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Diiodomethane → Acetic acid (2R,3R,4R,5R)-3,4-diacetoxy-5-(6-chloro-2-iodo-purin-9-YL)-tetrahydro-furan-2-ylmethyl ester
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Diiodomethane | HCID 6346 | — |
| 反応物 | Pentyl nitrite | HCID 10026 | — |
| 反応物 | (2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(2-amino-6-chloro-9H-purin-9-yl)tetrahydrofuran-3,4-diyl diacetate | HCID 10788628 | — |
| 溶媒 | Acetonitrile | HCID 6342 | — |
| 生成物 | Acetic acid (2R,3R,4R,5R)-3,4-diacetoxy-5-(6-chloro-2-iodo-purin-9-YL)-tetrahydro-furan-2-ylmethyl ester | HCID 482588 | — |
反応手順
To a solution of (2R,3R,4R,5R)-4-acetyloxy-5-(acetyloxymethyl)-2-(2-amino-6-chloropurin-9-yl)oxolan-3-yl acetate in acetonitrile was added diiodomethane and n-pentyl nitrite. The mixture was heated under nitrogen for 20 hours, then solvent removed under reduced pressure. The residue was purified by chromatography on silica gel, eluting with hexanes to hexanes/ethyl acetate 2:1, to provide (2R,3R,4R,5R)-4-acetyloxy-5-(acetyloxymethyl)-2-(6-chloro-2-iodopurin-9-yl)oxolan-3-yl acetate, which may be recrystallized from ethanol.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US06914053B2 |
| 出典データセット | uspto-grants-2005_07 |
| ORD ID | ord-9ba3d757d3e64f63bac5e5f97322b588 |
| 出典メモ | uspto-grants-2005_07 |