(R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

Base Information

Chemical Name:(R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester
CAS No.:1613621-78-5
Molecular Formula:C₂₄H₁₅BrF₃N₅O₃
Molecular Weight:558.314
Hs Code.:

(R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

Synonyms:(R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of (R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

Chemical Property:

Purity/Quality:: 98% ^*data from raw suppliers

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Technology Process of (R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

There total 18 articles about (R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-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:

: 1613621-77-4
(R)-5-(4-cyano-2-trimethylsilanylethynyl-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

: 1613621-78-5
(R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

Guidance literature:: With N-Bromosuccinimide; silver nitrate; In acetone; for 2h; Cooling with ice;

Reference yield:

: 1736-70-5
3-trifluoromethylphenylthiourea

: 1613621-78-5
(R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 5 steps

1.1: Tris(trimethylsilyl) phosphate / tetrahydrofuran / 17 h / 75 °C / Inert atmosphere

2.1: 2,6-dimethylpyridine / dichloromethane / 0.5 h / 0 - 20 °C / Inert atmosphere

2.2: 2.33 h / 10 - 20 °C / Inert atmosphere; Cooling with ice

3.1: daicel chiralpak IC colunm (5 μm, 250 mmx10 mm)

4.1: bis-triphenylphosphine-palladium(II) chloride; N-ethyl-N,N-diisopropylamine; copper(II) iodide / 1,4-dioxane / 1.25 h / 130 °C / Microwave irradiation; Inert atmosphere

5.1: silver nitrate; N-Bromosuccinimide / acetone / 2 h / Cooling with ice

With 2,6-dimethylpyridine; bis-triphenylphosphine-palladium(II) chloride; N-Bromosuccinimide; Tris(trimethylsilyl) phosphate; silver nitrate; copper(II) iodide; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; 1,4-dioxane; dichloromethane; acetone;

Reference yield:

: 1613621-56-9
4-(2-bromo-4-cyanophenyl)-6-methyl-2-thioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydro-pyrimidine-5-carboxylic acid methyl ester

: 1613621-78-5
(R)-5-(2-bromoethynyl-4-cyano-phenyl)-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 4 steps

1.1: 2,6-dimethylpyridine / dichloromethane / 0.5 h / 0 - 20 °C / Inert atmosphere

1.2: 2.33 h / 10 - 20 °C / Inert atmosphere; Cooling with ice

2.1: daicel chiralpak IC colunm (5 μm, 250 mmx10 mm)

3.1: bis-triphenylphosphine-palladium(II) chloride; N-ethyl-N,N-diisopropylamine; copper(II) iodide / 1,4-dioxane / 1.25 h / 130 °C / Microwave irradiation; Inert atmosphere

4.1: silver nitrate; N-Bromosuccinimide / acetone / 2 h / Cooling with ice

With 2,6-dimethylpyridine; bis-triphenylphosphine-palladium(II) chloride; N-Bromosuccinimide; silver nitrate; copper(II) iodide; N-ethyl-N,N-diisopropylamine; In 1,4-dioxane; dichloromethane; acetone;