(4R,4aS,7S,7aR,12bS)-3-(cyclobutylmethyl)-4a,7-dihydroxy-1,2,4,5,6,7,7a,13-octahydro-4,12-methanobenzofuro[3,2-e]isoquinoline-9-carbonitrile 在
potassium hydroxide 作用下,
以
叔丁醇 为溶剂,
反应 12.0h,
以79%的产率得到(1S,5R,13R,14S,17S)-4-(cyclobutylmethyl)-14,17-dihydroxy-12-oxa-4-azapentacyclo[9.6.1.0^{1,13}.0^{5,17}.0^{7,18}]octadeca-7(18),8,10-triene-10-carboxamide