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Sodium Carbonate → 1,8-Naphthyridine
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Sodium Carbonate | HCID 10340 | — |
| 反応物 | 2-(1,3-Benzodioxol-5-yl)piperazine | HCID 2771771 | — |
| 反応物 | 3-Ethoxycarbonyl-7,8-difluoro-1-methyl-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine | HCID 9839987 | — |
| 生成物 | 1,8-Naphthyridine | HCID 136069 | 661.4% |
| 生成物 | HCID 53975414 | HCID 53975414 | — |
反応手順
(RS)-3-Ethoxycarbonyl-7-fluoro-1-methyl-8-[3-(3,4-methylenedioxyphenyl)-1-piperazinyl]-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine was prepared under conditions similar to Example 39, but starting with 3-ethoxycarbonyl-7,8-difluoro-1-methyl-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine (1.59 g), (RS)-2-(3,4-methylenedioxyphenyl)piperazine (1.25 g) and sodium carbonate (0.64 g). (RS)-3-Ethoxycarbonyl-7-fluoro-1-methyl-8-[3-(3,4-methylenedioxyphenyl)-1-piperazinyl]-4-oxo-1,4-dihydrobenzo[b][1,8 naphthyridine (2.15 g) is obtained in the form of a yellow solid, m.p. 252° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05053509 |
| 出典データセット | uspto-grants-1991_10 |
| ORD ID | ord-1a2672ea7e304abca0f88808b0986ebd |
| 出典メモ | uspto-grants-1991_10 |