(S)-3-[2-(3-Allyloxy-5-benzyloxy-4-methyl-phenyl)-acetyl]-4-benzyl-oxazolidin-2-one 生成 (S)-3-[(R)-2-(3-Allyloxy-5-benzyloxy-4-methyl-phenyl)-2-azido-acetyl]-4-benzyl-oxazolidin-2-one 、 (S)-3-[(S)-2-(3-Allyloxy-5-benzyloxy-4-methyl-phenyl)-2-azido-acetyl]-4-benzyl-oxazolidin-2-one