate constant; Hydrolysis; |
(+)-digitoxigenin
Conditions | Yield |
---|---|
With ethanol; sulfuric acid; water |
(+)-digitoxigenin
Conditions | Yield |
---|---|
With hydrogenchloride; water; acetone |
(+)-digitoxigenin
Conditions | Yield |
---|---|
With hydrogenchloride; ethanol; water |
digitoxigen (β-D-glucopyranosyl)-(1→4)-(2,6-dideoxy-β-D-ribohexopyranosyl)-(1→4)-(2,6-dideoxy-β-D-ribohexopyranosyl)-(1→4)-2,6-dideoxy-β-D-ribohexopyranoside
A
D-digitxose
B
(+)-digitoxigenin
Digitoxigenin 3-O-bisdigitoxosideacetyldigilanidobioside, or lanatoside A
A
D-digitxose
B
(+)-digitoxigenin
Conditions | Yield |
---|---|
at 40℃; anschliessendes Behandeln mit verd. wss. Schwefelsaeure; |
Digitoxigenin 3-O-bisdigitoxosideacetyldigilanidobioside, or lanatoside A
A
D-digitxose
B
(+)-digitoxigenin
Conditions | Yield |
---|---|
anschliessendes Behandeln mit verd. wss. Salzsaeure; |
Digitoxigenin 3-O-bisdigitoxosideacetyldigilanidobioside, or lanatoside A
(+)-digitoxigenin
Conditions | Yield |
---|---|
With water |
C27H36OSi
(+)-digitoxigenin
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1.1: 63 percent / K2CO3; org. peroxide / benzene / 20 °C 2.1: t-BuLi; lithium 2-thienylcyanocuprate / diethyl ether; tetrahydrofuran / -78 - -10 °C 2.2: 91 percent / diethyl ether; tetrahydrofuran / -78 - -30 °C 3.1: 99 percent / aq. TsOH / acetone / Heating 4.1: 82 percent / Cs2CO3 / acetonitrile / Heating 5.1: DIBAL-H / CH2Cl2 / -78 °C 5.2: KH; CS2; MeI / tetrahydrofuran / 20 °C 5.3: n-Bu3SnH; AIBN / benzene / Heating 6.1: 98 percent / TBAF / tetrahydrofuran / Heating 7.1: O2; Rose bengal; DIPEA / CH2Cl2 / -78 °C / Irradiation 7.2: 61 percent / NaBH4; H2O / CH2Cl2 / 20 °C View Scheme |
C41H54O5Si
(+)-digitoxigenin
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: 99 percent / aq. TsOH / acetone / Heating 2.1: 82 percent / Cs2CO3 / acetonitrile / Heating 3.1: DIBAL-H / CH2Cl2 / -78 °C 3.2: KH; CS2; MeI / tetrahydrofuran / 20 °C 3.3: n-Bu3SnH; AIBN / benzene / Heating 4.1: 98 percent / TBAF / tetrahydrofuran / Heating 5.1: O2; Rose bengal; DIPEA / CH2Cl2 / -78 °C / Irradiation 5.2: 61 percent / NaBH4; H2O / CH2Cl2 / 20 °C View Scheme |
C39H50O4Si
(+)-digitoxigenin
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: DIBAL-H / CH2Cl2 / -78 °C 1.2: KH; CS2; MeI / tetrahydrofuran / 20 °C 1.3: n-Bu3SnH; AIBN / benzene / Heating 2.1: 98 percent / TBAF / tetrahydrofuran / Heating 3.1: O2; Rose bengal; DIPEA / CH2Cl2 / -78 °C / Irradiation 3.2: 61 percent / NaBH4; H2O / CH2Cl2 / 20 °C View Scheme |
C39H52O3Si
(+)-digitoxigenin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: 98 percent / TBAF / tetrahydrofuran / Heating 2.1: O2; Rose bengal; DIPEA / CH2Cl2 / -78 °C / Irradiation 2.2: 61 percent / NaBH4; H2O / CH2Cl2 / 20 °C View Scheme |
C39H50O4Si
(+)-digitoxigenin
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: 82 percent / Cs2CO3 / acetonitrile / Heating 2.1: DIBAL-H / CH2Cl2 / -78 °C 2.2: KH; CS2; MeI / tetrahydrofuran / 20 °C 2.3: n-Bu3SnH; AIBN / benzene / Heating 3.1: 98 percent / TBAF / tetrahydrofuran / Heating 4.1: O2; Rose bengal; DIPEA / CH2Cl2 / -78 °C / Irradiation 4.2: 61 percent / NaBH4; H2O / CH2Cl2 / 20 °C View Scheme |
C27H34O2Si
(+)-digitoxigenin
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: t-BuLi; lithium 2-thienylcyanocuprate / diethyl ether; tetrahydrofuran / -78 - -10 °C 1.2: 91 percent / diethyl ether; tetrahydrofuran / -78 - -30 °C 2.1: 99 percent / aq. TsOH / acetone / Heating 3.1: 82 percent / Cs2CO3 / acetonitrile / Heating 4.1: DIBAL-H / CH2Cl2 / -78 °C 4.2: KH; CS2; MeI / tetrahydrofuran / 20 °C 4.3: n-Bu3SnH; AIBN / benzene / Heating 5.1: 98 percent / TBAF / tetrahydrofuran / Heating 6.1: O2; Rose bengal; DIPEA / CH2Cl2 / -78 °C / Irradiation 6.2: 61 percent / NaBH4; H2O / CH2Cl2 / 20 °C View Scheme |
