As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
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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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inquirySpecifications CAS No.: 13035-61-5 Other Names: beta-D-Ribofuranose 1,2,3,5-tetraacetate MF: C13H18O9 EINECS No.: 235-898-5 Place of Origin: Shandong, China (Mainland) Type: Pharmaceutical Intermediates Purity: 99%min Brand Name: Luyu
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inquiry1. We integrate research and development, production, and sales. A 1800 square meter research and development center,The company has conducted over 50 research and development and technical service projects annually, applied for more than 10 patents,
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inquiryAmoychem is committed to providing the top-quality chemical products and services Internationally. We offer our customers with friendly, professional service and reliable, high performance products that have been manufactured according to the accredi
Items Standard Result Description White or almost white crystalline powder Complies Loss on drying
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inquiryWe produce and export Beta-D-Ribofuranose 1,2,3,5-Tetraacetate to many courtries all the year round, the customers are all satisfied with our quality and service. Beta-D-Ribofuranose 1,2,3,5-tetraacetate Molecular fo
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inquiryLIDE PHARMACEUTICALS LIMITED is a professional chemicals and APIs leading manufacturer in China. Our core business line covers APIs, Intermediates, Herb extract, etc.
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inquiryhebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm
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inquiryUnique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White powder Storage:Cool dry place Package:25kg/drum Application:Pharmaceutical intermediate Tran
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inquiryService we can provide: 1. Mixed container: We can mix different items in one container. 2. Quality control: Before shipment, we can provide free sample for test. Inspection before shipping. 3. Packing: We can pack according to
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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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inquiry1. 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
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inquiry1,2,3,5-Tetra-O-acetyl-β-D-ribofuranose beta-D-Ribofuranose 1,2,3,5-tetraacetate CAS 13035-61-5 1,2,3,5-Tetraacetyl-beta-D-ribose CAS no 13035-61-5 1,2,3,5-tetraacetyl-beta-D-ribofuranose 1-Naphthol Manufacturer High quality Best price In
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inquiryOur 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
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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
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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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inquiryCAS 13035-61-5 Name beta-D-Ribofuranose 1,2,3,5-tetraacetate Appearance White powder Application Used in high-end cosmetics industry Appearance: White
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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
