HuagongsheHuagongshe Chemistry Print Report · For research reference only
Isobutane → tert-Butyl 4-(3-carbamoyl-1-(4-cyano-3-fluorophenyl)-6-oxo-1,6-dihydropyridazin-4-yloxy)piperidine-1-carboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Isobutane | HCID 6360 | — |
| Reactant | Methyl 4-(1-(tert-butoxycarbonyl)piperidin-4-yloxy)-1-(4-cyano-3-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate | HCID 44620996 | — |
| Reactant | 1-(4-(Methylsulfonyl)phenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate | HCID 86658658 | — |
| Product | tert-Butyl 4-(3-carbamoyl-1-(4-cyano-3-fluorophenyl)-6-oxo-1,6-dihydropyridazin-4-yloxy)piperidine-1-carboxylate | HCID 67445416 | 91% |
Reaction Steps
tert-Butyl 4-(3-carbamoyl-1-(4-cyano-3-fluorophenyl)-6-oxo-1,6-dihydropyridazin-4-yloxy)piperidine-1-carboxylate was prepared in 91% yield according to procedures described in Example 31 (Step A) substituting methyl 441-(tert-butoxycarbonyl)piperidin-4-yloxy)-1-(4-(methylsulfonyl)phenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate for methyl 4-(1-(tert-butoxycarbonyl)piperidin-4-yloxy)-1-(4-cyano-3-fluorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylate (example 29). MS (ESI) 402 (M+H-tBu).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08372837B2 |
| Source dataset | uspto-grants-2013_02 |
| ORD ID | ord-b3d7758759f2471b81a8c11237c59839 |
| Source note | uspto-grants-2013_02 |