tert-butyl (3R,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate

Base Information

• Chemical Name: tert-butyl (3R,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate
• CAS No.: 1426072-84-5
• Molecular Formula: C₂₀H₂₆FN₃O₃
• Molecular Weight: 375.443

Synonyms:tert-butyl (3R,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate

Chemical Property of tert-butyl (3R,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate

Chemical Property:

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Technology Process of tert-butyl (3R,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate

There total 20 articles about tert-butyl (3R,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate 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:

tert-butyl (3R)-4-[2-(3-cyano-4-fluoro-2-methylphenyl)-2-hydroxylethyl]-3-(hydroxymethyl)piperazine-1-carboxylate (1426071-27-3) → tert-butyl (3S,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-83-4) + tert-butyl (3R,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-84-5)

Guidance literature:

With cyanomethylenetributyl-phosphorane; In benzene; at 100 ℃;

Reference yield:

(3S,9aR)-3-(3-cyano-4-fluoro-2-methyl-phenyl)-3-hydroxy-hexahydro-pyrazino[2,1-c][1,4]oxazine-8-carboxylic acid tert-butyl ester (1426073-11-1) → tert-butyl (3S,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-83-4) + tert-butyl (3R,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-84-5)

Guidance literature:

With triethylsilane; In dichloromethane; trifluoroacetic acid; at 20 ℃; for 12h; Inert atmosphere;

Reference yield:

C20H26FN3O3 → tert-butyl (3S,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-83-4) + tert-butyl (3R,9aR)-3-(3-cyano-4-fluoro-2-methylphenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-84-5)

Guidance literature:

With chiralpak IC column; In methanol; acetonitrile; at 35 ℃;

upstream raw materials:

di-tert-butyl dicarbonate

(3S,9aR)-3-(3-cyano-4-fluoro-2-methyl-phenyl)-3-hydroxy-hexahydro-pyrazino[2,1-c][1,4]oxazine-8-carboxylic acid tert-butyl ester

3-bromo-6-fluoro-2-methyl-benzonitrile

2-fluoro-6-methyl-benzonitrile

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