((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ⁶-benzo[c][1,2]thiazin-4-yl)-acetic acid methyl ester

Base Information

• Chemical Name: ((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ⁶-benzo[c][1,2]thiazin-4-yl)-acetic acid methyl ester
• CAS No.: 615580-15-9
• Molecular Formula: C₁₈H₁₉NO₃S
• Molecular Weight: 329.42

Synonyms:((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ⁶-benzo[c][1,2]thiazin-4-yl)-acetic acid methyl ester

Chemical Property of ((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ⁶-benzo[c][1,2]thiazin-4-yl)-acetic acid methyl ester

Chemical Property:

Purity/Quality:

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Technology Process of ((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ⁶-benzo[c][1,2]thiazin-4-yl)-acetic acid methyl ester

There total 3 articles about ((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ⁶-benzo[c][1,2]thiazin-4-yl)-acetic 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: 83.0%

C18H19NO3S (853685-29-7) → ((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ6-benzo[c][1,2]thiazin-4-yl)-acetic acid methyl ester (615580-15-9)

Guidance literature:

With lithium diisopropyl amide; In tetrahydrofuran; at -78 ℃; for 1h;

DOI:10.1016/j.tetlet.2005.03.184

Reference yield:

methyl (E)-3-(2-bromo-4-methylphenyl)acrylate (66192-28-7) → ((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ6-benzo[c][1,2]thiazin-4-yl)-acetic acid methyl ester (615580-15-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 87 percent / rac-BINAP; Pd(OAc)2; Cs₂CO₃ / toluene / 44 h / 110 °C

2: 83 percent / LDA / tetrahydrofuran / 1 h / -78 °C

With palladium diacetate; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; lithium diisopropyl amide; In tetrahydrofuran; toluene; 1: Buchwald-Hartwig reaction;

DOI:10.1016/j.tetlet.2005.03.184

Reference yield:

(S)-S-methyl-S-phenylsulfoximine (4381-25-3,33903-50-3,60933-65-5,81162-81-4) → ((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ6-benzo[c][1,2]thiazin-4-yl)-acetic acid methyl ester (615580-15-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 87 percent / rac-BINAP; Pd(OAc)2; Cs₂CO₃ / toluene / 44 h / 110 °C

2: 83 percent / LDA / tetrahydrofuran / 1 h / -78 °C

With palladium diacetate; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; lithium diisopropyl amide; In tetrahydrofuran; toluene; 1: Buchwald-Hartwig reaction;

DOI:10.1016/j.tetlet.2005.03.184

upstream raw materials:

C₁₈H₁₉NO₃S

methyl (E)-3-(2-bromo-4-methylphenyl)acrylate

(S)-S-methyl-S-phenylsulfoximine

Downstream raw materials:

2-((2S,4S)-7-Methyl-2-oxo-2-phenyl-3,4-dihydro-2λ⁶-benzo[c][1,2]thiazin-4-yl)-ethanol

(S)-3-(2-iodo-4-methylphenyl)butan-1-ol

(S)-trimethyl((5-methyl-2-(pent-4-en-2-yl)phenyl)ethynyl)silane

(S)-3-(2-Amino-4-methyl-phenyl)-butan-1-ol

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