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inquiryHanways chempharm is a specialized company concentrating on the R&D, production, marketing and technical service of APIs and pharmaceutical intermediates. The marketing department is located in Wuhan. We have two GMP facilities in Hubei Pr
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inquiry1.No Less 8 years exporting experience. Clients 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 Specialized
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inquiryWe 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
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inquirybeta-D-Ribofuranose 1,2,3,5-tetraacetate CAS:13035-61-5 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
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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
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inquiryProduct Detail Minimum Order Qty. 10 Gram
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inquiryHebei Mojin Biotechnology Co., Ltd,Our business covers more than 30 countries, most of the big customers come from Europe, America and other countries in the world, we can guarantee the quality and price. In recent decades, with the efforts of all em
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inquiryPRODUCT DETAILS
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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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inquiryacetic anhydride
G
A
2,9-diacetylguanine
B
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Stage #1: acetic anhydride; G at 136℃; for 1h; Stage #2: With trifluoroacetic acid at 60 - 100℃; | A 96% B 86% |
D-Ribose
acetic anhydride
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
With pyridine for 24h; | 95% |
With sodium acetate for 5h; Reflux; |
Conditions | Yield |
---|---|
With aluminum (III) chloride In methanol at 60℃; for 2h; Solvent; Temperature; | 95% |
(2R,3R,4R,5R)-4-(acetyloxty)-2-[(acetyloxy)methyl]-5-(1H-1,2,3-benzotriazol-1-yl)tetrahydro-3-furanyl acetate
A
1,2,3-Benzotriazole
B
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
With acetic anhydride; trifluoroacetic acid at 95℃; | A n/a B 94.3% |
1,2,3,5-tetra-O-acetyl-D-ribofuranose
A
1,2,3-tri-O-acetyl-α-D-ribofuranoside
B
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
With Lipozyme TL IM In di-isopropyl ether; butan-1-ol at 40 - 42℃; for 12h; Enzymatic reaction; regioselective reaction; | A 92% B n/a |
acetic anhydride
Inosine
A
C7H6N4O2
B
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Stage #1: acetic anhydride; Inosine at 136℃; Stage #2: With trifluoroacetic acid at 60 - 100℃; | A n/a B 90% |
2-(acetoxymethoxy)-1,3-propanediyl diacetate
A
7-(1,3-diacetoxy-2-propoxymethyl)-N2-acetylguanine
B
9-(1,3-diacetoxy-2-propoxymethyl)-N2-acetylguanine
C
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In chlorobenzene for 2h; Heating; | A 38% B 53% C 85% |
acetic anhydride
adenosine
A
9-acetyl-6-acetylamino-9H-purine
B
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Stage #1: acetic anhydride; adenosine at 136℃; Stage #2: With trifluoroacetic acid at 60 - 100℃; | A n/a B 84% |
methyl 2,3,5-tri-O-acetyl-D-ribofuranoside
acetic anhydride
A
1,2,3,5-tetraacetylribose
B
tetra-O-acetyl-D-ribofuranose
Conditions | Yield |
---|---|
With sulfuric acid In acetic acid | A 45% B n/a |
