(R)-4-[3-(6-bromo-quinazolin-4-yl)-benzoyl]-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

Base Information

Chemical Name:(R)-4-[3-(6-bromo-quinazolin-4-yl)-benzoyl]-2-methyl-piperazine-1-carboxylic acid tert-butyl ester
CAS No.:1431542-31-2
Molecular Formula:C₂₅H₂₇BrN₄O₃
Molecular Weight:511.418
Hs Code.:

Synonyms:(R)-4-[3-(6-bromo-quinazolin-4-yl)-benzoyl]-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

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Chemical Property of (R)-4-[3-(6-bromo-quinazolin-4-yl)-benzoyl]-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

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Technology Process of (R)-4-[3-(6-bromo-quinazolin-4-yl)-benzoyl]-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

There total 5 articles about (R)-4-[3-(6-bromo-quinazolin-4-yl)-benzoyl]-2-methyl-piperazine-1-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:

: 1431542-28-7
3-(6-bromo-quinazolin-4-yl)-benzoic acid

: 170033-47-3
(R)-tert-butyl 2-methylpiperazine-1-carboxylate

: 1431542-31-2
(R)-4-[3-(6-bromo-quinazolin-4-yl)-benzoyl]-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

Guidance literature:: 3-(6-bromo-quinazolin-4-yl)-benzoic acid; With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; In dichloromethane; at 20 ℃; for 0.5h;

(R)-tert-butyl 2-methylpiperazine-1-carboxylate; In dichloromethane; at 20 ℃; for 2h;

Reference yield:

: 1431542-29-8
3-(6-bromo-quinazolin-4-yl)-benzoic acid ethyl ester

: 1431542-31-2
(R)-4-[3-(6-bromo-quinazolin-4-yl)-benzoyl]-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 2 steps

1.1: lithium hydroxide monohydrate; water / 1,4-dioxane / 3 h / 20 °C

2.1: N-ethyl-N,N-diisopropylamine; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate / dichloromethane / 0.5 h / 20 °C

2.2: 2 h / 20 °C

With lithium hydroxide monohydrate; water; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; In 1,4-dioxane; dichloromethane;

Reference yield:

: 4334-87-6
[3-(ethoxycarbonyl)phenyl]boronic acid

: 1431542-31-2
(R)-4-[3-(6-bromo-quinazolin-4-yl)-benzoyl]-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 3 steps

1.1: bis-triphenylphosphine-palladium(II) chloride; potassium phosphate / acetonitrile; water / 0.25 h / 100 °C / Microwave irradiation

2.1: lithium hydroxide monohydrate; water / 1,4-dioxane / 3 h / 20 °C

3.1: N-ethyl-N,N-diisopropylamine; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate / dichloromethane / 0.5 h / 20 °C

3.2: 2 h / 20 °C

With bis-triphenylphosphine-palladium(II) chloride; potassium phosphate; lithium hydroxide monohydrate; water; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; In 1,4-dioxane; dichloromethane; water; acetonitrile;