HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1055396Generated: October 30, 2026
HCID 90039259, compound → HCID 90037993, compound
https://huagongshe.com/reaction/1055396
Participants
| Role | Name | HCID | Charge |
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| Reactant | HCID 90039259 | HCID 90039259 | — |
| Catalyst | Palladium hydroxide | HCID 9942167 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 90037993 | HCID 90037993 | 98.2% |
Reaction Steps
3-(Dibenzylamino)-8,9-difluoro-2′,3′,5′,6′-tetrahydro-3H-spiro[benzo[b][1,4]oxazepine-2,4′-pyran]-4(5H)-one (100 mg, 215 μmol, Eq: 1.00) was added to MeOH (10 mL) and the mixture warmed 40° C. to give a light yellow suspension. 20% Pd(OH)2/C (100 mg, 215 μmol, Eq: 1.00) was added, the mixture was degassed and stirred at RT under H2 for 6.5 h. The mixture was filtered through Celite and concentrated under reduced pressure to afford 3-amino-8,9-difluoro-2′,3′,5′,6′-tetrahydro-3H-spiro[benzo[b][1,4]oxazepine-2,4′-pyran]-4(5 h)-one (60 mg, 98% yield) as colorless oil which was used without purification. MS m/z 285.0 (MH+)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09394263B2 |
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| Source dataset | uspto-grants-2016_07 |
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| ORD ID | ord-47085b71a67e441688c276ba5720f518 |
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| Source note | uspto-grants-2016_07 |
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