2,3,5-tri-O-acetyl-1-O-methyl-β-D-ribofuranose
acetic anhydride
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
With sulfuric acid; acetic acid at 20℃; for 3h; | 43% |
With sulfuric acid; acetic acid | 43% |
With sulfuric acid; acetic acid |
5-O-triphenylmethyl-D-ribofuranose-1,2,3-triacetate
Acetyl bromide
acetic anhydride
1,2,3,5-tetraacetylribose
pyridine
D-ribose
acetic anhydride
A
1,2,3,5-tetraacetylribose
B
tetra-O-acetyl-D-ribofuranose
C
1,2,3,4-tri-O-acetyl-α-D-ribopyranose
D
1,2,3,4-tetra-O-acetyl-β-D-ribopyranose
D-ribose
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
With sulfuric acid anschl. mit Acetanhydrid und Essigsaeure unter Zusatz von H2SO4; | |
With sulfuric acid anschl. mit Acetanhydrid und Pyridin, Beh. des Rktprod. mit Essigsaeure, Acetanhydrid und H2SO4; | |
With hydrogenchloride; methanol anschl. mit Acetanhydrid und Pyridin, Beh. des Rktprod. mit HBr in Essigsaeure, anschl. Beh. des isolierten Rktprod. mit Acetanhydrid und Pyridin; | |
Multi-step reaction with 3 steps 1: Acidic conditions 2: pyridine 3: acetic acid; sulfuric acid View Scheme |
D-ribose
sodium acetate
acetic anhydride
A
1,2,3,5-tetraacetylribose
B
tetra-O-acetyl-D-ribofuranose
C
1,2,3,4-tri-O-acetyl-α-D-ribopyranose
D
1,2,3,4-tetra-O-acetyl-β-D-ribopyranose
Conditions | Yield |
---|---|
With pyridine |
D-ribose
acetic anhydride
A
1,2,3,5-tetraacetylribose
B
1,2,3,4-tetra-O-acetyl-β-D-ribopyranose
Conditions | Yield |
---|---|
With sodium acetate |
acetic anhydride
(2S,3R,4R,5R)-5-(hydroxymethyl)tetrahydrofuran-2,3,4-triyl triacetate
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
With pyridine |
D-Ribose
acetic anhydride
A
1,2,3,5-tetraacetylribose
B
tetra-O-acetyl-D-ribofuranose
C
1,2,3,4-tri-O-acetyl-α-D-ribopyranose
D
1,2,3,4-tetra-O-acetyl-β-D-ribopyranose
Conditions | Yield |
---|---|
With H-Beta zeolite for 2h; Ambient temperature; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
Conditions | Yield |
---|---|
With pyridine |
D-ribose
acetic anhydride
A
1,2,3,5-tetraacetylribose
B
tetra-O-acetyl-D-ribofuranose
C
1,2,3,4-tri-O-acetyl-α-D-ribopyranose
D
1,2,3,4-tetra-O-acetyl-β-D-ribopyranose
Conditions | Yield |
---|---|
Stage #1: D-ribose With ammonium chloride; ammonia In methanol at 0℃; for 0.5h; Stage #2: acetic anhydride In pyridine at 20℃; for 12h; Title compound not separated from byproducts; | |
With sulfuric acid In acetic acid at 50℃; for 3h; Acetylation; Further byproducts. Title compound not separated from byproducts.; | |
Stage #1: D-ribose With boric acid In acetic acid at 50℃; for 1h; Cyclization; Stage #2: acetic anhydride With sulfuric acid In acetic acid at 50℃; for 3h; Acetylation; Further stages. Further byproducts. Title compound not separated from byproducts.; |
5-O-triphenylmethyl-D-ribofuranose-1,2,3-triacetate
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: water; acetic acid 2: pyridine View Scheme |
β-D-ribofuranose
acetic anhydride
A
1,2,3,5-tetraacetylribose
B
tetra-O-acetyl-D-ribofuranose
Conditions | Yield |
---|---|
With perchloric acid In water at -70 - 20℃; |
vinyl acetate
D-ribose
A
1,2,3,5-tetraacetylribose
B
tetra-O-acetyl-D-ribofuranose
Conditions | Yield |
---|---|
With sodium carbonate In water at 20℃; for 0.666667h; pH=9; |
D-Ribose
A
1,2,3,5-tetraacetylribose
B
tetra-O-acetyl-D-ribofuranose
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Candida antarctica lipase B / tetrahydrofuran / 55 °C / Enzymatic reaction 2: pyridine / 20 °C View Scheme |
