関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | 1,4-Dioxane | HCID 31275 | — |
| 反応物 | 3-Methyl-5-(tributylstannyl)isoxazole | HCID 2763255 | — |
| 反応物 | Methyl 2-(5-chlorofuro[3,2-b]pyridin-3-yl)acetate | HCID 10198435 | — |
| 反応物 | 2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenyl | HCID 11155794 | — |
| 触媒 | palladium(II) acetate | HCID 167845 | — |
| 溶媒 | Methanol | HCID 887 | — |
| 溶媒 | Dichloromethane | HCID 6344 | — |
| 生成物 | Methyl 2-(5-(3-methylisoxazol-5-yl)furo[3,2-b]pyridin-3-yl)acetate | HCID 57690995 | 96.3% |
反応手順
A sealable flask was charged with methyl 2-(5-chlorofuro[3,2-b]pyridin-3-yl)acetate, palladium (II) acetate (49.8 mg, 222 μmol), X-Phos (211 mg, 443 μmol), and 3-methyl-5-(tributylstannyl)isoxazole (1319 mg, 3546 μmol). The flask was sealed and dioxane (20 mL) was added. The mixture was sparged with N2 for 10 min, then heated at 100° C. for 48 h. The mixture was cooled to rt and concentrated for purification by MPLC (Teledine Isco combiFlash Companion). The crude residue was taken up in minimal CH2Cl2 and absorbed onto a 25 g loading cartridge and passed through a Redi-Sep® pre-packed silica gel column (40 g) using 98:2 CH2Cl2: MeOH to 90:10 CH2Cl2: MeOH to afford methyl 2-(5-(3-methylisoxazol-5-yl)furo[3,2-b]pyridin-3-yl)acetate (581 mg, 96.3% yield). LRMS (ESI) m/z calcd for C14H13N2O4 (M+H) 273.1, found 273.3.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US08198448B2 |
|---|
| 出典データセット | uspto-grants-2012_06 |
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| ORD ID | ord-843fc7c11bf545a6a228448a925926ca |
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| 出典メモ | uspto-grants-2012_06 |
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