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Potassium Carbonate → (2S)-2-tert-butoxy-2-(5-methyl-2-(3-(1-methyl-1H-indazol-5-yl)phenyl)-7-(2-methylbenzo[d][1,3]dioxol-5-yl)benzo[d]thiazol-6-yl)ethyl pivalate

HRID 879320
ノート
印刷プレビュー

反応式

HRID 879320 の反応式
[C:1]([O:7][CH2:8][C@H:9]([C:15]1[C:39]([CH3:40])=[CH:38][C:18]2[N:19]=[C:20]([C:22]3[CH:27]=[CH:26][CH:25]=[C:24]([C:28]4[CH:29]=[C:30]5[C:34](=[CH:35][CH:36]=4)[N:33]([CH3:37])[N:32]=[CH:31]5)[CH:23]=3)[S:21][C:17]=2[C:16]=1Br)[O:10][C:11]([CH3:14])([CH3:13])[CH3:12])(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3].CC1(C)C(C)(C)OB([C:50]2[CH:59]=[CH:58][C:53]3[O:54][CH:55]([CH3:57])[O:56][C:52]=3[CH:51]=2)O1.C([O-])([O-])=O.[K+].[K+]>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:1]([O:7][CH2:8][C@@H:9]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])[C:15]1[C:39]([CH3:40])=[CH:38][C:18]2[N:19]=[C:20]([C:22]3[CH:27]=[CH:26][CH:25]=[C:24]([C:28]4[CH:29]=[C:30]5[C:34](=[CH:35][CH:36]=4)[N:33]([CH3:37])[N:32]=[CH:31]5)[CH:23]=3)[S:21][C:17]=2[C:16]=1[C:50]1[CH:59]=[CH:58][C:53]2[O:54][CH:55]([CH3:57])[O:56][C:52]=2[CH:51]=1)(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3]
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

6

反応物 3

HCID 11430Potassium CarbonateHCID 86699810(S)-2-(7-bromo-5-methyl-2-(3-(1-methyl-1H-indazol-5-yl)phenyl)benzo[d]thiazol-6-yl)-2-tert-butoxyethyl pivalateHCID 866998384,4,5,5-Tetramethyl-2-(2-methylbenzo[d][1,3]dioxol-5-yl)-1,3,2-dioxaborolane

生成物 1

HCID 86699837(2S)-2-tert-butoxy-2-(5-methyl-2-(3-(1-methyl-1H-indazol-5-yl)phenyl)-7-(2-methylbenzo[d][1,3]dioxol-5-yl)benzo[d]thiazol-6-yl)ethyl pivalate

試薬・触媒・溶媒

2
HCID 178418397HCID 178418397、化合物触媒HCID 312751,4-Dioxane溶媒

反応条件

温度
110 °C

実験手順

To a solution of (S)-2-(7-bromo-5-methyl-2-(3-(1-methyl-1H-indazol-5-yl)phenyl)benzo[d]thiazol-6-yl)-2-tert-butoxyethyl pivalate (16 mg, 0.025 mmol) and 4,4,5,5-tetramethyl-2-(2-methylbenzo[d][1,3]dioxol-5-yl)-1,3,2-dioxaborolane (13 mg, 0.050 mmol) in 1,4-dioxane was added Pd(PPh3)4 (4 mg, 3.1×10−3 mmol) and 2M K2CO3 (66 μL, 0.133 mmol). The reaction was degassed for 5 minutes with N2 and then heated to 110° C. for 1 h. After cooling, the reaction mixture was diluted with EtOAc, extracted with saturated NaHCO3, brine, dried over Na2SO4, filtered and concentrated and purified by flash column chromatography (silica gel, 0 to 10% ethyl acetate/hexanes) to give the product. LCMS-ESI+ (m/z): [M+H]+ calcd for C41H44N3O5S: 690.30; found: 690.4.

後処理

  1. customThe reaction was degassed for 5 minutes with N2
  2. temperatureAfter cooling
  3. additionthe reaction mixture was diluted with EtOAc
  4. extractionextracted with saturated NaHCO3, brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. custompurified by flash column chromatography (silica gel, 0 to 10% ethyl acetate/hexanes)
  9. customto give the product

出典と根拠

ORDレコード
ord-a5278b68391e4293a70a6a3d4e195f6e
出典データセット
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08987250B2

反応ノート

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