(S)-4-benzhydryl-9-hydroxy-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid

Base Information

• Chemical Name: (S)-4-benzhydryl-9-hydroxy-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid
• CAS No.: 1370237-33-4
• Molecular Formula: C₂₅H₂₄N₂O₆
• Molecular Weight: 448.475
• Mol file: 1370237-33-4.mol

Synonyms:(S)-4-benzhydryl-9-hydroxy-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid

Chemical Property of (S)-4-benzhydryl-9-hydroxy-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (S)-4-benzhydryl-9-hydroxy-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid

There total 9 articles about (S)-4-benzhydryl-9-hydroxy-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid 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: 92.0%

(S)-4-benzhydryl-9-(benzyloxy)-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid (1370248-13-7) → (S)-4-benzhydryl-9-hydroxy-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid (1370237-33-4)

Guidance literature:

With trifluoroacetic acid; at 20 ℃; for 1h;

DOI:10.1021/acs.jmedchem.9b00861

Reference yield:

ethyl (S)-5-(benzyloxy)-1-(3-hydroxy-1,1-diphenylpropan-2-yl)-6-((2-methoxyethyl)carbamoyl)-4-oxo-1,4-dihydropyridine-3-carboxylate (1370248-11-5) → (S)-4-benzhydryl-9-hydroxy-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid (1370237-33-4)

Guidance literature:

Multi-step reaction with 3 steps

1: triphenylphosphine; diethylazodicarboxylate / toluene; tetrahydrofuran / 20 h / 20 °C / Cooling with ice

2: sodium hydroxide; water / ethanol / 1.17 h / 20 °C

3: palladium 10% on activated carbon; hydrogen / methanol / 1 h

With palladium 10% on activated carbon; water; hydrogen; triphenylphosphine; sodium hydroxide; diethylazodicarboxylate; In tetrahydrofuran; methanol; ethanol; toluene;

Reference yield:

ethyl (S)-4-benzhydryl-9-(benzyloxy)-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylate (1370248-12-6) → (S)-4-benzhydryl-9-hydroxy-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid (1370237-33-4)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium hydroxide; water / ethanol / 1.17 h / 20 °C

2: palladium 10% on activated carbon; hydrogen / methanol / 1 h

With palladium 10% on activated carbon; water; hydrogen; sodium hydroxide; In methanol; ethanol;

upstream raw materials:

ethyl (S)-5-(benzyloxy)-1-(3-hydroxy-1,1-diphenylpropan-2-yl)-6-((2-methoxyethyl)carbamoyl)-4-oxo-1,4-dihydropyridine-3-carboxylate

ethyl (S)-4-benzhydryl-9-(benzyloxy)-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylate

(S)-4-benzhydryl-9-(benzyloxy)-2-(2-methoxyethyl)-1,8-dioxo-1,3,4,8-tetrahydro-2H-pyrido[1,2-a]pyrazine-7-carboxylic acid

tert-butyl N-[(1S)-1-(hydroxymethyl)-2,2-diphenylethyl]carbamate