反应详情

A solution was prepared from 0.15 g. of trans-(±)-2-amino-5-n-propyl-4,4a,5,6,7,8,8a,9-octahydrothiazolo[4,5-g]quinoline (from Example 1) in 3 ml. of tetrahydrofuran (THF) to which has been added two drops of dimethylformamide (DMF). Five hundredths milliliters of acetyl chloride were added and the solution stirred at room temperature for 15 minutes. In time, the reaction mixture became a solid colorless mass. The solid was suspended in ether and the ethereal suspension filtered. The solid was then recrystallized from a methanol/ether solvent mixture to give purified trans-(±)-2-acetylamino-5-n-propyl-4,4a,5,6,7,8,8a,9-octahydrothiazolo[4,5-g]quinoline hydrochloride; yield=30.3%; melting point above 200° C.

1. customA solution was prepared from 0.15 g
2. filtrationthe ethereal suspension filtered
3. customThe solid was then recrystallized from a methanol/ether solvent mixture
4. customto give
5. custompurified trans-(±)-2-acetylamino-5-n-propyl-4,4a,5,6,7,8,8a,9-octahydrothiazolo[4,5-g]quinoline hydrochloride