4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione

Base Information

• Chemical Name: 4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione
• CAS No.: 142544-85-2
• Molecular Formula: C₃₁H₂₄N₄O₉
• Molecular Weight: 596.553

Synonyms:4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione

Chemical Property of 4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione

Chemical Property:

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Technology Process of 4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione

There total 2 articles about 4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

pyrazolo<4,3-d>pyrimidine-5,7-(1H,4H,6H)-dione (40769-81-1) + 2,3,5-tri-O-benzoyl-D-ribofuranosyl bromide (22860-91-9) → 4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione (142544-85-2)

Guidance literature:

With pyridine; ammonium sulfate; 1,1,1,3,3,3-hexamethyl-disilazane; Yield given. Multistep reaction; 1.) reflux, 15 h, 2.) acetonitrile, RT, 18 h;

DOI:10.1002/jhet.5570290211

Reference yield:

pyrazolo<4,3-d>pyrimidine-5,7-(1H,4H,6H)-dione (40769-81-1) + 1-O-acetyl-2,3,5-tri-O-benzoyl-D-ribofuranose (14215-97-5) → 4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione (142544-85-2)

Guidance literature:

With pyridine; ammonium sulfate; trimethylsilyl trifluoromethanesulfonate; 1,1,1,3,3,3-hexamethyl-disilazane; Yield given. Multistep reaction; 1.) reflux, 18 h, 2.) acetonitrile, RT, overnight;

DOI:10.1002/jhet.5570290211

Reference yield: 82.0%

4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione (142544-85-2) → 4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-5-oxopyrazolo<4,3-d>pyrimidin-7-(1H,6H)-thione (142544-91-0)

Guidance literature:

With diphosphorus pentasulfide; In 1,4-dioxane; for 3h; Heating;

DOI:10.1002/jhet.5570290211

upstream raw materials:

pyrazolo<4,3-d>pyrimidine-5,7-(1H,4H,6H)-dione

2,3,5-tri-O-benzoyl-D-ribofuranosyl bromide

1-O-acetyl-2,3,5-tri-O-benzoyl-D-ribofuranose

Downstream raw materials:

C₃₁H₂₂Cl₂N₄O₇

C₃₁H₂₃ClN₄O₈

4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-5-oxopyrazolo<4,3-d>pyrimidin-7-(1H,6H)-thione

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