Acetic Anhydride → HCID 70453360, compound

Participants

Reaction Steps

A mixture of 0.67 g of (+)-cis-2-(4-methoxyphenyl)-3-hydroxy-5-[2-(diethylamino)ethyl]-8-chloro-2,3-dihydro-1,5-benzothiazepin-4(5H)-one, 7 ml of acetic anhydride and 2 drops of pyridine is treated in the same manner as described in Example 16. The crude product is converted into its oxalate and recrystallized from ethanol. 0.634 g of (+)-cis-2-(4-methoxyphenyl)-3-acetoxy-5-[2-(diethylamino)ethyl]-8-chloro-2,3-dihydro-1,5-benzothiazepin-4(5H)-one oxalate is obtained.

Provenance & Evidence