Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 59180420 | HCID 59180420 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 59180429 | HCID 59180429 | 87.2% |
Reaction Steps
To a solution of 17 (80.0 mg; 0.17 mmol) in tetrahydrofuran (5 mL) was added aqueous hydrochloric acid (5.0 mL; 10.0 mmol; 2N). The reaction mixture was heated at 75° C. for 4 hours, and then additional aqueous hydrochloric acid (3.0 mL; 6N) was added and the reaction mixture further heated at reflux for 4-5 hours. The reaction mixture was allowed to cool to room temperature and then extracted with ethyl acetate (15 mL). The organic layer was separated, dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The resulting crude clear oil was purified by automated silica gel column chromatography (Biotage®) eluting with ethyl acetate/hexanes (0 to 30% v/v over 400 mL gradient elution) to give the title product as a clear oil (64.0 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08178699B2 |
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| Source dataset | uspto-grants-2012_05 |
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| ORD ID | ord-99b65e54c29244ae8622797cd5c433ad |
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| Source note | uspto-grants-2012_05 |
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