反应详情

To a solution of 1-methylcyclopropyl 4-((1R,2S)-2-{2-[4-(2-methoxy-2-oxoethyl)phenoxy]ethyl}cyclopropyl)piperidine-1-carboxylate (Example 53, Step A, 88 mg, 0.21 mmol) in a 1:1:1 mixture of THF/methanol/water (3 mL) was added lithium hydroxide (10.7 mg, 0.44 mmol) and the resulting mixture stirred for 2 h at RT. The mixture was neutralized via addition of 1N aqueous HCl until pH of 7 was obtained. The solution was then extracted with ethyl acetate (3×10 mL). The organics were combined, dried over sodium sulfate, filtered and the filtrate concentrated under reduced pressure to afford the title compound used for the next reaction without further purification. HPLC/MS; 1.22 min, 401 (M+H)+.

1. customwas obtained
2. extractionThe solution was then extracted with ethyl acetate (3×10 mL)
3. dry with materialdried over sodium sulfate
4. filtrationfiltered
5. concentrationthe filtrate concentrated under reduced pressure