acetic anhydride
Acetic acid (2R,3S,4R)-3,4,5-trihydroxy-tetrahydro-furan-2-ylmethyl ester
A
1,2,3,5-tetraacetylribose
B
tetra-O-acetyl-D-ribofuranose
Conditions | Yield |
---|---|
With pyridine at 20℃; optical yield given as %de; |
Conditions | Yield |
---|---|
at 20℃; pH=12; aq. phosphate buffer; |
Conditions | Yield |
---|---|
With iron(III) chloride at 25℃; for 0.25h; Sonication; | |
With iron(III) chloride at 25℃; for 0.25h; Sonication; |
D-Ribose
acetic anhydride
A
1,2,3,5-tetraacetylribose
B
1,2,3,4-tetra-O-acetyl-β-D-ribopyranose
Conditions | Yield |
---|---|
In neat (no solvent) at 80℃; for 24h; Molecular sieve; Overall yield = 61 %; |
β-D-ribofuranose
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: Dowex-50W 2: pyridine 3: acetic acid; sulfuric acid View Scheme |
1,2,3,5-tetraacetylribose
2,3,5-tri-O-acetyl-β-D-ribofuranosyl chloride
Conditions | Yield |
---|---|
With thionyl chloride; acetic acid In dichloromethane for 18h; Ambient temperature; | 100% |
With hydrogenchloride In dichloromethane at 0℃; for 2.5h; | |
With methanol; acetyl chloride In dichloromethane at 20℃; for 72h; |
1,2,3,5-tetraacetylribose
1-azido-2,3,4-tri-O-acetylribose
Conditions | Yield |
---|---|
With trimethylsilylazide; tin(IV) chloride In dichloromethane at 20℃; | 100% |
With trimethylsilylazide; tin(IV) chloride In dichloromethane at 20℃; stereoselective reaction; | 100% |
With trimethylsilylazide; tin(IV) chloride In dichloromethane for 48h; Ambient temperature; | 98% |
trimethylsilyl trifluoromethanesulfonate
nicotinamide
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Stage #1: nicotinamide; 1,2,3,5-tetraacetylribose In acetonitrile at 20℃; Stage #2: trimethylsilyl trifluoromethanesulfonate In acetonitrile for 0.333333h; | 100% |
Stage #1: nicotinamide; 1,2,3,5-tetraacetylribose With chloro-trimethyl-silane; 1,1,1,3,3,3-hexamethyl-disilazane In acetonitrile Stage #2: trimethylsilyl trifluoromethanesulfonate In acetonitrile at 20℃; Reagent/catalyst; | |
Stage #1: trimethylsilyl trifluoromethanesulfonate; nicotinamide In acetonitrile for 0.0833333h; Stage #2: 1,2,3,5-tetraacetylribose In acetonitrile at 20℃; for 0.5h; Inert atmosphere; | |
In acetonitrile at -5℃; for 8h; Inert atmosphere; | 19 g |
trimethylsilyl trifluoromethanesulfonate
N-(trimethylsilyl)pyridine-3-carboxamide
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
In dichloromethane for 0.5h; Milling; | 100% |
for 0.5h; Milling; |
ethyl 6-bromo-4-oxo-1,4-dihydro-quinoline-3-carboxylate
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Stage #1: ethyl 6-bromo-4-oxo-1,4-dihydro-quinoline-3-carboxylate; 1,2,3,5-tetraacetylribose With N,O-bis-(trimethylsilyl)-acetamide In acetonitrile at 80℃; for 0.5h; Vorbrueggen Nucleoside Synthesis; Inert atmosphere; Stage #2: With trimethylsilyl trifluoromethanesulfonate In acetonitrile at 80℃; for 3h; Inert atmosphere; | 99% |
trimethylsilyl cyanide
1,2,3,5-tetraacetylribose
2,3,5-tri-O-acetyl-β-D-ribofuranosyl cyanide
Conditions | Yield |
---|---|
With tin(IV) chloride In dichloromethane for 4h; Ambient temperature; | 98% |
With tin(IV) chloride In dichloromethane at 20℃; for 30h; Reflux; |
5-iodo-2,4-bis-O-trimethylsilyluracil
1,2,3,5-tetraacetylribose
2',3',5'-tri-O-acetyl-5-iodouridine
Conditions | Yield |
---|---|
With 2-methyl-5-phenylbenzoxazolium perchlorate In acetonitrile for 7h; Reflux; | 98% |
