(5R,6S,9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-ol

Base Information

• Chemical Name: (5R,6S,9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-ol
• CAS No.: 1289023-95-5
• Molecular Formula: C₂₅H₃₅F₂NO₂Si
• Molecular Weight: 447.641
• Mol file: 1289023-95-5.mol

Synonyms:(5R,6S,9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-ol

Chemical Property of (5R,6S,9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-ol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (5R,6S,9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-ol

There total 3 articles about (5R,6S,9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-ol 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: 65.0%

(6S,9R)-6-(2,3-difluorophenyl)-9-(triisopropylsilyloxy)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-5-ol (1190363-47-3) → (5S,6S,9R)-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridine-5,9-diol (1289023-94-4) + (5R,6S,9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-ol (1289023-95-5)

Guidance literature:

With tetrabutyl ammonium fluoride; In tetrahydrofuran; at 20 ℃; for 2h;

Reference yield: 65.0%

(9R)-6-(2,3-difluorophenyl)-9-(triisopropylsilyloxy)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-5-ol (1354640-48-4) → (5S,6S,9R)-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridine-5,9-diol (1289023-94-4) + (5R,6S,9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-ol (1289023-95-5) + (5S,6R,9R)-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridine-5,9-diol

Guidance literature:

With tetrabutyl ammonium fluoride; In tetrahydrofuran; at 20 ℃; for 2h; Inert atmosphere;

DOI:10.1021/jm3013147

Reference yield:

(9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-one (1354640-52-0) → (5R,6S,9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-ol (1289023-95-5)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium tetrahydroborate; methanol / 1 h / 20 °C

2: tetrabutyl ammonium fluoride / tetrahydrofuran / 2 h / 20 °C

With methanol; sodium tetrahydroborate; tetrabutyl ammonium fluoride; In tetrahydrofuran;

upstream raw materials:

(9R)-6-(2,3-difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridin-5-one

(6S,9R)-6-(2,3-difluorophenyl)-9-(triisopropylsilyloxy)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-5-ol

(9R)-6-(2,3-difluorophenyl)-9-(triisopropylsilyloxy)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-5-ol

Downstream raw materials:

(5R,6S,9R)-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5Hcyclohepta[b]pyridine-5,9-diol