2-bromo-N-tert-butyl-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxamide → HCID 71280404、化合物

HRID 246754

反応式

HRID 246754 の反応式
Br[C:2]1[N:7]=[C:6]2[C:8]([C:30]([NH:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])=[CH:9][N:10]([C:11]([C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=3)([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)[C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)[C:5]2=[N:4][CH:3]=1.[F:37][C:38]1[CH:46]=[C:45]2[C:41]([C:42]([Sn](CCCC)(CCCC)CCCC)=[N:43][NH:44]2)=[CH:40][CH:39]=1>CN(C=O)C.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.[Cu]I>[C:33]([NH:32][C:30]([C:8]1[C:6]2=[N:7][C:2]([C:42]3[C:41]4[C:45](=[CH:46][C:38]([F:37])=[CH:39][CH:40]=4)[NH:44][N:43]=3)=[CH:3][N:4]=[C:5]2[N:10]([C:11]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH:9]=1)=[O:31])([CH3:35])([CH3:34])[CH3:36]

参加物

6

反応物 2

HCID 866780082-bromo-N-tert-butyl-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxamideHCID 1784482326-fluoro-3-(tributylstannyl)-1H-indazole

生成物 1

HCID 71280404HCID 71280404、化合物収率 27%

試薬・触媒・溶媒 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 178418397HCID 178418397、化合物触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
85 °C

実験手順

In a round-bottomed flask, 2-bromo-N-tert-butyl-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxamide (600 mg, 1.12 mmol) and 6-fluoro-3-(tributylstannyl)-1H-indazole (475 mg, 1.12 mmol) were dissolved in DMF (10 mL) under nitrogen. Pd(PPh3)4 (65 mg, 0.056 mmol) and CuI (43 mg, 0.224 mmol) were added and the mixture sonicated for 5 min while bubbling nitrogen. The reaction mixture was stirred at 85° C. for 16 hours. After solvent removal, the concentrated mixture was purified by column chromatography on silica gel eluting with petroleum ether/EtOAc (3:1 v/v) to give N-tert-butyl-2-(6-fluoro-1H-indazol-3-yl)-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxamide (180 mg, 27%) as a white solid. LCMS: (M+H)+=595; 1H NMR (300 MHz, DMSO): δ 13.60 (s, 1H), 8.78 (s, 1H), 8.45-8.40 (m, 1H), 8.01 (s, 1H), 7.95 (s, 1H), 7.45-7.33 (m, 10H), 7.21-7.09 (m, 7H), 1.50 (s, 9H).

後処理

  1. customthe mixture sonicated for 5 min
  2. customwhile bubbling nitrogen
  3. customAfter solvent removal
  4. customthe concentrated mixture was purified by column chromatography on silica gel eluting with petroleum ether/EtOAc (3:1 v/v)

出典と根拠

ORDレコード
ord-d57040aa1a194223b5861539b724d9d9
出典データセット
uspto-grants-2014_02
特許番号
US08658646B2

関連ノート

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