2-{4-[2-chloro-5-((2S,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2-nitro-phenoxy}-2-methyl-propionic acid ethyl ester

Base Information

• Chemical Name: 2-{4-[2-chloro-5-((2S,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2-nitro-phenoxy}-2-methyl-propionic acid ethyl ester
• CAS No.: 1291094-42-2
• Molecular Formula: C₃₃H₃₈ClNO₁₄
• Molecular Weight: 708.116
• Mol file: 1291094-42-2.mol

Synonyms:2-{4-[2-chloro-5-((2S,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2-nitro-phenoxy}-2-methyl-propionic acid ethyl ester

Chemical Property of 2-{4-[2-chloro-5-((2S,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2-nitro-phenoxy}-2-methyl-propionic acid ethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2-{4-[2-chloro-5-((2S,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2-nitro-phenoxy}-2-methyl-propionic acid ethyl ester

There total 4 articles about 2-{4-[2-chloro-5-((2S,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2-nitro-phenoxy}-2-methyl-propionic acid ethyl 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:

ethyl 2-bromoisobutyrate (600-00-0) + acetic acid (2R,3R,4R,SS,6S)-3,4,5-triacetoxy-6-[4-chloro-3-{4-hydroxy-3-nitro-benzyl}-phenyl]-tetrahydro-pyran-2-ylmethyl ester (1291094-41-1) + acetic anhydride (108-24-7) → 2-{4-[2-chloro-5-((2S,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2-nitro-phenoxy}-2-methyl-propionic acid ethyl ester (1291094-42-2)

Guidance literature:

ethyl 2-bromoisobutyrate; acetic acid (2R,3R,4R,SS,6S)-3,4,5-triacetoxy-6-[4-chloro-3-{4-hydroxy-3-nitro-benzyl}-phenyl]-tetrahydro-pyran-2-ylmethyl ester; With caesium carbonate; In acetonitrile; for 30h; Inert atmosphere; Reflux;

acetic anhydride; With pyridine; dmap; In dichloromethane;

Reference yield:

(2R,3R,4R,5S,6S)-2-(acetoxymethyl)-6-(4-chloro-3-(4-ethoxybenzyl)phenyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (461432-25-7) → 2-{4-[2-chloro-5-((2S,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2-nitro-phenoxy}-2-methyl-propionic acid ethyl ester (1291094-42-2)

Guidance literature:

Multi-step reaction with 4 steps

1: boron tribromide / dichloromethane / 2.5 h / -78 - -30 °C

2: sodium hydrogencarbonate; water / dichloromethane / 2.5 h / -78 - -30 °C

3: nitric acid; tetrabutylammomium bromide / 1,1-dichloroethane; water / 4 h / 0 - 20 °C

4: caesium carbonate / acetonitrile / 30 h / Inert atmosphere; Reflux

With tetrabutylammomium bromide; water; nitric acid; boron tribromide; sodium hydrogencarbonate; caesium carbonate; In 1,1-dichloroethane; dichloromethane; water; acetonitrile;

Reference yield:

(2R,3R,4R,5S,6S)-2-(acetoxymethyl)-6-(4-chloro-3-(4-hydroxybenzyl)phenyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (1079083-63-8) → 2-{4-[2-chloro-5-((2S,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2-nitro-phenoxy}-2-methyl-propionic acid ethyl ester (1291094-42-2)

Guidance literature:

Multi-step reaction with 2 steps

1: nitric acid; tetrabutylammomium bromide / 1,1-dichloroethane; water / 4 h / 0 - 20 °C

2: caesium carbonate / acetonitrile / 30 h / Inert atmosphere; Reflux

With tetrabutylammomium bromide; nitric acid; caesium carbonate; In 1,1-dichloroethane; water; acetonitrile;

upstream raw materials:

ethyl 2-bromoisobutyrate

acetic acid (2R,3R,4R,SS,6S)-3,4,5-triacetoxy-6-[4-chloro-3-{4-hydroxy-3-nitro-benzyl}-phenyl]-tetrahydro-pyran-2-ylmethyl ester

acetic anhydride

(2R,3R,4R,5S,6S)-2-(acetoxymethyl)-6-(4-chloro-3-(4-ethoxybenzyl)phenyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate

Downstream raw materials:

[(2R,3R,4R,5S,6S)-3,4,5-triacetoxy-6-[4-chloro-3-[(2,2-dimethyl-3-oxo-2H-1,4-benzoxazin-6-yl)methyl]phenyl]tetrahydropyran-2-yl]methyl acetate

6-[2-chloro-5-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-benzyl]-2,2-dimethyl-4H-benzo[1,4]oxazin-3-one