HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 710016Generated: October 30, 2026
Dichloromethane → HCID 71224725, compound
https://huagongshe.com/reaction/710016
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dichloromethane | HCID 6344 | — |
| Reactant | Trifluoroacetic acid | HCID 6422 | — |
| Reactant | Ethyl isocyanate | HCID 8022 | — |
| Reactant | HCID 71224703 | HCID 71224703 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 71224725 | HCID 71224725 | 18% |
Reaction Steps
(R)-3-[3-[(Furan-2-carbonyl)-amino]-4-(4-o-tolyl-piperazin-1-yl)-benzoylamino]-piperidine-1-carboxylic acid tert-butyl ester (0.12 g, 0.204 mmol) was stirred with a mixture of DCM (1.0 mL) and TFA (1.0 mL) for 4 h. LC-MS indicated the completion of deprotection. The mixture was concentrated and dissolved in pyridine (5.0 mL). EtNCO (29 mg, 0.41 mmol) was added and the reaction mixture was stirred at 45° C. for 6 h. Pyridine was rotavaped out and the crude was dissolved in methanol and purified on preparatory HPLC using water/methanol as eluent to give desired product (0.02 g, 18%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09181226B2 |
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| Source dataset | uspto-grants-2015_11 |
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| ORD ID | ord-011b4e1672e04789a4b74c640b425dae |
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| Source note | uspto-grants-2015_11 |
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