反应详情

180 mg of isomer B of t-butyl α-[6-(1-benzyloxycarbonyl-3-phenylpropylamino)-5-oxo-2-(3-thienyl)perhydro-1,4-thiazepin-4-yl]acetate were treated with trifluoroacetic acid by the procedure described in Example 43, to remove the t-butyl group and give 140 mg of the title compound as a powder.

1. customto remove the t-butyl group