反应 #3250372
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08969568B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: 100 mg (R)-4-(hydroxymethyl)-1-((R)-1-phenylethyl)pyrrolidine-2-one (2.1) was placed in 2 mL dimethylacetamide and 20 mg sodium hydride (60%) were added and the mixture was stirred for 15 min at ambient temperature. Then 100 mg 6.37 was added and the mixture was stirred for 3 h at 50° C., further 4 h at 80° C. and overnight at 50° C. The reaction mixture was purified by chromatography (RP-HPLC-MS). The corresponding fractions were freeze-dried to provide protected Example 78 as intermediate. The intermediate was then treated with 2 mL of trifluoroacetic acid and heated for 30 min at 160° C. in the microwave. The reaction mixture was diluted with water and acetonitrile and purified by chromatography (RP-HPLC-MS). The corresponding fractions were freeze-fried. the mixture was stirred for 3 h at 50° C., further 4 h at 80° C. and overnight at 50° C The reaction mixture was purified by chromatography (RP-HPLC-MS) The corresponding fractions were freeze-dried to provide heated for 30 min at 160° C. in the microwave purified by chromatography (RP-HPLC-MS)
来源 ID: ord-20371961a842498e9cd7562ef1a1c289