3-(7,7-dimethyl-2-oxo-bicyclo[2.2.1]hept-1-yl)-2-vinyl-2-thionia-bicyclo[2.2.1]heptane trifluoromethanesulfonate 、 (R)-4-methyl-N-(3-oxobutan-2-yl)benzenesulfonamide 在
sodium hydride 作用下,
以
二氯甲烷 为溶剂,
以80%的产率得到(1S,2R,5R)-1,2-dimethyl-3-[(4-methylphenyl)sulfonyl]-6-oxa-3-azabicyclo[3.1.0]hexane