phenyl 3-benzyloxy-5-(dimethylaminomethyl)isoxazole-4-carboxylate 、
(1S,2R,7S,8R)-5-methyltricyclo[6.2.1.02,7]undeca-4,9-dien-3-one 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
以47%的产率得到(5aR,6S,9R,9aS,10aR,11R)-3-(benzyloxy)-11-(dimethylamino)-5-hydroxy-10a-methyl-6,9,9a,10,10a,11-hexahydro-6,9-methanoanthra[2,3-d]isoxazol-4(5aH)-one