HuagongsheHuagongshe Chemistry Print Report · For research reference only
1-Cyclopropyl-3-ethoxycarbonyl-7,8-difluoro-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine → (RS)-1-Cyclopropyl-3-ethoxycarbonyl-7-fluoro-8-[3-(2-furyl)-1-piperazinyl]-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1-Cyclopropyl-3-ethoxycarbonyl-7,8-difluoro-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine | HCID 14853340 | — |
| Reactant | 2-(Furan-2-yl)piperazine | HCID 16740777 | — |
| Product | (RS)-1-Cyclopropyl-3-ethoxycarbonyl-7-fluoro-8-[3-(2-furyl)-1-piperazinyl]-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine | HCID 54566174 | 89.5% |
Reaction Steps
(RS)-1-Cyclopropyl-3-ethoxycarbonyl-7-fluoro-8-[3-(2-furyl)-1-piperazinyl]-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine was prepared under the conditions of Example 39, but starting with 1-cyclopropyl-7,8-difluoro-3-ethoxycarbonyl-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine (1.05 g) and (RS)-2-(2-furyl)piperazine (0.6 g). (RS)-1-Cyclopropyl-3-ethoxycarbonyl-7-fluoro-8-[3-(2-furyl)-1-piperazinyl]-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine (1.3 g) is obtained in the form of a yellow solid, m.p. 182° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05053509 |
| Source dataset | uspto-grants-1991_10 |
| ORD ID | ord-654d519a2a124b2aa2c94ffeddf1cafd |
| Source note | uspto-grants-1991_10 |