反应详情

90 mg of α-{6-[1-ethoxycarbonyl-3-phenylpropylamino]-5-oxo-2-phenylperhydro-1,4-thiazepin-4-yl}acetic acid (prepared as described in Example 10 above) was hydrolysed with aqueous sodium hydroxide in the manner described in Example 5, giving the title compound as a powder in a yield of 70 mg.