With 2-methyl-5-phenylbenzoxazolium perchlorate In acetonitrile for 7h; Vorbrueggen Nucleoside Synthesis; Reflux; Inert atmosphere; Schlenk technique; | 1.71 g |
With poly(4,5-diphenyl-2-vinyloxazolium perchlorate) In acetonitrile for 7h; Vorbrueggen Nucleoside Synthesis; Schlenk technique; Inert atmosphere; Reflux; | 143 mg |
2-chlorothiphenol
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
With indium(III) bromide In dichloromethane at 20℃; for 2h; stereoselective reaction; | 98% |
4-Fluorothiophenol
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
With indium(III) bromide In dichloromethane at 20℃; for 2h; stereoselective reaction; | 98% |
2,6-dichloro-7H-purine
1,2,3,5-tetraacetylribose
(2R,3R,4R,5R)-4-(acetyloxy)-2-[(acetyloxy)methyl]-5-(2,6-dichloro-9H-purin-9-yl)tetrahydro-3-furanyl acetate
Conditions | Yield |
---|---|
With dmap In toluene at 100℃; for 2h; Reagent/catalyst; | 97.5% |
phenylthiotrimethylsilane
1,2,3,5-tetraacetylribose
phenyl 2,3,5-tri-O-acetyl-1-thio-β-D-ribofuranoside
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In dichloromethane | 97% |
Benzeneselenol
1,2,3,5-tetraacetylribose
phenyl 2,3,5-tri-O-acetyl-1-seleno-β-D-ribofuranoside
Conditions | Yield |
---|---|
With indium(III) bromide In dichloromethane at 20℃; for 2h; stereoselective reaction; | 97% |
With boron trifluoride diethyl etherate | 92% |
thiophenol
1,2,3,5-tetraacetylribose
phenyl 2,3,5-tri-O-acetyl-1-thio-β-D-ribofuranoside
Conditions | Yield |
---|---|
With iodine; iron In dichloromethane at 20℃; for 1h; Inert atmosphere; diastereoselective reaction; | 97% |
With molybdenium(VI) dioxodichloride In dichloromethane at 20℃; for 14h; | 86% |
para-thiocresol
1,2,3,5-tetraacetylribose
(2R,5S)-2-(acetoxymethyl)-5-(p-tolylthio)tetrahydrofuran-3,4-diyl diacetate
Conditions | Yield |
---|---|
With indium(III) bromide In dichloromethane at 20℃; for 2h; stereoselective reaction; | 97% |
With boron trifluoride diethyl etherate In dichloromethane at -78 - 0℃; Inert atmosphere; | 96% |
With tin(IV) chloride In dichloromethane at 0 - 20℃; for 4h; |
trimethylsilyl cyanide
1,2,3,5-tetraacetylribose
3,5-di-O-acetyl-1,2-O-(1-endo-cyanoethylidene)-α-D-ribofuranose
Conditions | Yield |
---|---|
tin(ll) chloride Ambient temperature; | 96% |
tin(ll) chloride for 2h; Ambient temperature; | 96% |
1,2,3,5-tetraacetylribose
2,3,5-tri-O-acetyl-D-ribofuranosyl bromide
Conditions | Yield |
---|---|
With trimethylsilyl bromide In dichloromethane at -40 - 20℃; | 96% |
With hydrogen bromide In dichloromethane at -20℃; for 3h; | |
With trimethylsilyl bromide In chloroform at 0℃; | |
With hydrogen bromide; acetic acid In dichloromethane at 0℃; for 0.333333h; |
trimethylsilyl trifluoromethanesulfonate
1,2,3,5-tetraacetylribose
N,N-bis(trimethylsilyl)nicotinamide
Conditions | Yield |
---|---|
In 1,2-dichloro-ethane at 45℃; for 2h; | 96% |
In 1,2-dichloro-ethane at 45℃; for 2h; Inert atmosphere; | 144 mg |
6-fluoroquinolin-4(1H)-one
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Stage #1: 6-fluoroquinolin-4(1H)-one; 1,2,3,5-tetraacetylribose With N,O-bis-(trimethylsilyl)-acetamide In acetonitrile at 80℃; for 0.25h; microwave irradiation; Stage #2: With trimethylsilyl trifluoromethanesulfonate In acetonitrile at 80℃; for 0.833333h; microwave irradiation; Further stages.; | 96% |
4-nitro-benzimidazole
1,2,3,5-tetraacetylribose
(2R,3R,4R,5R)-2-(acetoxymethyl)-5-(4-nitro-1H-benzo[d]imidazol-1-yl)tetrahydrofuran-3,4-diyl diacetate
