反応 #3278489
関連文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US06998420B2
反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
実験手順: To a slurry of [3-fluoro-4(4-morpholinyl)phenyl]carbamic acid phenylmethyl ester (Example 1) (1.0039 g, 3.039 mmol) and tert-butyl (2S)oxiranylmethylcarbamate (Example 5) (0.653 g, 3.77 mmol, 1.24 eq) in THF (1.5 ml) at 0° C. was added a solution of lithium t-butoxide in THF (18.07 wt %, 1.735 g, 3.92 mmol, 1.29 eq). After standing 2 days at 20–25° C., methylene chloride (5.0 ml), then acetic acid (0.35 ml, 6.11 mmol, 2.01 eq) followed by water (3.5 ml) was added. The phases were separated and the aqueous washed with methylene chloride (3.5 ml). The combined organics were dried on magnesium sulfate and concentrated to an oil which was shown to contain 1.03 g (85.7%) of Compound III, wherein R1=3-fluoro-4-(4-morpholinyl)phenyl, R3=t-butyl, by external standard HPLC: retention time=4.06 min (column=Zorbax SB-C8 3.5 micron 150×4.6 mm, flow rate=2.0 ml/min, gradient elution from 30:70 A:B to 90:10 A:B over 15 minutes; A=969:30:1 acetonitrile: THF: trifluoroacetic acid; B=949:50:1 water: THF:trifluroracetic acid). was added The phases were separated the aqueous washed with methylene chloride (3.5 ml) The combined organics were dried on magnesium sulfate concentrated to an oil which 3.5 micron 150×4.6 mm, flow rate=2.0 ml/min, gradient elution from 30:70 A:B to 90:10 A:B over 15 minutes
ソース ID: ord-85c960d6e7694e318507a98af7a38236