(S)-3-{3-[2-(3-ethanesulfonyl-prop-1-ynyl)-phenyl]-prop-2-ynyl}-4-phenyl-oxazolidin-2-one 在
mesoporous silica grafted with the tertiary amine group 作用下,
以
苯 为溶剂,
反应 4.0h,
以21%的产率得到(11R,11aS)-11-ethanesulfonyl-11a-phenyl-1,4,11,11a-tetrahydro-2-oxa-3a-azacyclopenta[b]anthracen-3-one