(4S,5S,6S)-4-({(S)-Carboxy-[(2R,3S,4R,5R)-5-(4-formyl-2-oxo-2,3-dihydro-imidazol-1-yl)-3,4-dihydroxy-tetrahydro-furan-2-yl]-methyl}-carbamoyl)-6-(4-methoxy-phenyl)-5-methyl-[1,3]oxazinane-3-carboxylic acid tert-butyl ester 在
三氟乙酸 作用下,
反应 0.25h,
以59%的产率得到(S)-[(2S,3S,4S)-2-Amino-4-hydroxy-4-(4-methoxy-phenyl)-3-methyl-butyrylamino]-[(2R,3S,4R,5R)-5-(4-formyl-2-oxo-2,3-dihydro-imidazol-1-yl)-3,4-dihydroxy-tetrahydro-furan-2-yl]-acetic acid