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Triethylamine → (R)-6,6-difluoro-5-[2-fluoro-5-(2-methyl-thiazol-4-ylethynyl)-phenyl]-5,7,7-trimethyl-[1,4]oxazepan-3-one

HRID 331152
ノート
印刷プレビュー

反応式

HRID 331152 の反応式
[F:1][C:2]1([F:21])[C:8]([CH3:10])([CH3:9])[O:7][CH2:6][C:5](=[O:11])[NH:4][C@@:3]1([C:13]1[CH:18]=[C:17](I)[CH:16]=[CH:15][C:14]=1[F:20])[CH3:12].[CH3:22][C:23]1[S:24][CH:25]=[C:26]([C:28]#[C:29][Si](C)(C)C)[N:27]=1.C(N(CC)CC)C>[I-].C([N+](CCCC)(CCCC)CCCC)CCC.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.Cl[Pd]Cl.[Cu]I.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CN(C)C=O>[F:1][C:2]1([F:21])[C:8]([CH3:10])([CH3:9])[O:7][CH2:6][C:5](=[O:11])[NH:4][C@@:3]1([C:13]1[CH:18]=[C:17]([C:29]#[C:28][C:26]2[N:27]=[C:23]([CH3:22])[S:24][CH:25]=2)[CH:16]=[CH:15][C:14]=1[F:20])[CH3:12]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

9

反応物 3

HCID 8471TriethylamineHCID 109214422-Methyl-4-(2-(trimethylsilyl)ethynyl)-1,3-thiazoleHCID 68380642(R)-6,6-difluoro-5-(2-fluoro-5-iodo-phenyl)-5,7,7-trimethyl-[1,4]oxazepan-3-one

生成物 1

HCID 68379907(R)-6,6-difluoro-5-[2-fluoro-5-(2-methyl-thiazol-4-ylethynyl)-phenyl]-5,7,7-trimethyl-[1,4]oxazepan-3-one収率 91%

試薬・触媒・溶媒 5

HCID 11776
Triphenylphosphine
触媒
HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒
HCID 67553Tetrabutylammonium Iodide触媒
HCID 6102075Dichlorobis(triphenylphosphine)palladium触媒
HCID 6228Dimethylformamide溶媒2 回

反応条件

温度
40 °C

実験手順

A dried pressure tube was charged with (R)-6,6-difluoro-5-(2-fluoro-5-iodo-phenyl)-5,7,7-trimethyl-[1,4]oxazepan-3-one (intermediate B6″.1) (203 mg, 491 μmol), 2-methyl-4-((trimethylsilyl)ethynyl)thiazole (115 mg, 590 μmol), and N,N-dimethylformamide (3 ml) flushed with nitrogen (solution 1). Another dried pressure tube was flushed with argon, thereafter, successively N,N-dimethylformamide (3 ml), bis(triphenylphosphine) palladium(II)chloride (24.6 mg, 34.4 μmol), triphenylphoshine (5.2 mg, 19.7 μmol), copper(I)iodide (1.9 mg, 9.8 μmol), triethylamine (249 mg, 2.46 mmol), and tetrabutylammoniumiodide (185 mg, 491 μmol) were added. The mixture was heated to 40° C., and solution 1 was added dropwise. The temperature was raised to 60° C. and stirring was continued for 16 hours. For the workup, the reaction mixture was evaporated at reduced pressure and the residue directly purified by chromatography on silica gel using a gradient of heptane/ethyl acetate=100:0 to 50:50 as the eluent. The (R)-6,6-difluoro-5-[2-fluoro-5-(2-methyl-thiazol-4-ylethynyl)-phenyl]-5,7,7-trimethyl-[1,4]oxazepan-3-one (182 mg, 91% yield) was obtained as a white foam. MS (ISP): m/z=409.3 [M+H]+.

後処理

  1. customflushed with nitrogen (solution 1)
  2. customAnother dried pressure tube was flushed with argon
  3. temperatureThe temperature was raised to 60° C.
  4. customFor the workup, the reaction mixture was evaporated at reduced pressure
  5. customthe residue directly purified by chromatography on silica gel using a gradient of heptane/ethyl acetate=100:0 to 50:50 as the eluent

出典と根拠

ORDレコード
ord-8e817188ba6840c3b1abcf874949eb57
出典データセット
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08877744B2

反応ノート

読み込み中…

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