Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzylamine | HCID 7504 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Reactant | (1R*,3S*,5S*,6R*)-8-Benzyl-3-fluoro-1-phenyl-6-(tert-butoxycarbonyl)-8-azabicyclo[3.2.1]octan-2-one | HCID 70008248 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 70008795 | HCID 70008795 | 31.7% |
Reaction Steps
(1R*,3S*,5S*,6R*)-8-Benzyl-3-fluoro-1-phenyl-6-(tert-butoxycarbonyl)-8-azabicyclo[3.2.1]octan-2-one (Description 36a; 1.68 g, 4.1 mmol), titanium iso-propoxide (1.8 mL, 6.2 mmol) and benzylamine (520 μL, 4.7 mmol) were heated together at 85° C. for two hours, then cooled and diluted with methanol (30 mL). The solution was then heated to 50° C. and sodium borohydride (1.06 g, 28 mmol) was added portionwise over 4 hours. After addition was complete, the solution was heated for a further 16 hours, then cooled and poured into aqueous sodium hydroxide solution (100 mL, 1M). The suspension formed was extracted with ethyl acetate (2×100 mL) and the extracts were dried (MgSO4). Concentration in vacuo gave a gum which was purified by silica chromatography to give the title compound (651 mg, 1.3 mmol).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06555552B2 |
|---|
| Source dataset | uspto-grants-2003_04 |
|---|
| ORD ID | ord-73ef5466dc964c72bd8dcaf5aa5aa632 |
|---|
| Source note | uspto-grants-2003_04 |
|---|