Molecular Formula | C28H24O9 |
Molar Mass | 504.48 |
Density | 1.35±0.1 g/cm3(Predicted) |
Melting Point | 128-130°C |
Boling Point | 621.0±55.0 °C(Predicted) |
Specific Rotation(α) | 24.4 º (c=1, pyridine) |
Flash Point | 264.258°C |
Solubility | Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly, Sonicated), |
Vapor Presure | 0mmHg at 25°C |
Appearance | White crystal |
Color | Clear slightly yellow or greenish to brown |
BRN | 100243 |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 24 ° (C=1, Pyridine) |
MDL | MFCD00005357 |
Use | Used as a pharmaceutical Intermediate |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/38 - Irritating to eyes and skin. |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 29400090 |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Overview | Among the chemical drugs, nucleosides and their derivatives, the amount of 1-acetoxy-2, 3, 5-tribenzoyloxy-1-beta-d-ribofuranose is a key intermediate for the synthesis of nucleosides and their derivatives. The chemical and Medicinal Chemistry of nucleoside compounds is a new research field at home and abroad. Nucleoside or nucleotide analogs with anti Virus activity are known as nucleoside anti Virus drugs, the treatment of Virus disease plays a very important role. |
Application | 1-acetoxy-2, 3, 5-tribenzoyloxy-1-beta-d-ribofuranose is an important intermediate for the preparation of nucleoside and its derivatives, such as ribavirin, an antiviral drug, or fludarabine, an antitumor drug. |
preparation | add the above 145g benzoyl compound to 1.45L dichloromethane, stir and dissolve, add 54g of acetic anhydride, the temperature was cooled to 10-20 °c with ice water bath, and 2g of p-toluenesulfonic acid was added. The reaction temperature was controlled not to exceed 20 °c, and the reaction was continued for 12h at this temperature. Filter, wash the filter cake with appropriate amount of dichloromethane, combine the filtrate, wash the filtrate successively with 500ml of water, 500ml of saturated sodium bicarbonate solution and 500ml of saturated brine, dry over anhydrous magnesium sulfate, filter, concentrate under reduced pressure to recover the solvent, A white crude product was obtained, which was recrystallized from ethanol to obtain the product, which was dried in a blast drying oven to obtain 1-acetoxy-2, 3, white crystalline powder of 5-tribenzoyloxy-1-beta-d-ribofuranose 71.5g, yield 70.9%, purity 99.1%(HPLC), melting point 129-131 ℃, the specific rotation was 42.444 °(c = 1, chloroform). |
Use | for pharmaceutical intermediates |