反应详情

0.114 g (0.25 mmol) tert-butyl (R)-4-carboxymethyl-3-(3,5-difluoro-phenyl)-5-oxo-8,11-dioxa-1,4-diaza-spiro[5.6]dodecane-1-carboxylate were stirred overnight at RT with 67.9 mg (0.27 mmol) (S)-5-amino-1,3-dihydrospiro[inden-2,3′-pyrrolo[2,3-b]pyridin]-2′(1′H)-one, 63.3 mg (0.33 mmol) 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride, 44.6 mg (0.33 mmol) HOBT, 35 μl (0.25 mmol) TEA and 1.5 ml DMF. The solvent was spun off and the residue was stirred with 15 ml of a methanolic hydrochloric acid (1.25N) 1 h at 50° C. The reaction mixture was concentrated by rotary evaporation and the residue was purified by PR-HPLC. The product-containing fractions were concentrated by rotary evaporation and the residue was triturated with diisopropylether. After suction filtering the solid was washed with diisopropylether and dried.

1. concentrationThe reaction mixture was concentrated by rotary evaporation
2. customthe residue was purified by PR-HPLC
3. concentrationThe product-containing fractions were concentrated by rotary evaporation
4. customthe residue was triturated with diisopropylether
5. filtrationAfter suction filtering the solid
6. washwas washed with diisopropylether
7. customdried