Diisopropylethylamine → 2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-pyridin-4-yl-ethyl)-amide

関与物質

役割	名称	HCID	仕込み量
反応物	Diisopropylethylamine	HCID 81531	—
反応物	1-(Pyridin-4-yl)ethan-1-amine	HCID 247998	—
反応物	Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 9886157	—
反応物	2-bromo-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid	HCID 58438525	—
溶媒	Dimethylformamide	HCID 6228	—
溶媒	Sodium chloride; water	HCID 57417360	—
生成物	2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-pyridin-4-yl-ethyl)-amide	HCID 86677968	93%

反応手順

2-Bromo-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (320 mg, 0.86 mmol), 1-(pyridin-4-yl)ethanamine (105 mg, 0.86 mmol) and DIPEA (449 mg, 2.58 mmol) were combined with DMF (5 mL) to give a yellow solution. HATU (327 mg, 0.86 mmol) was added and the reaction mixture was stirred at room temperature for 2 h. The reaction mixture was diluted with brine and extracted with ethyl acetate (3×20 mL). The combined organic layers were washed with water and brine then dried with MgSO4, filtered and concentrated in vacuo to afford 380 mg (93%) of 2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-pyridin-4-yl-ethyl)-amide as a red oil. MS: (M+H)+=477.

情報源と証拠

DOI	10.6084/m9.figshare.5104873.v1
特許番号	US08658646B2
出典データセット	uspto-grants-2014_02
ORD ID	ord-3021d35fdc9c4cd8beb52bea812431d5
出典メモ	uspto-grants-2014_02