Conditions | Yield |
---|---|
With pyridine; dmap at 20 - 30℃; Inert atmosphere; | 100% |
In pyridine at 24℃; for 28h; | 98% |
With sodium acetate | |
In pyridine | |
With pyridine |
3,4-dihydro-2H-pyran
(+)-digitoxigenin
14-hydroxy-3β-tetrahydropyranyloxy-5β-card-20(22)-enolide
Conditions | Yield |
---|---|
polymer bound diphenylphosphane hydrobromide In dichloromethane at 20℃; for 3h; | 99% |
With ethyl acetate; trichlorophosphate | |
With pyridinium p-toluenesulfonate In dichloromethane |
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); triphenylphosphine In dichloromethane; chloroform at 0℃; | 98% |
t-butyldimethylsiyl triflate
(+)-digitoxigenin
4-[(3S,5R,8R,9S,10S,13R,14S,17R)-3-(tert-Butyl-dimethyl-silanyloxy)-14-hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl]-5H-furan-2-one
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 20℃; for 1h; | 96% |
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); triphenylphosphine In dichloromethane; chloroform at 0℃; | 94% |
Conditions | Yield |
---|---|
With 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione In dimethyl sulfoxide for 3h; Ambient temperature; | 92% |
With N-methyl-2-indolinone; tetrapropylammonium perruthennate In dichloromethane at 20℃; Oxidation; | 89% |
Stage #1: (+)-digitoxigenin With chromium(VI) oxide; sulfuric acid In water; acetone at 0℃; for 0.333333h; Stage #2: In methanol; water; acetone at 0℃; for 0.333333h; | 84% |
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); triphenylphosphine In dichloromethane; chloroform at 0℃; | 90% |
Conditions | Yield |
---|---|
With pyridine In 1,2-dichloro-ethane for 16h; Molecular sieve; | 88.56% |
tert-butyl ((2R,6R)-6-methyl-5-oxo-5,6-dihydro-2H-pyran-2-yl) carbonate
(+)-digitoxigenin
(2R,6S)-2-methyl-6-(digitoxigenoxy)-2H-pyran-3(6H)-one
Conditions | Yield |
---|---|
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triphenylphosphine In tetrahydrofuran; dichloromethane at 0℃; for 8h; Inert atmosphere; | 88% |
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triphenylphosphine In dichloromethane at 0℃; for 8h; | 88% |
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triphenylphosphine In dichloromethane at 0℃; for 12h; | 83% |
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); triphenylphosphine In dichloromethane; chloroform at 0℃; | 88% |
3,4-Di-O-acetyl-1,5-anhydro-2,6-didesoxy-D-ribo-hex-1-enit
(+)-digitoxigenin
(Digitoxigenin-3-yl)-3,4-di-O-acetyl-2,6-didesoxy-2-iod-α-D-altropyranosid
Conditions | Yield |
---|---|
With N-iodo-succinimide In acetonitrile | 86% |
With N-iodo-succinimide In dichloromethane; acetonitrile for 168h; | 86% |
tert-butyl ((2S,6R)-6-methyl-5-oxo-5,6-dihydro-2H-pyran-2-yl) carbonate
(+)-digitoxigenin
Conditions | Yield |
---|---|
With triphenylphosphine; tris(dibenzylideneacetone)dipalladium (0) In tetrahydrofuran; dichloromethane; chloroform at 0℃; for 8h; | 86% |
With triphenylphosphine; tris(dibenzylideneacetone)dipalladium(0) chloroform complex In dichloromethane at 0℃; for 8h; | 86% |
With palladium; triphenylphosphine | 86% |
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triphenylphosphine In tetrahydrofuran; dichloromethane at 0℃; for 8h; Inert atmosphere; | 86% |
(+)-digitoxigenin
C29H40O6
Conditions | Yield |
---|---|
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triphenylphosphine In tetrahydrofuran; dichloromethane at 0℃; for 8h; Inert atmosphere; | 85% |
1,5-anhydro-3,4-bis(triethylsilyl)-2,6-dideoxy-L-lyxo-hex-1-enitol
(+)-digitoxigenin
4-[(3S,5R,8R,9S,10S,13R,14S,17R)-14-Hydroxy-10,13-dimethyl-3-((2R,4S,5R,6S)-6-methyl-4,5-bis-triethylsilanyloxy-tetrahydro-pyran-2-yloxy)-hexadecahydro-cyclopenta[a]phenanthren-17-yl]-5H-furan-2-one
