(5R,7S)-7-(4-bromophenyl)-3-oxa-1-azaspiro[4.4]nonan-2-one

Base Information

• Chemical Name: (5R,7S)-7-(4-bromophenyl)-3-oxa-1-azaspiro[4.4]nonan-2-one
• CAS No.: 1622180-53-3
• Molecular Formula: C₁₃H₁₄BrNO₂
• Molecular Weight: 296.164
• Mol file: 1622180-53-3.mol

Synonyms:(5R,7S)-7-(4-bromophenyl)-3-oxa-1-azaspiro[4.4]nonan-2-one

Chemical Property of (5R,7S)-7-(4-bromophenyl)-3-oxa-1-azaspiro[4.4]nonan-2-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (5R,7S)-7-(4-bromophenyl)-3-oxa-1-azaspiro[4.4]nonan-2-one

There total 9 articles about (5R,7S)-7-(4-bromophenyl)-3-oxa-1-azaspiro[4.4]nonan-2-one 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: 97.0%

((1R,3S)-1-amino-3-(4-bromophenyl)cyclopentyl)methanol (1240554-98-6) + 1,1'-carbonyldiimidazole (530-62-1) → (5R,7S)-7-(4-bromophenyl)-3-oxa-1-azaspiro[4.4]nonan-2-one (1622180-53-3)

Guidance literature:

With pyridine; In tetrahydrofuran; at 20 ℃; Solvent; Inert atmosphere;

DOI:10.1021/acs.jmedchem.6b01433

Reference yield:

methyl (1R,3S)-amino-3-(4-bromophenyl)cyclopentane-1-carboxylate hydrochloride (1036030-21-3) → (5R,7S)-7-(4-bromophenyl)-3-oxa-1-azaspiro[4.4]nonan-2-one (1622180-53-3)

Guidance literature:

Multi-step reaction with 2 steps

1: methanol; sodium tetrahydroborate / 0 - 20 °C

2: pyridine / 1,4-dioxane / 4 h

With pyridine; methanol; sodium tetrahydroborate; In 1,4-dioxane;

Reference yield:

(1R,3S)-methyl 1-amino-3-(4-bromophenyl)cyclopentanecarboxylate (1036030-37-1) → (5R,7S)-7-(4-bromophenyl)-3-oxa-1-azaspiro[4.4]nonan-2-one (1622180-53-3)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium tetrahydroborate / ethanol / 18 h / 0 - 20 °C

2: pyridine / tetrahydrofuran / 20 °C / Inert atmosphere

With pyridine; sodium tetrahydroborate; In tetrahydrofuran; ethanol;

DOI:10.1021/acs.jmedchem.6b01433

upstream raw materials:

((1R,3S)-1-amino-3-(4-bromophenyl)cyclopentyl)methanol

1,1'-carbonyldiimidazole

(1R,3S)-methyl 1-amino-3-(4-bromophenyl)cyclopentanecarboxylate

(S)-3-(4-bromophenyl)cyclopentanone

Downstream raw materials:

2-(4-((SR,7S)-2-oxo-3-oxa-1-azaspiro [4,4]nonan-7-yl)phenyl)acetic acid

((1R,3S)-1-amino-3-((R)-6-hexyl-5,6,7,8-tetrahydronaphthalen-2-yl)cyclopentyl)methanol

tert-butyl 2-(4-((5R,7S)-2-oxo-3-oxa-1-azaspiro[4.4]nonan-7-yl)phenyl)acetate