反应详情

Following the procedure described in Example 43, 180 mg of isomer B of t-butyl α-[6-(1-benzyloxycarbonyl-3-phenylpropylamino)-5-oxo-2-(2-thienyl)perhydro-1,4-thiazepin-4-yl]acetate (prepared as described in Example 54) was de-t-butylated using trifluoroacetic acid, to afford 135 mg of the title compound as a powder.