Conditions | Yield |
---|---|
With camphor-10-sulfonic acid In dichloromethane; toluene at 20℃; for 12h; | 84% |
2,3,5-tri-O-acetyl-D-ribofuranosyl bromide
(+)-digitoxigenin
3-O-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)digitoxigenin
Conditions | Yield |
---|---|
With mercury(II) cyanide In acetonitrile at 60℃; for 2h; | 83% |
α/β-1-trichloroacetaimidate-2,3,4-tribenzoyl-L-ribose
(+)-digitoxigenin
C49H54O11
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 0℃; for 0.333333h; Molecular sieve; Inert atmosphere; | 82% |
tert-butyl ((2S,6S)-6-methyl-5-oxo-5,6-dihydro-2H-pyran-2-yl) carbonate
(+)-digitoxigenin
C29H40O6
Conditions | Yield |
---|---|
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triphenylphosphine In tetrahydrofuran; dichloromethane at 0℃; for 6h; Inert atmosphere; | 82% |
With tris-(dibenzylideneacetone)dipalladium(0); triphenylphosphine In dichloromethane; chloroform at 0℃; | 82% |
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triphenylphosphine In dichloromethane at 0℃; for 8h; | 82% |
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triphenylphosphine In dichloromethane |
tert-butyl ((2S,6S)-6-methyl-5-oxo-5,6-dihydro-2H-pyran-2-yl) carbonate
(+)-digitoxigenin
Conditions | Yield |
---|---|
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triphenylphosphine In tetrahydrofuran; dichloromethane at 0℃; for 6h; | 82% |
4-oxo-4-(2-(trimethylsilyl)ethoxy)butanoic acid
(+)-digitoxigenin
14-hydroxy-5β,14β-card-20(22)-enolid-3β-yl 2-(trimethylsilyl)ethyl butanedioate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In benzene for 3h; Ambient temperature; | 78% |
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In tetrahydrofuran at 50℃; for 16h; | 76% |
With sodium acetate; sodium p-hydroxybenzenesulfonate; N,N-dimethyl-formamide at 125℃; |
C46H46NO7PS
(+)-digitoxigenin
A
(3β,5β,14β,17β)-3β-<(2,3,4-tri-O-benzyl-α-L-rhamnopyranosyl)oxy>-14-hydroxycard-20(22)-enolide
B
(3β,5β,14β,17β)-3β-<(2,3,4-tri-O-benzyl-β-L-rhamnopyranosyl)oxy>-14-hydroxycard-20(22)-enolide
Conditions | Yield |
---|---|
With 4 A molecular sieve; boron trifluoride diethyl etherate In dichloromethane at -10℃; for 1h; | A 76% B 8% |
Acetic acid (2S,3R,4S,6S)-6-[(2S,3R,4S)-4-(tert-butyl-dimethyl-silanyloxy)-2-methyl-3,4-dihydro-2H-pyran-3-yloxy]-3-((2S,4S,5R,6S)-4,5-diacetoxy-6-methyl-tetrahydro-pyran-2-yloxy)-2-methyl-tetrahydro-pyran-4-yl ester
(+)-digitoxigenin
C53H84O16Si
Conditions | Yield |
---|---|
With camphor-10-sulfonic acid In dichloromethane; toluene at 20℃; for 10h; | 75% |
phenyl-β-D-glucopyranoside
(+)-digitoxigenin
digitoxigenin 3-O-β-D-glucoside
Conditions | Yield |
---|---|
In water; acetonitrile at 10℃; for 12h; β-galactosidase (obt. from Asp. oryzae), phosphate buffer pH=5; | 74.1% |
With β-galactosidase In water; acetonitrile at 10℃; for 12h; phosphate buffer (pH 5); | 74.1% |
Conditions | Yield |
---|---|
Stage #1: (+)-digitoxigenin With diisobutylaluminium hydride In tetrahydrofuran at -5℃; Stage #2: With manganese(IV) oxide In 1,4-dioxane; water; acetic acid | 74% |
(+)-digitoxigenin
A
3β,14-dihydroxy-17β-(furan-3-yl)-5β,14β-androstane
B
24-Nor-5β,14β-chol-20(22)-en-3β,14,21,23-tetraol
C
17β-(Fur-3-yl)-5β-androst-14-en-3β-yl-acetat
Conditions | Yield |
---|---|
With diisobutylaluminium hydride In tetrahydrofuran 1.) -30 deg C - -35 deg C, 1 h, 2.) up to 0 deg C during 30 min; | A 71% B 14.6% C 370 mg |
With diisobutylaluminium hydride In tetrahydrofuran 1.) -30 deg C to -35 deg C, 1 h, 2.) up to 0 deg C during 30 min; | A 71% B 14.6% C 370 mg |
4-isothiocyanato benzoyl chloride
(+)-digitoxigenin
Conditions | Yield |
---|---|
With dmap In pyridine at 20℃; for 3h; Esterification; | 68% |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View