methyl (3R,7S,7aR)-3-tert-butyl-7-hydroxy-7-[5-[5-[[(3-hydroxy-2,2-dimethyl-7-phenylheptanoyl)amino]methyl]-1,2-oxazol-3-yl]pentyl]-6,6-dimethyl-5-oxo-1,3-dihydropyrrolo[1,2-c][1,3]oxazole-7a-carboxylate 在
1,3-丙二硫醇 、
盐酸 作用下,
以
2,2,2-三氟乙醇 、
水 为溶剂,
反应 4.0h,
以72%的产率得到methyl (2R,3S)-3-hydroxy-3-[5-[5-[[(3-hydroxy-2,2-dimethyl-7-phenylheptanoyl)amino]methyl]-1,2-oxazol-3-yl]pentyl]-2-(hydroxymethyl)-4,4-dimethyl-5-oxopyrrolidine-2-carboxylate