7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester

Base Information

• Chemical Name: 7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester
• CAS No.: 93621-49-9
• Molecular Formula: C₁₄H₁₃N₃O₅S
• Molecular Weight: 335.34

Synonyms:7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester

Chemical Property of 7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester

There total 3 articles about 7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl 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: 60.0%

1-Benzyl-5-(methoxycarbonylmethyl-sulfamoyl)-1H-pyrazole-4-carboxylic acid ethyl ester (93621-44-4) → 7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ6-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester (93621-49-9)

Guidance literature:

With sodium methylate; In dimethyl sulfoxide; at 30 - 35 ℃; for 0.166667h;

DOI:10.1002/jhet.5570210418

Reference yield:

1-Benzyl-5-chlorosulfonyl-1H-pyrazole-4-carboxylic acid ethyl ester (93621-39-7) → 7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ6-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester (93621-49-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 54 percent / Potassium carbonate / tetrahydrofuran / 3.5 h / Ambient temperature

2: 60 percent / Sodium methylate / dimethylsulfoxide / 0.17 h / 30 - 35 °C

With sodium methylate; potassium carbonate; In tetrahydrofuran; dimethyl sulfoxide;

DOI:10.1002/jhet.5570210418

Reference yield:

ethyl 5-amino-1-benzyl-1H-pyrazole-4-carboxylate (19867-62-0) → 7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ6-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester (93621-49-9)

Guidance literature:

Multi-step reaction with 3 steps

1: 1) Aq_. NaNO₂, 10 N HCl, 2) cupric chloride dihydrate, sulfur dioxide / 1) Acetic acid, formic acid, -8 to -6 deg C, 5 min, 2) room temperature, 15 deg C_.

2: 54 percent / Potassium carbonate / tetrahydrofuran / 3.5 h / Ambient temperature

3: 60 percent / Sodium methylate / dimethylsulfoxide / 0.17 h / 30 - 35 °C

With hydrogenchloride; sulfur dioxide; sodium methylate; potassium carbonate; copper dichloride; sodium nitrite; In tetrahydrofuran; dimethyl sulfoxide;

DOI:10.1002/jhet.5570210418

upstream raw materials:

1-Benzyl-5-(methoxycarbonylmethyl-sulfamoyl)-1H-pyrazole-4-carboxylic acid ethyl ester

1-Benzyl-5-chlorosulfonyl-1H-pyrazole-4-carboxylic acid ethyl ester

ethyl 5-amino-1-benzyl-1H-pyrazole-4-carboxylate

Downstream raw materials:

7-Benzyl-4-hydroxy-2-methyl-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid (5-methyl-isoxazol-3-yl)-amide

7-Benzyl-4-hydroxy-2-methyl-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid thiazol-2-ylamide

7-Benzyl-4-hydroxy-2-methyl-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid pyridin-2-ylamide

7-Benzyl-4-hydroxy-2-methyl-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester

Post a RFQ

Cas No.:

Product Name:

Quantity:

Please select Metric Ton KG G Pound L ML

Email:

Company name:

Valid Period:

Detailed Requirements:

• Sample
• MOQ
• GMP
• FDA
• Price
  FOB CIF CFR EXW
• Urgent purchase

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

Remove

Submit

1

What can I do for you?
Get Best Price

Get Best Price for 93621-49-9 7-Benzyl-4-hydroxy-1,1-dioxo-2,7-dihydro-1H-1λ⁶-pyrazolo[4,3-e][1,2]thiazine-3-carboxylic acid methyl ester

Send

Send

Metric Ton KG G Pound L ML

Send

Send