5-tert-butyl-2-(1-cyano-2,2-dimethyl-propylidene)-3-methyl-6-oxo-4c-phenyl-[1,3]oxazinane-5r-carbonitrile 在
sodium methylate 作用下,
以
甲醇 为溶剂,
生成 2-Cyano-2-{[(2-cyano-3,3-dimethyl-butyryl)-methyl-amino]-phenyl-methyl}-3,3-dimethyl-butyric acid methyl ester