Treatment of the syn-epoxyamide 3 with either ammonium hydroxide or sodium hydride gives 10,11-dihydro-anti-11-hydroxy-10,5-(iminomethano)-5H-dibenzo[a,d]cyclohepten-13-one (1a). This compound is readily converted to the syn-epimer 1c by oxidation to 1b and subsequent hydrogenation. The ketone 1b reacts with Grignard reagents to give the tertiary alcohols 1k,l which undergo hydrogenolysis to give the
用氢氧化
铵或氢化
钠处理顺-环氧酰胺 3 得到 10,11-dihydro-anti-11-hydroxy-10,5-(iminomethano)-5H-dibenzo[a,d]cyclohepten-13-one (1a )。该化合物很容易通过氧化为 1b 并随后氢化而转化为顺式差向异构体 1c。酮 1b 与
格氏试剂反应得到叔醇 1k,l,它经过氢解得到 11-取代的内酰胺 1q,r。用
氢化铝锂还原内酰胺得到相应的胺。