3-(2-amino-benzoylamino)-1H-thieno[2,3-c]pyrazole-5-carboxylic acid tert-butyl ester

Base Information

• Chemical Name: 3-(2-amino-benzoylamino)-1H-thieno[2,3-c]pyrazole-5-carboxylic acid tert-butyl ester
• CAS No.: 921767-90-0
• Molecular Formula: C₁₇H₁₈N₄O₃S
• Molecular Weight: 358.421

Synonyms:3-(2-amino-benzoylamino)-1H-thieno[2,3-c]pyrazole-5-carboxylic acid tert-butyl ester

Chemical Property of 3-(2-amino-benzoylamino)-1H-thieno[2,3-c]pyrazole-5-carboxylic acid tert-butyl ester

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Technology Process of 3-(2-amino-benzoylamino)-1H-thieno[2,3-c]pyrazole-5-carboxylic acid tert-butyl ester

There total 1 articles about 3-(2-amino-benzoylamino)-1H-thieno[2,3-c]pyrazole-5-carboxylic acid tert-butyl 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: 91.0%

3-[2-amino-4-(4-methyl-piperazin-1-yl)-benzoylamino]-thieno[2,3-c]pyrazole-1,5-dicarboxylic acid 5-tert-butyl ester 1-ethyl ester (921767-89-7) → 3-(2-amino-benzoylamino)-1H-thieno[2,3-c]pyrazole-5-carboxylic acid tert-butyl ester (921767-90-0)

Guidance literature:

With triethylamine; In methanol; at 20 ℃; for 3h;

Reference yield: 63.0%

1H-pyrrole-2-carbonyl chloride (5427-82-7) + 3-(2-amino-benzoylamino)-1H-thieno[2,3-c]pyrazole-5-carboxylic acid tert-butyl ester (921767-90-0) → 3-{2-[(1H-pyrrole-2-carbonyl)-amino]-benzoylamino}-thieno[2,3-c]pyrazole-1,5-dicarboxylic acid 5-tert-butyl ester 1-ethyl ester (921767-92-2)

Guidance literature:

With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 20 ℃; for 3.5h;

upstream raw materials:

3-[2-amino-4-(4-methyl-piperazin-1-yl)-benzoylamino]-thieno[2,3-c]pyrazole-1,5-dicarboxylic acid 5-tert-butyl ester 1-ethyl ester

Downstream raw materials:

3-{2-[(1H-pyrrole-2-carbonyl)-amino]-benzoylamino}-thieno[2,3-c]pyrazole-1,5-dicarboxylic acid 5-tert-butyl ester 1-ethyl ester

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