Thionyl Chloride → HCID 15432461, compound

Participants

Reaction Steps

1 equivalent of 3-[4-(3-chloro-4-methoxybenzylamino)-5,6,7,8-tetrahydro [1]benzothieno-[2,3-d]pyrimidine-2-yl]propionic acid and 1.2 equivalents of thionyl chloride are stirred in dichloromethane for 2 hours. The solvent is removed and 3-[4-(3-chloro-4-methoxybenzylamino)-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine-2-yl]propionyl chloride is obtained. This is transferred to aqueous ammonia, the mixture is stirred for one hour and, after customary working up, 3-[4-(3-chloro-4-methoxybenzylamino)-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine-2-yl]propionamide is obtained.

Provenance & Evidence