Sodium Bicarbonate → HCID 15646682, compound

Participants

Reaction Conditions

Reaction Steps

The experiment is carried out as in Example 1, starting with 2-(3-chloropropyl)naphtho[1,8-cd]isothiazole 1,1-dioxide (7 g), sodium bicarbonate (4.2 g) and 4-(5-hydroxy-3-indolyl)-1,2,3,6-tetrahydropyridine (5.3 g) in dimethylformamide (50 cc) and tetrahydrofuran (50 cc). The mixture is heated for 5 hours at boiling point, then cooled to a temperature of about 20° C. Stirring is maintained for 7 hours at this temperature. After purification by crystallization from water (100 cc), then recrystallization from a boiling acetoneethanol mixture (50-50 vol) (80 cc), 2-(3-[4-(5-hydroxy 3-indolyl)-1,2,3,6-tetrahydro-1-pyridyl]propyl)naphtho[1,8-cd]isothiazole 1,1-dioxide (5.1 ) is obtained, m.p. 214° C.

Provenance & Evidence