HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Methylpiperazine, (R)- → (R)-4-(3-methylpiperazin-1-yl)-N-(pyrimidin-4-yl)benzenesulfonamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Methylpiperazine, (R)- | HCID 7330434 | — |
| Reactant | 4-bromo-N-(pyrimidin-4-yl)benzenesulfonamide | HCID 59465704 | — |
| Reactant | sodium 2-methylpropan-2-olate | HCID 178418730 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | (R)-4-(3-methylpiperazin-1-yl)-N-(pyrimidin-4-yl)benzenesulfonamide | HCID 59465692 | 100% |
Reaction Steps
Synthesized according to general procedure 8. The reaction was set up with 4-bromo-N-(pyrimidin-4-yl)benzenesulfonamide (2.4 mmol), (R)-2-methylpiperazine (4.7 mmol), Pd(dba)3 (0.12 mmol) 2-(di-t-butylphosphino)biphenyl (0.50 mmol), NaO-tBu (10 mmol), and toluene (12 mL). For the purification, 10% MeOH in CH2Cl2 with the addition of 1% triethylamine was used as a solvent system to obtain the desired amine as a white solid. (900 mg, 100% yield). LC/MS (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)), m/z: M+1 obs=334.3; tR=0.4 min.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08309587B2 |
| Source dataset | uspto-grants-2012_11 |
| ORD ID | ord-d1c95e0b58a44e5a9de9db6aa6f9eb5f |
| Source note | uspto-grants-2012_11 |