4-(4-bromo-2-fluorophenyl)-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one

Base Information

Chemical Name:4-(4-bromo-2-fluorophenyl)-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS No.:1332334-00-5
Molecular Formula:C₁₇H₁₈BrFN₄O₂
Molecular Weight:409.258
Hs Code.:

Synonyms:4-(4-bromo-2-fluorophenyl)-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one

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Chemical Property of 4-(4-bromo-2-fluorophenyl)-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one

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Technology Process of 4-(4-bromo-2-fluorophenyl)-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one

There total 9 articles about 4-(4-bromo-2-fluorophenyl)-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-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: 58.0%

: 1332333-26-2
1,1-dimethylethyl (3S)-3-[2-(2-{[(4-bromo-2-fluorophenyl)amino]carbonyl}hydrazino)-2-oxoethyl]-1-pyrrolidinecarboxylate

: 4023-34-1
cyclopropanecarboxylic acid chloride

: 1332334-00-5
4-(4-bromo-2-fluorophenyl)-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one

Guidance literature:: 1,1-dimethylethyl (3S)-3-[2-(2-{[(4-bromo-2-fluorophenyl)amino]carbonyl}hydrazino)-2-oxoethyl]-1-pyrrolidinecarboxylate; With potassium carbonate; In water; Reflux;

cyclopropanecarboxylic acid chloride; In dichloromethane; at 20 ℃; for 1.5h;

Reference yield:

: C₁₃H₁₄BrFN₄O

: 4023-34-1
cyclopropanecarboxylic acid chloride

: 1332334-00-5
4-(4-bromo-2-fluorophenyl)-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one

Guidance literature:: With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 ℃; for 4h;

Reference yield:

: 204688-61-9
2‐[(3S)‐1‐[(tert‐butoxy)carbonyl]pyrrolidin‐3‐yl]acetic acid

: 1332334-00-5
4-(4-bromo-2-fluorophenyl)-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one

Guidance literature:: Multi-step reaction with 4 steps

1.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dmap / diethyl ether; ethanol / 20 °C

2.1: hydrazine hydrate / ethanol / 80 °C

3.1: dichloromethane / 0.5 h / 0 - 20 °C

4.1: potassium carbonate / water / Reflux

4.2: 1.5 h / 20 °C

With potassium carbonate; hydrazine hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; dmap; In diethyl ether; ethanol; dichloromethane; water;