Conditions | Yield |
---|---|
With N,O-bis-(trimethylsilyl)-acetamide; trimethylsilyl trifluoromethanesulfonate In acetonitrile for 3h; Reflux; | 95% |
With toluene-4-sulfonic acid at 160℃; under 25 Torr; for 0.333333h; | 60% |
With tin(IV) chloride In acetonitrile | 37% |
2-Bromo-6-[2-(4-nitro-phenyl)-ethoxy]-9-trimethylsilanyl-9H-purine
1,2,3,5-tetraacetylribose
B
Acetic acid (2R,3R,4R,5R)-4-acetoxy-5-acetoxymethyl-2-{2-bromo-6-[2-(4-nitro-phenyl)-ethoxy]-purin-9-yl}-tetrahydro-furan-3-yl ester
Conditions | Yield |
---|---|
With trimethylsilyl trifluoromethanesulfonate In acetonitrile reflux, 1h; rt, 16 h; Yields of byproduct given; | A n/a B 95% |
chloro-trimethyl-silane
1,2,3,5-tetraacetylribose
isoalloxazine
3-(2',3',5'-triacetyl-β-D-ribofuranosyl)benzo[g]pteridine-2,4-(1H,3H)-dione
Conditions | Yield |
---|---|
Stage #1: chloro-trimethyl-silane; isoalloxazine With triethylamine In benzene at 20℃; for 48h; Substitution; Stage #2: 1,2,3,5-tetraacetylribose With tin(IV) chloride In dichloromethane at -20℃; for 0.25h; Substitution; Further stages.; | 95% |
4,5-dibromo-1H-imidazole
1,2,3,5-tetraacetylribose
4,5-dibromo-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)imidazole
Conditions | Yield |
---|---|
Stage #1: 4,5-dibromo-1H-imidazole With N,O-bis-(trimethylsilyl)-acetamide In acetonitrile at 35℃; for 0.333333h; Stage #2: 1,2,3,5-tetraacetylribose With trimethylsilyl trifluoromethanesulfonate In acetonitrile at 65℃; for 1.5h; Vorbruggen's reaction; | 95% |
Stage #1: 4,5-dibromo-1H-imidazole; 1,2,3,5-tetraacetylribose With N,O-bis-(trimethylsilyl)-acetamide In acetonitrile at 20℃; for 5h; Stage #2: With trimethylsilyl trifluoromethanesulfonate In acetonitrile at 0 - 60℃; for 8h; Further stages.; | 66% |
Stage #1: 4,5-dibromo-1H-imidazole; 1,2,3,5-tetraacetylribose With benzenesulfonamide In acetonitrile Stage #2: With trimethylsilyl trifluoromethanesulfonate Further stages.; |
methyl 1H-1,2,4-triazole-3-carboxylate
1,2,3,5-tetraacetylribose
1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-1,2,4-triazole-3-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In methanol | 95% |
With toluene-4-sulfonic acid In ethanol | 92% |
With toluene-4-sulfonic acid In 2-methyl-propan-1-ol | 92% |
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Stage #1: 2,2,2-trifluoro-N-(7-chloro-5-methyl-3H-imidazo[4,5-b]pyridin-6-yl)acetamide With N,O-bis-(trimethylsilyl)-acetamide In acetonitrile at 80℃; for 0.25h; Inert atmosphere; Stage #2: 1,2,3,5-tetraacetylribose With trimethylsilyl trifluoromethanesulfonate In acetonitrile at 0℃; for 3h; Inert atmosphere; Reflux; | 95% |
1,2,3,5-tetraacetylribose
Conditions | Yield |
---|---|
Stage #1: 6-chloro-2-((3,3,3-trifluoropropyl)thio)-9H-purine; 1,2,3,5-tetraacetylribose In 1,2-dichloro-ethane for 0.5h; Reflux; Large scale; Stage #2: With tin(IV) chloride In 1,2-dichloro-ethane for 2h; Reagent/catalyst; Solvent; Temperature; Reflux; Large scale; | 95% |
1,2,3,5-tetraacetylribose
2,3,5-tri-O-acetyl-1,4-anhydro-D-ribitol
Conditions | Yield |
---|---|
With triethylsilane; trimethylsilyl trifluoromethanesulfonate In acetonitrile for 24h; Ambient temperature; | 94% |
Multi-step reaction with 2 steps 1: trifluoroborane diethyl ether / dichloromethane / 2 h / 0 - 20 °C 2: tri-n-butyl-tin hydride; 2,2'-azobis(isobutyronitrile) / toluene / 2.5 h / Reflux View Scheme |
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