反应详情

An ice-cooled solution of 26.4 mg (0.15 mmol) of 3-chloro-1-propanesulphonyl chloride and 0.03 ml (0.2 mmol) of triethylamine in 3.5 ml of absolute dichloromethane is admixed with 35 mg (0.1 mmol) of N-{[3-(4-aminophenyl)-2-oxo-1,3-oxazolidin-5-yl]-methyl}-5-chloro-2-thiophene-carboxamide (from Example 149). After 30 min, ice-cooling is removed and the mixture is stirred at room temperature overnight, and 150 mg (about 5.5 eq.) of PS-trisamine (Argonaut Technologies) and 0.5 ml of dichloromethane are then added. The suspension is stirred gently for 2 h and filtered (the resin is washed with dichloromethane/methanol), and the filtrate is concentrated. The product is purified by preparative RP-HPLC. Yield: 19.6 mg (40% of theory),

1. temperatureice-cooling
2. customis removed
3. addition150 mg (about 5.5 eq.) of PS-trisamine (Argonaut Technologies) and 0.5 ml of dichloromethane are then added
4. stirringThe suspension is stirred gently for 2 h
5. filtrationfiltered (the resin
6. washis washed with dichloromethane/methanol), and the filtrate
7. concentrationis concentrated
8. customThe product is purified by preparative RP-HPLC