Acetic Anhydride → HCID 70493342, compound

Participants

Reaction Steps

A mixture of 3.75 g of (±)-cis-2-(4-methoxyphenyl)-3-hydroxy-5-[2-(N-benzyloxycarbonyl-N-methylamino)ethyl]-8-benzyloxy-2,3-dihydro-1,5-benzothiazepin-4(5H)-one, 23 ml of acetic anhydride and 8 ml of pyridine is treated in the same manner as described in Example 1-(2). 4.18 g of (±)-cis-2-(4-methoxyphenyl)-3-acetoxy-5-[2-(N-benzyloxycarbonyl-N-methylamino)ethyl]-8-benzyloxy-2,3-dihydro-1,5-benzothiazepin-4(5H)-one are obtained as an oil.

Provenance & Evidence