反应详情

In a manner analogous to that described in the first paragraph of Example 5, starting from 0.058 g of a mixture of (E)-2′-(D-alanyl)-2′-cyclopentyl-2(R)-[1(S)-[tetrahydro-2(RS)-pyranyloxy)carbamoyl]-4-phenyl-3-butenyl]-4-methylvalero-hydrazide and (E)-2′-(D-alanyl)-2′-cyclopentyl-2(S)-[1(R)-[(tetrahydro-2(RS)-pyranyloxy)carbamoyl]-4-phenyl-3-butenyl]-4-methylvalerohydrazide there was obtained 0.048 mg of a mixture of (E)-2′-(D-alanyl)-2′-cyclopentyl-2(R)-[1(S)-(hydroxycarbamoyl)-4-phenyl-3-butenyl]-4-methylvalerohydrazide p-toluene-sulphonate and (E)-2′-(D-alanyl)-2′-cyclopentyl-2(S)-[1(R)-(hydroxycarbonyl)-4-phenyl-3-butenyl]-methylvalerohydrazide p-toluenesulphonate in the form of a pale pink solid.