2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester

Base Information

• Chemical Name: 2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester
• CAS No.: 183959-28-6
• Molecular Formula: C₃₅H₄₅N₅O₇
• Molecular Weight: 647.772
• Mol file: 183959-28-6.mol

Synonyms:2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester

Chemical Property of 2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester

There total 7 articles about 2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester 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: 57.0%

2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-chloro-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester (183959-27-5) → 2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester (183959-28-6)

Guidance literature:

With trifluoroacetic acid; for 48h; Ambient temperature;

DOI:10.1016/0040-4020(96)00818-6

Reference yield:

pivaloyl chloride (3282-30-2) → 2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester (183959-28-6)

Guidance literature:

Multi-step reaction with 5 steps

1: 93 percent / pyridine / Ambient temperature

2: 63 percent / AD-mix-α, water / 2-methyl-propan-2-ol / 1.) ) deg C, 6 h, 2.) RT, overnight

3: 93 percent / pyridine / 2 h / 0 °C

4: 71 percent / Ph₃P, DEAD / dioxane / Ambient temperature

5: 57 percent / aq. CF₃COOH / 48 h / Ambient temperature

With pyridine; AD-mix-α; water; triphenylphosphine; trifluoroacetic acid; diethylazodicarboxylate; In 1,4-dioxane; tert-butyl alcohol;

DOI:10.1016/0040-4020(96)00818-6

Reference yield:

2-Amino-6-chloropurin (10310-21-1) → 2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-hydroxy-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester (183959-28-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 71 percent / Ph₃P, DEAD / dioxane / Ambient temperature

2: 57 percent / aq. CF₃COOH / 48 h / Ambient temperature

With triphenylphosphine; trifluoroacetic acid; diethylazodicarboxylate; In 1,4-dioxane;

DOI:10.1016/0040-4020(96)00818-6

upstream raw materials:

2,2-Dimethyl-propionic acid (2R,4S,5R)-2-(2-amino-6-chloro-purin-9-yl)-4,6-bis-benzyloxy-5-(2,2-dimethyl-propionyloxy)-hexyl ester

pivaloyl chloride

2-Amino-6-chloropurin

(2R,3S)-1,3-O-dibenzyl-2-hydroxy-5-hexene

Downstream raw materials:

9-(4,6-di-O-benzyl-2,3-dideoxy-2-D-mannityl)guanine