HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → Methyl 5-({2-amino-5-[(4-methyl-1-piperazinyl)methyl]phenyl}amino)-3-({(1R)-1-[2-(trifluoromethyl)phenyl]ethyl}oxy)-2-thiophenecarboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Trimethyl orthoformate | HCID 9005 | — |
| Reactant | (R)-Methyl 5-((5-((4-methylpiperazin-1-yl)methyl)-2-nitrophenyl)amino)-3-(1-(2-(trifluoromethyl)phenyl)ethoxy)thiophene-2-carboxylate | HCID 44185548 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | Methyl 5-({2-amino-5-[(4-methyl-1-piperazinyl)methyl]phenyl}amino)-3-({(1R)-1-[2-(trifluoromethyl)phenyl]ethyl}oxy)-2-thiophenecarboxylate | HCID 57538942 | — |
Reaction Steps
A mixture of methyl 5-({5-[(4-methyl-1-piperazinyl)methyl]-2-nitrophenyl}amino)-3-({(1R)-1-[2-(trifluoromethyl)phenyl]ethyl}oxy)-2-thiophenecarboxylate (0.24 g, 0.415 mmol), 5% Pd/C (0.144 g), HCl (1.25 M in MeOH, 0.034 mL, 0.043 mmol), trimethylorthoformate (1.66 mL, 15.2 mmol) in toluene (0.58 mL) was hydrogenated under a H2 atmosphere at 1.1 bar pressure overnight. The vessel was purged with N2 and the reaction mixture was analysed by HPLC to confirm presence of the title compound which was not purified, but used crude in the next step. LRMS found m/z [ES+] 549.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08236954B2 |
| Source dataset | uspto-grants-2012_08 |
| ORD ID | ord-8b5f1db41e784fa4804b6a06661a95ed |
| Source note | uspto-grants-2012_08 |