HuagongsheHuagongshe Chemistry Print Report · For research reference only
1H-Benzimidazole-2-carboxaldehyde → 6-[4-(1H-benzimidazol-2-ylmethyl)piperazin-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1H-Benzimidazole-2-carboxaldehyde | HCID 76826 | — |
| Reactant | 6-Piperazino-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine | HCID 1476862 | — |
| Product | 6-[4-(1H-benzimidazol-2-ylmethyl)piperazin-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine | HCID 67341668 | — |
Reaction Steps
Reductive amination of 6-(piperazin-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine with 1H-benzimidazole-2-carbaldehyde was carried out according to General Synthetic Method 5. The crude product was purified by hplc using a Waters XBridge Prep C18 OBD column, 5μ silica, 19 mm diameter, 100 mm length eluted with decreasingly polar mixtures of water (containing 1% aqueous ammonia) and acetonitrile as eluents to give 6-[4-(1H-benzimidazol-2-ylmethyl)piperazin-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08003649B2 |
| Source dataset | uspto-grants-2011_08 |
| ORD ID | ord-693950e7e10848228796e1c5e7f568ba |
| Source note | uspto-grants-2011_08 |