反应详情

160 mg of α-{6(R)-[1(S)-ethoxycarbonyl-3-phenylpropylamino]-3(R)-isopropyl-5-oxoperhydro-1,4-thiazepin-4-yl}acetic acid (prepared as described in Example 28 above) were hydrolyzed with aqueous sodium hydroxide in the same manner as described in Example 5, giving 113 mg of the title compound as a powder.