(E) ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(2-nitro)vinyl-pyrazole-3-carboxylate

Base Information

Chemical Name:(E) ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(2-nitro)vinyl-pyrazole-3-carboxylate
CAS No.:182685-85-4
Molecular Formula:C₃₄H₂₉N₃O₁₁
Molecular Weight:655.618
Hs Code.:

Synonyms:(E) ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(2-nitro)vinyl-pyrazole-3-carboxylate

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Chemical Property of (E) ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(2-nitro)vinyl-pyrazole-3-carboxylate

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Technology Process of (E) ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(2-nitro)vinyl-pyrazole-3-carboxylate

There total 4 articles about (E) ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(2-nitro)vinyl-pyrazole-3-carboxylate 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: 64.0%

: 182685-76-3
ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(1-hydroxy-2-nitro)-pyrazole-3-carboxylate

: 182685-85-4
(E) ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(2-nitro)vinyl-pyrazole-3-carboxylate

Guidance literature:: With methanesulfonyl chloride; triethylamine; In dichloromethane; at 22 - 25 ℃; for 2h;

Reference yield:

: 6974-32-9
1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose

: 182685-85-4
(E) ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(2-nitro)vinyl-pyrazole-3-carboxylate

Guidance literature:: Multi-step reaction with 3 steps

1: 63 percent / hexamethyldisilazane (HMDS); trimethylsilyl chloride (TMS); trifluoromethane sulfonic acid (TfOH) / ammoniumsulphate / acetonitrile / 3 h

2: 65 percent / Al₂O₃ / 12 h / 22 - 25 °C

3: 64 percent / MeSO₂Cl; Et₃N / CH₂Cl₂ / 2 h / 22 - 25 °C

With aluminum oxide; chloro-trimethyl-silane; trifluorormethanesulfonic acid; methanesulfonyl chloride; triethylamine; 1,1,1,3,3,3-hexamethyl-disilazane; ammonium sulfate; In dichloromethane; acetonitrile; 1: glycosylation / 2: Addition / 3: Dehydration;

Reference yield:

: 179692-09-2
ethyl 4-formyl-1H-pyrazol-3⁽⁵⁾-carboxylate

: 182685-85-4
(E) ethyl 1-(β-D-2',3',5'-tri-O-benzoyl-ribofuranosyl)-4-(2-nitro)vinyl-pyrazole-3-carboxylate

Guidance literature:: Multi-step reaction with 3 steps

1: 63 percent / hexamethyldisilazane (HMDS); trimethylsilyl chloride (TMS); trifluoromethane sulfonic acid (TfOH) / ammoniumsulphate / acetonitrile / 3 h

2: 65 percent / Al₂O₃ / 12 h / 22 - 25 °C

3: 64 percent / MeSO₂Cl; Et₃N / CH₂Cl₂ / 2 h / 22 - 25 °C

With aluminum oxide; chloro-trimethyl-silane; trifluorormethanesulfonic acid; methanesulfonyl chloride; triethylamine; 1,1,1,3,3,3-hexamethyl-disilazane; ammonium sulfate; In dichloromethane; acetonitrile; 1: glycosylation / 2: Addition / 3: Dehydration;